129
UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY FINAL ANALYTICAL RESULTS OF STREAM-SEDIMENT, GLACIAL DEBRIS AND NONMAGNETIC HEAVY-MINERAL CONCENTRATE SAMPLES FROM THE MT. HAYES QUADRANGLE, ALASKA Richard O'Leary, Donald A. Risoli, Gary C. Curtin, - Richard B. Tripp, Christine M. McDougal , and David L. Huston - Open-Fi 1 e Report 82-325 1982

M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

  • Upload
    hahanh

  • View
    213

  • Download
    0

Embed Size (px)

Citation preview

Page 1: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

UNITED STATES DEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEY

FINAL ANALYTICAL RESULTS OF STREAM-SEDIMENT,

GLACIAL DEBRIS AND NONMAGNETIC HEAVY-MINERAL

CONCENTRATE SAMPLES FROM THE MT. HAYES

QUADRANGLE, ALASKA

Richard O'Leary, Donald A. Risoli, Gary C. Curtin, -

Richard B. Tripp, Christine M. McDougal , and David L. Huston -

Open-Fi 1 e Report 82-325

1982

Page 2: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

CONTENTS

Page

Introduction--------------------I--------------------------~--------- 1

Description of sample media----------------------------------------- 1

Sample preparation and methods of analyses------------------------ 1

Explanation of data------------------------------------------:------ 4

References ~ited----------------,---~--------------------------------- 5

Plate 1. --Map showing sites at which stream-sediment, glacial-debris,

and heavy-mineral concentrate samples were collected from

the Mt. Hayes quadrangle, Alaska------------------------ in pocket

TABLES

Table 1 .--Spectrographic analyses for nonmagnetic heavy-mineral

concentrate samples from the M t . Hayes quadrangle,

-

2.--Spectrographic and atomic-absorption analyses for -

stream-sediment and glacial-debris samples from the

M t . Hayes quadrangle, Alaska---------------------------- 66

Page 3: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

INTRODUCTION

A reconnaissance geochemical study was made in the Mt. Hayes, Alaska,

1:250,000-scale quadrangle (pl. 1) during the sumners of 1978, 1979, and 1980.

This study included the collection, preparation, and analysis of 912 stream-

sediment and glacial-debris samples, and 897 nonmagnetic heavy-mineral *

concentrate samples.

DESCRIPTION OF SAMPLE MEDIA

At most sites , stream sediments and heavy-mineral concentrates were

collected in the active channels of streams that drain areas ranging from about

2 5 to 10 km . The material in stream-sediment samples ranges in size from fine

sand and silt in areas ot low-relief to coarse sand and cobbles i n apeas of

high relief. In addition to the stream sediments and heavy-mineral concentrates,

glacial -debris samples were col lected from lateral and medial moraines of valley

glaciers. The stream sediments, glacial debris , and heavy-mineral concentrates t

are composed mainly of detrital material that has been mechanically introduced -

into a stream or moraine from the bedrock and colluvium within a particular -

drainage basin. The composition of the stream sediment and glacial debris

approximates that o f the weathering rock and soil material within the basin.

Further, all the sample types can reflect the presence of mineralized rock in

the drainage basin upstream. The heavy-mineral concentrates are especial ly

useful for determining the presence and regional distribution of certain heavy

metals and resistate minerals such as gold, cassiterite, and scheel ite.

SAMPLE PREPARATION AND METHODS OF ANALYSES

The stream-sediment and glacial -debris samples were air-dried and sieved

through an 80-mesh (0.177-n) sieve. The minus-80-mesh fraction was saved f o r

analysis.

Page 4: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

The heavy-mineral concentrates were p re l im ina r i l y prepared i n the f i e l d by

panning t o remove the bu lk o f the l i g h t minerals. The panned samples were

sieved through a 35-mesh (0.42-mr) screen i n the laboratory, and the minus-35-mesh

f r a c t i o n was f u r t h e r separated w i th bromoform (speci f ic g r a v i t y : 2.86) t o remove

the remaining 1 i g h t minerals. Magnetite and other s t rongly magnetic minerals

were f i r s t removed from the heavy-mineral f r ac t i on by use o f a hand magnet. The

1 / remaining heavy-mineral grains were passed throuph a Frantz Isodynamic Separator- ,

and a nonmagnetic f rac t i on was obtained a t a se t t i ng o f 0.6 amperes. This f rac t i on

was labeled C3 and saved f o r analysis and mineralopical examination. Although a

pure nonmagnetic f r a c t i o n cannot be obtained owing t o the presence of locked

polymineral i c grains, the nonmagnetic concentrates contain mainly muscovite,

sphene, zircon, apat i te , r u t i l e , anatase, and tourmaline. Ore minerals such as

gold, sul f ides, scheel i te, and c a s s i t e r i t e are found i n t h i s f r a c t i o n also.

The stream-sediment and g lac ia l -debr is sam~les were analyzed by a 6-step,

DC-arc semiquanti tat ive emisslon-spectrographic method described by Grimes and

Marranzino (1 968) f o r the analysis of geoloqic mater ial , Thirty-one elements -

weye determined per sample. Results were reported as the approximate midpoints - o f geometric brackets whose boundaries are 1.2, 0.83, 0.56, 0.38, 0.26, 0.18,

0.12, etc, These mldpoints are 1, 0.7, 0.5, 0.3, 0.2, 0.15, 0.1, etc.

Disal lowing r e s u l t s obtained near the detect ion levels , the r e p e a t a b i l i t y

o f the method, i n general, i s shown t o be w i th in one adjo in ing repor t ing

i n te rva l on each s ide o f the mean 83 percent o f t h e time, and w i t h i n two

adjo in ing repo r t i ng i n t e r v a l s on each side o f the mean 96 percent o f the t ime

(Motooka and Grimes, 1976).

lJ The use of the brand name i n t h i s repor t i s f o r descr ip t i ve purposes only

and does not cons t i t u te endorsement by the U.S. Geological Survey.

2

Page 5: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

The approximate v isual lower l i m i t s o f determination analyzed by the

spectrographic method f o r those given i n percentage are: i ron, 0.05;

magnesium, 0.02; calcium, 0.05; and t i tanium, 9.002. For those reported i n ppm

the lower l i m i t s are: manganese, 10; s i l ve r , 0.5; arsenic, 200; gold, 10;

boron, 10; barium, 20; bery l l ium, 1; bismuth, 10; cadmium, 20; cobalt , 5; 9

chromium, 10; copper, 5; lanthanum, 20; molybdenum, 5; niobium, 20, n icke l , 5;

lead, 10; antimony, 100; scandium, 5; t i n , 10; strontium, 130; tungsten, 50;

vanadium, 10; y t t r ium, 10; zinc, 200; zirconium, 10; and thorium, 100.

The nonmagnetic heavy-mineral concentrate samples were analyzed by the

same procedure as described above, w i th the fo l low ing exceptions : To e l im ina te

the spectral in ter ferences caused by high concentrations of i ron, 5 mg of

prepared sample was used instead of 10 mg, thus r a i s i n g the lower 1 i m i t o f

determination. A l l lower l i m i t s are doubled, and doubted l i m i t s occurr ing

between midpoints were rounded t o the higher midpoint ( f o r example, 20 ppm X 2 =

40 ppm, but are reported as 50 ppm) ,

Stream-sediment and g lac ia l -debr is samples were a lso analyzed f o r z inc by -

an atomic absorption method (Ward and others, 1969). -

The lower l i m l t o f determination f o r z inc i s 5 ppm.

The spectrographic and chemical analyses incorporated i n t h i s repo r t were

determined by E. F. Cooley, D. A. R iso l i , R. M. O'Leary, A. 1. Gruzensky, and

J , H u r r e l l ,

Page 6: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

EXPLANATION OF DATA

All analytical data were keypunched or entered on magnetic tape and stored

in the U.S. Geological Survey RASS (Rock Analysis Storage System) file (VanTrump

and Miesch, 1977). A computer print-out program was used in compiling tables 1

and 2. Table 1 1 ists the analytical results for the nonmagnetic heavy-mineral

concentrate sample. The data on table 2 includes the analyti;al results for

both stream-sediment and glacial-debris samples.

The columns have heading titles of sample, latitude, longitude, and each of

the elements followed by i t s concentration units, percent (pct.) or parts per

mlllion (ppm), and the analytical method used. Analytical methods which have

an 5 or an a.a. contain emission-spectrographic data or atomic absorption-data

respectively . Definitions of the qualifier codes used on table 1 are as follows:

--, no data available, or sample not analyzed for t h i s element; N, not detected

at the level of detection; c , detected, but below the 1 imit of determination or

below values shown; and >, greater than the value shown. -

_ The sample numbers appearing on plate 1 have been simp1 ified from the - sample numbers on tables 1 and 2 by eliminating the prefix MH, and the suffix

Page 7: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

REFERENCES CITED

Grimes, D. J., and Marranxino, A. P., 1968, Dfrect-current arc and alternating-

current spark mission spectrographic field methods for the semiquanti - tative analysis of geologic material: U.S. Geological Survey Circular

591, 6 p.

Motooka, 3 . M., and Grimes, D, J., 1976, Analytical precision of one-sixth

order smiquanti tative spectrographic analysis: U.S. Geological Survey

Circular 738, 25 p.

VanTrunp, George, Jr., and Miesch, A. T., 1977, The U.S. Geological Survey

RASS-STATPAC system for management and statis tical reduction of

geochemical data: Computers and Geosciences, v. 3, p. 475-488.

Ward. F. N., Nakagawa, H. M., Harms, T. F., and Van Sickle, 6. H., 1969,

Atomic-abs?rption methods of analysis useful in geochemical exploration:

U.S. Geological Survey Bulletin 1289, 45 p.

Page 8: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

Table 1 .--Spectrographic analyses for nonmagnetic-heavy-mineral concentra te qamples from the Mt. Hayes quadrangle, A laska .

L a t i t u d e

63 r] 19 63 1 40 6 3 6 5 63 1U 10 63 13 36

6 3 1 3 4 g 0 3 ? a ZU 6 3 1 6 3 2 6 3 16 4 2 4 3 18 36

L o n g i t v d e r e - p c t . 5

M H C l l C 3 ~1tiu1:CJ H H C I T C 3 M H O 1 4 C 3 M H t i 1 5 C 3

I.111!lIbCJ RHL717C3 MIlUl3C3 EllIi:19C3 1.ltIll LO C 3

1,000 l r U 0 0

700 500

1 SOU

sou 700

lrU00 1 r S O 0

7110

MHU 30C3 M H O 37C3 #bIU3dC3 R H U I q C 3 M H O L r J C 3

W H O 4 1 C 3 fi'Hil g C 3 l l r l G 4 3 C J M H i l h 4 C 3 N H 0 4 5 C 3

Page 9: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E z z w o o o o o o z Z C I ~ O C I o o n c ~ o z o o o o a o o a ~ Z Z Z Z O ~ O Z Z z z z o z a N N ~ U O N V I 0 0 a a O O O O ~ N h a 0 O ~ O W N N N N N N (1 V V F P V - O D m b mU,mN V A 0 C ?U- v v v

E 0 0 0 0 0 00000 0 0 O o n o n 0 0 2 Z Z O O O O O O O Z Z r r t z O O W z a Z Z Z O Z a m m m m m m m m m m m m m m m m m m m m l c h V I m a V I m m rn m n V V V V V v v v v v V V V V V v v v v v v v V V V v I D r

0 0 0 ~ 0 0 3 0 0 0 OOQCJC2 53033 00093 3 0 0 5 a 0 0 5 3 6 00000 E m m m v - b l m n n m m a m h 3 0 m h h m m m h 0 C b - I n m 3 m m m h m m h 0 h t - L - P . m m m h n a - ' U r N ~ C r r r .- a I U1

E 3 0 0 0 0 O O O O O O O O O O 3 0 0 0 0 d l o a o o o o o o m m m m m m o o m o m o o o o m P N r r N O O h N h m r U O C O O O O O O N r N m m 3 m m L h - F- . - - - N P J v N r N m N m r D V r U r W V I N W L r r ) h l N r N - I * 0 u

E T m . # N t Z Z N Z N Z Z E W W W N W N N N W N N M r r ) N W W N N W N N N N N N W N W W W W N W P v v V V V V V v v v v V V V v v v v v v v v v v v v v v v 0 I @ U P

m n m m q m w m m r u Y ~ ~ M M ~ m q q m tor nu^, n n m ~ m n m m m m m n m r r ) n n n n ~ n d U U V U U U U U U U U U V U U U V U J U V V L V , A U U U U U U U V b ' U U U U U U U U U U U U

Page 10: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 0 0 0 3 0 0 0 Q O 00000 O O G O W 0 3 0 0 0 00000 O U O D 3 O D D 0 0 m 0 0 3 0 I C 0 3 0 3 m 0 0 * 0 0 moP.03 h S L r n 0 0 0 0 " O 00000 0 0 3 3 0 O O S 3 0 o n 0 3 0 I a m N ~ U - W ~ ~ n - w ~ F- F P .- m M m m ~ - m f i t - h ~ ~ I ~ I ~ I M W r u m n m ~ ~ r w m m

Page 11: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- C o n c e r t t r a t e s - - c o n t i n u e d

Sample C a t i t u d e L o n g i t u d e Fe-pc t . Mg-pc t . Ca-pJc't. 4 T i-pc t . Mn-ppm A g - p p m A S - p p m Au-ppm 0 - P P ~ Ba-ppm s 5 5 s S s 9 s 5 5

Page 12: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E Z Z O Z Z 00000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 O O O O V 0 0 0 0 3 a u1 m w o o o ~ r - h r - b L - I - O ~ O m m m h h h m m m o 3 r - 3 0 % t - r - h ~ r - g h h m h a v 7 - F w - + - v v v V V V . - r r v 7

E 0 3 0 3 0 0 0 0 3 0 O O O O W 0 0 0 3 0 0 3 0 0 0 O O D O O 3 0 0 0 3 o a o 0 3 00300 a 2 ~ 1 3 3 3 0 3 m m 0 o m o m 0 o m h a 3 m m m o h h h " - o ~ 0 3 a m 3 a m ~ w r . 0 h h o 3 3 m N r w r N n r - - r r r - r r r r - r r w 7 i A * r Y h - c 0 in - r -.ha

E o o m m , n C O W W O D o o m 0 m a 3 0 0 0 0 0 a ~ 0 0 3 - 0 m o o 0 3 0 0 0 0 0 V O O O O a N N - - - r u ~ c n n a m = - v t - - ~ N w ! O O C J O ~ ~ M N - - r ~ o r - m 3 - a c m m r ~ m m o d r N M r r - - m TY ~ w - - - m

Z l * t Z 2 2 2 z z t Z Z Z Z 9 t Z O Z a 2 3 3 0 z Y 3 z z t Z 0 3 Z 2 32330 3 3 2 2 2 E w m Fc m a 3 00 f- l u rn r ~ m o N N ~ a v N M NVI V In V a

C- ~ ~ W R ~ W N N W N W N W N N Y N W W W Y N W ~ U ~ G N N N W N N W W N N V W I ~ P J ~ U ~ W N A ~ U W N a v v v v v v v v v v v v v v v v v v v v v v v v v v v v 3. I

9

Page 13: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

3 0 3 0 0 0 0 3 0 0 3 0 3 0 5 3 3 3 ~ 5 a n 0 0 3 O O D D ~ O U ~ O ~ a a n a o O O O D S E a m m o 0 0 0 0 0 0 30000 00000 U D O O O 5 0 0 3 5 0 0 0 0 0 0 0 0 0 0 O O O O D n - - - m n 0 3 3 0 0 ~ 0 0 0 3 0 3 0 o m o o o o s ~ O O O D o o o o o o m n o o o o o o m a r r k k r k h * . . . , . 8 * 8 l 8 8 h \ r . r k * b . * l * * * * k 8 r \ r k

I V, N W ~ I ~ I N W N W W N N N N N ~ N N W N W N N N W C U W W N P + W N - N W N ~ N N N - C A A A A A A h A h ,% A A A A A A A h A A f i A h A A A A A A

2 2 2 2 2 Z S W Z Z D 3 Z Z . Z Z t Z Z Z O Z O O O C i Z D O O W Z Z Z Z D O 3 3 0 3 0 0 2 0 E 00 VI 0 o a m o o orno o 000rna 0 3 0 a 0 - 7 - F rV ru-.- - M r r - v r * - , - - - w v a vr v v v v v v v v v I

5 0 3 0 U 5 3 - 2 0 S S O U O 03153 53333 53253 5 5 3 3 0 0 3 3 0 3 3 9 3 3 3 a 33303 o o o s o s o o o o o s ~ o o 35303 0 0 5 0 3 30333 a 0 3 0 0 Q J O D O ' P + m h h m - - ~ m + m h h m h 3 b h ~ m m r - w h l ~ m n V I M W L ~ N m m w - ~ m m m n m a r - m m ~ m 0 b I L . 3 - - L

V)

Page 14: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- C o n c e n t r a t e s - - c o n t i n u e d

L a t i t u d e L o n g i t u d e Fe-pct. R g - p c t . Ca-qqt , , T i - p c t . Mn-ppm Aq-ppm

S s S 5 s S

700 l r 0 0 0 1 r O O O 1 rOOO 1 r 0 0 0

Page 15: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

e o o o o o o o o o a z o s z z z r z r x o z r z r o t o o o o o o o o o o o o a o o a a o P C P O m o O O O O h N M N m N N m O r w N C 3 O O D P O 0 0 0 k 0 a h n m - w N O W - v v - - L n 0 m - L n m o m - F-,

I * % b %

n n r - m.- L

E 30000 0 3 0 0 0 0 0 0 0 0 0 3 0 3 0 3 3 3 0 3 O O O P 5 O r 3 O O O a 0 0 a 0 C 3 0 0 0 0 C ' J P O o m o m w r - n h m o o o o o 5 3 0 ~ 2 0 0 O h 3 a O ~ O O O o o a a 5 3 0 0 0 3 ~ 1 3 3 0 0 - 4 ? , A W b . - . - - - m N N m m N m L n O O *T- - F h7 h r N m m , m h m D M m m M N N 3 0 w . . s h

E m N m N N N W N Y N Y W W W W N N W N W N N N N Y N N W N N N N W Y Y N N N N N N W N N N P v v v V V V V V V V V V V v v v v v v v v v v V V V V V v v v v a. I t.3 U P

. , . . . U U U U U . D h 9 * 3 V1D.D.o.O 9330- J I 7 Z X z z t z z

Page 16: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00300 3 a 3 0 0 S G 3 0 0 0 0 3 3 0 03323 5 5 3 5 9 3 7 3 0 3 Q 3 3 3 C 0 0 030 E 00300 O ~ P D D a 0 0 0 0 o n o a m m n c o o o o ~ o o ~ m o s m a 0 0 0 0 o o o a o a O D O O O o ~ m o g m o m m w m m m a r - 0 0 0 ~ 0 0 0 0 3 n r k o a o u o o 03000 P , % , * % * , , . % , * * % .,., % . . % % . % \.,,. , . * * a I m W N N W N W N - w w .-.-- - P Y W r l Y N R ! w N N rU rw N N N W N N W w r u N b A A A A A h A A A A A A A A A A A A A

O O Z Z Z Z Z X Z O O Z Z Z Z o r z z z 3 Z Z Z Z Z Z Z Z O t Z 5 0 3 0 3 3 0 2 O Z Z O O E 00 0 S a 0 u, 0 0 3 U O Q D S 00 a t r C - C 7 c C V - C C F - - m N P * v V v V V V V V V v

r'\YMM"-, U U U U U U U U U U

Qhcn0.3 i- m '5- 3 U

U U U U U r W h l U V 1 C ! L ) V U L -c-+-.-

T I T = = X E O L X

Page 17: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

o o n n ~ o o o a o o o s o o o o o : : > o nonns o m n o o 0 0 3 0 0 O O ~ O P o n o o o E 0 0 0 0 Q O U O Q O 3 0 0 0 0 0 3 0 m 3 0 3 3 0 0 0 0 4 0 0 0 0 9 0 0 O O O O O C o o k - 0 n O O O D O n o k - 0 0 O C J O O C o o n 3 5 5 3 0 0 0 O C J D U O o m a u a m m u o o o a o c m a C C C 8 C > \ * * . \ 5 8 \ \ C \ . C C 8 * \ C \ 8 * \ . \ \ % C . C C C C . C C • I * O r n m W 0 v I O r N D m k - O J r u W I Q a m W 0 1 3 0 0 V l v I N M d h N r M N ( U V 1 3 0 r N 0 + .O F P c - - - C - - F C - C e- r F

m A A A A A h A A A A A h A A

E O m 3 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 3 0 S O 0 0 0 00000 O D O O D O O C J O O 30000 a O O D U O o o o m o o m 0 0 0 o a ~ o o O G ~ D O a o o o o w m o m m o o o o o o o o o o P D O O u \ 0 W N O r m h - m h m hho r -5 U I M h e h O h O O m 0 - O F - 3 3 - 0 0 3 k m 0 h I Y) C C . h C 5 l C C 8 C 8 C .. l . C

O O O U D O O Q O O o o o o a O O Q O O o c c 3 = 0 0 0 0 0 0 0 0 0 C O O n O O 3 0 0 0 0 . u o o o o aoat30 5 0 3 n ~ 2 O D U O O coo30 - G O O D 0 0 3 - u 0 3 0 0 0 o ~ a o o r c o n & + m o m h o o h ~ m m 3 0 3 3 - 0 0 3 3 0 m h ~ h ~ h m 0 3 h o w 3 0 0 O O Q ~ S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U 5 A F - f r N r W W W-r W - W N F r - r u - ~ c - - W - 7 N Y N N N - N I A A A n

C 0 U - U U U U Q U U U Q U U J U U U U Q V U U e U U J U U - U % - G U Q U J - 7 - V u - 9 Q - k - J 4 U d U U U V U U Q U U - 7 4 4 < J < - 7 - 7 - 9 e e . Z U < * e . Y - T U V e e e d 4 Q < U U 4 U U .............................................

m m m m n m m n m n m n m - q n m m ~ m M Y Y Y ~ m m q - f i m n m m m m m * w m m m m ~ q d u u u u u u u u u u u u u v u U U Y V V d u u u 3 u u u u u u u u v u U J U U V U U W U U

P v h m m o - r u ~ * r n 9 h q m 0 - w ~ . t m o % * ~ Q F Y Y U ~ a r - m m ~ c r u M u a E Y M m w l e V q d U 4 - ~ + ~ < V L P ~ S U ~ ~ I F r n m m n o Q 3 0 U U 4 U a U h hP-hkh E E g E g .............................................. m V ) x z x r r I I X = X X X X I I Z Z Z I T Z = = = T I I = X = I x I = x = r 5 X x X I l f l =

X E Z E E E E T E E E Z Z E E X X t b f Z f T E E Z E T Z Z Z Z I I f Z Z E Z Z Z r E Z r

7 -- -- 1s

Page 18: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E o o o z z 0 0 3 ~ 0 o o a o o o z o o o o o o z z O Z Z Z D o s o z z z z o o o a o t t o P * A - m o m m P - m m m m a r+ m m m m m ~m m w h ~ l m m m h rc V1 a v v - v v v v r v v V V V v v v v I m 9 Z

30000 0 3 0 3 0 30300 O S S O O 00363 0 3 0 0 0 3 0 0 3 L 3 0 3 3 3 0 d 0 0 0 0 L O U m m * DC3Dlnh m h 3 U - 3 ! n m 3 m m LnrnmrnU-3 m m ! n m h n o m r - h m o b 0 0 b m m m h 3 O r V r w r r F - c V P V V V V v v v Ln c fu r N c v n s I * * rD 2

e N N N N N N N N N N W N N W W N r U N N N N W , W W t W Z N W W " J W W W r u W N N N W W W N t N 3 v v v v v v v v V V V V V v v v v v v v v v V v v v V V V V V V V V V V V V V v a I A w 9

Page 19: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O O z Z z z Z z z Z Z t t 2 t E O O S 0 0 3 2 2 2 2 0 3 2 1 2 3 2 0 3 3 0 2 6 30223 E 903 OYIYI mOVI 00 0 Vr 030 0 00 a a ~ r t - 7 F C C F - c r r U r - m w r h V N N a "I v v * v I -

w m r n ~ q m m m n m m m m m q m m q n m n m r q m n m m - - ~ q m n m m m m m m q m m q m m m n d U L I U U U V U V W U V U U J V U J U J U V U U U Q U V U U U U U V V U U U U U V U U U U U

P 4 b - 0 3 - W m U m Q k c O P O 'Nm-Ym 9 h C o P 3 r y * U m ~ ~ L Q ~ C I - N M U n Q h W @ a h Y M Y m u j u j - ~ u - a - ~ y - ~ m n m n m f i n m n m u Q ~ Q Q * Q a U a k e ~ h h r - r - r - k L F - m 'C F C C . - , - "-,.-'- - C F C r ' C 7 - C . - C ' C - r -.-.---- - 7 r F - ' - C C - C ' C - . -

YI ~ = I = I X z f l z f = Z x = = = I = : Z = I L ~ = = = I Z X Z X T I T i S 3 I X X I I I ~ 5 2 2 ~ Z Z S E L E E Z S Z E E E E Z Z Z Z E T E Z Z S I E Z Z E I X Z Z X Z Z T Z E T

Page 20: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- C o n c e n t r a t e s - - c o n t i n u e d

S a m p l e L a t i t u d e Long i t u d e F e - P C t . 5

MH191 CJ MHlP2CJ MH193C3 M H I S 4 C 3 M H 1 9 5 C 3

Page 21: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 0 0 0 0 O O O O O Z O O a O 2 2 2 2 2 z o t z z Z Z Z O Z Z O O O O O O O O O Z Z O X O n m m m m m m m m m m z m b m m m m m m u ? m y l m a m m m P V V V V - V V N V V V V V V V V V V V r I m

E o o o o w o m o o d o o o o o a o n m O c ~ o o o m o o o o o o o o s o o o o o sognoo a o o o m n m - m n o m m m h m O - ~ F M wmruhru mom o m n ~ n o d3r-00 c h - m o a - d m P m r - C + - - - m r - N N F ,-I - 1 UI % s 0 r C

u

E W N N N N N W N N N t W W W N N W N N Y N N N N N N N N N N N N W N N N N , W N N W Y N W W N P v v v v v v v v v v v v v v V V V V V v v v v v v v v v v V V V V v v v v v v v v v v Q

Page 22: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

03535 30333 03033 0 3 0 3 3 45330 3 3 3 3 3 0 3 3 3 3 a 0 3 3 0 00,303 E O O Q O O O O O O O O W 0 0 3 0 0 0 0 - 00300 m P - 0 0 0 0 0 0 0 0 O D 0 0 0 O O O O O a O ~ O O O w o m o ~ 000-0 o m h h - ~ ~ 0 0 a r m o - b a a 0 3 0 3 3 4 0 o w o m 0 [1 - 8 8 5 . k * 5 * . . I + h 5 8 8 h \ h * \ * h L . 5 h 5 5

I m N N N N C U PJN N ' " Y N r m N N N N rY N N N N ~ r u r v r u N N W W L A A A A A A A A A A A A n n A A A h A N

23030 O ~ D D Q z o u o o o z z z z z z z o z Z Z Z ~ Z z a g 0 0 O O Z C Y O 3 3 2 0 0 e m o o 0 "-, 000 a o m o rn ~n YI ouao 00 o o 3 : ~ o o P r k N r r r r r r r r r r F - - O W N nn m - m t r h u ur V v v v v v v L v I r 3

w m n m n m q y - w m M - - I ~ M M ~ m m ? m n r n m m q q r n - n m ~ W Y - ~ M m n m m m m r n m w ~ m A U U u U u U u U U U U U W J V O U d U v u u u u u u U Q U U U U U U U U U U u U U Q u U U

n F N M U - a r - v - o ~ r u m ~ m ~ h r n m g - ~ m . r f i a b r n m a - w n u m o h m m 3 F N M U ~ L r n w a a w m m m m a m m e e e e ~ m e o s s - a 3 o u ~ o u - - - - r - + F - - w N N ~ N N

m - r t r ~ - 7 c ~ - v - - - F - ' c - c P J W N Y W Y N N % Y W W N r u N m N Y W w W N W W Y N YI X T = = Z z ~ x x x r x f r r = = 1 1 = I S = T = = Z I X = I X = Z = = I = x = x f f x ~

r E E E E Z r 5 r E P T E E I T x f l r E Z 2 2 2 Z T £ T Z h Z Z 2 3 E E 2 f E E E Z t Z

Page 23: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

C O ~ O O o = = o o o c o o c O O O D O > O ~ C I T o o c o o o o n 0 n a n 0 0 0 o o o o o E o o a m m O O O D ~ O O Z O Q o a - 0 0 a ~ > o o u o o a n u ~ o o c o a a o ~ o o o a w a a O O N - C m m h O a 0 0 0 m O O C - ? r - l n m 0 0 0 O O O O U o m m o m h O P O U , a o m m m . . . . . . . . . . . . . 0 . . . . . . * . . . * . * . . * . . * I UI - 7 r - c r n o m n n n m - m m m m m m o o a n - - - m o - r N ~ U S - V . -

- -

I n - D v v - v 0 ol P - 4

E 3 0 0 0 0 0 0 3 0 0 O D S O O 3 0 3 0 0 3 0 0 3 0 00030 O O O J D 0 0 0 0 0 3 3 3 0 0 a c o o o o o o c o ~ o o w o c o o o o o o o a c o o c m o o o w o o o O O D O D 0 0 0 0 0 P Y ~ ~ C O h m h m r - h h m t . 0 W L M O ~ r - o o o o n m r - r - m a r - w t - h 3 ~ 7 0 m 0 h m h m m

0 0 3 0 3 a o o o o n o 3 0 0 O D ~ D ~ o ~ a o o 0 0 0 0 0 o a o o o 0 0 0 3 0 U C O O ~ . 00000 0 0 G C 3 0 0 0 0 0 0 3 0 a 0 0 3 0 0 0 O O O C O 0 0 0 a a 3 0 0 3 0 O U O O O - ~ O O R D o m o o ~ o o a o q OOUCIO 0 3 0 3 9 c o o a m m o o o o s o o o o o a o s o U . . . . . . . . . I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• D 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 O P O J O 3 0 3 0 0 O W 5 0 0 3 0 0 0 0 U 3 3 3 P O O D O O O 0 0 3 0 0 O O O O D O O O O S 0 3 0 0 0 m - 0 0 0 3 0 0 3 0 0 3 0 0 0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8?V, W a h h h r r ? ~ m h @ N h h m a VIIPlhab m h m ~ c h h " l 3 Y l w r r O r r ( U h @ h S O i n Y I 3 m h

. 0 0 0 a a 0 3 q 0 3 0 0 3 3 0 3 3 a 0 3 3 3 3 0 0 q o o o o 3 3 3 n o 0 3 a o s 00933 C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u o m m h n m o m m a O ~ N W B N O ~ S - ~ N ~ r v n n w O O J O ~ h h m m m m h z ? a r - m w ~ h m P u m t rl r N v - M N r N - N I

2

v m u u m m m u m u m ~ r - e n - S - Q + S - .--me- a - t g n N . - N N + - r n a a h c m r - n m s F ,-rr-F M ~ ~ V I M n m n - - , t q n m t q u u e u ~ u - 9 n m r - 1 - m m - f i n ~ n n - ~ > r n < u u ~ u m q n n m n n m n n n n n m n n n n m m h l n m m n m m l m n w n P ? ~ v ~ n m t O q W P l m u m n n 2 Q U a a 4 a Q Q 9 9 0 Q 9 9 Q Q Q O O Q o Q w Q Q * G O * * - 0 - Q O Q Q Q Q O Q Q W Q O Q

w m m w n m ? ~ n n w i - Y - - - I ~ * ~ - ? m n w n m v m r n * m + i w W I ~ - - I - - I - m m m n v w m n m n d U U U U U U U U U U U U U U 4 " U U U U V U U U U U U U U V V U U U U U d U U U U U U U V

P C k m P D - W W U m 9 h P b 3 r N Y U m Q h X L * O W V l u m 9 hKDC%O+ W q 2 m 0 h W O o O r h N C U P - ~ W ~ r l m m m m nwnn-? - r -3-*- ru . r , . n a a r n m m m a . . ~ u w ~ ~ a . o w . ~ r - r c

Page 24: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 0 3 2 2 0 0 0 r ~ c O O O ~ O o o o a a 0 3 0 0 0 n o 0 0 0 a o o o o o o n o o o u o o o D m-r- m a 0 0 0 a 0 0 3 5 5ai~r.t. b h ~ ~ h m a o o m ~ O O O C m a a m m o m m ~ o P r r a " 3 m m m m k r m O - m h m r m - m m e r m r rwv - I YI • k k *

O J Z O O 0 0 0 3 0 0.3033 00000 0 0 5 0 0 3 0 5 0 0 DO330 33033 00003 E m a 0 0 m o o o o m m o h n m o v l o o m m o o m u ? o 3 o o m a m a o o o o o u o a o o o o

E 7 r - r - m ~ r - - - r N - - C F - r r - t ~ r t n W r N - r4Wl * C O ~ N W r 0 m 0 0 * \ % h %

o o o o a 0 0 0 3 3 3 3 0 0 5 0 0 m o 0 o o o m n o o o o o o o o a o o O O D O ~ Q ~ O O O f O O O O h h D m O O m m h D t O O r h - - - n r r m D O D O L n m m r w h 0 , - - 0 - r m - ~ m b n O h m - rc.-00 r - mrw v v .- n w m m 0 m F

P h b I u l 0 7 7 - P

3 r w

E O O O O O o C J m 3 0 0 3 0 0 3 0nhn00 m o o 0 0 0 0 0 0 0 0 0 3 0 0 0005v l 0 0 m 0 0 P ~ ~ N N N m o m o m o n m n r 0 0 - w r ~ V M ~ N o o m 0 m m m n m m N P C I O ~ O W F O ~ a "-I-- IC. N C t r C Y l A - Y l r P C N P C PVC I Y)

e U

E N W - A J N ~ N N W * m w m w r d ~ ~ N N W N N ~ U T - V W NMN--I& ~ N N ~ N N N W N W N ~ N W N a v v v v v v v v v v v v V v V V v v v v V v V n 1 m 0, 3

- . . . 4 U U U V U U U V V U U U U U U U U U U U U Q U U U " U d ' d " V V U U U U V V U " V U U U U

9 + w 0 0 r ~ m ~ m s b a m ~ c ~ n u m ~ b r n - 3 ~ t 4 4 - Q h m m ~ c r u w - m a ~ R . N N C \ * ~ n r r , r n m n n r j m e . m u m v r m m v m ~ q o u a . o r , r , u Z Z $ E E

Page 25: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

30333 c ~ a z 1 3 3 o o o ~ c i 0 0 3 a a . - O U ~ Z I o o a n o 3 o o n 3 ociaz10 0 3 ~ 3 3 E D O 0 0 D 3 3 0 0 3 D O O P 3 O D 0 0 0 0300 00300 00000 Q O O O O 0 0 0 ~ 0 P m o - ~ a O D O O O 00000 O O O O P 0300 a 0 0 0 0 O G U O O o a o a o O O U O J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q % 1 m N N N W W N N N W N N N N N N N N N N N O N W N W N N W W N N N N N r v r u N N h W N L A A A A A / \ A A A A A A h A A h N A h A A A A A A A A A A A A A A h N A

00033 00000 00000 0 3 3 0 0 00039 00000 00000 03000 ~ ~ 0 0 0 E ~ D N W I O ~ , m o a m m m o m a 0 0 ~ 1 ~ 3 m a o o o m o o r n o o o o o o o o o m n m ~ o o o P r N - r - N r r r N - N N W r c m - r r r N - r N c r r r o n h h W ? N r + r h n m O D V) I -

E c J C C l a 3 a 3 3 0 0 00000 30000 30300 O O O O O o n 0 0 u a 0 0 0 0 o o o o o P 00300 O h m m a YIbnQmm mot.mm m m m S 0 D L - 0 3 0 30000 m 3 m 0 0 O O O o q P e l N W I m m r h r-4 - ~ r r + r r t s - ~ N r -FNNYI m m W ~ W i - F P ) v - ~ M N N m W 1 %

Z T Z Z Z 32030 O O Q O O O O O O P 0 Z O z D 2 2 2 2 3 O O Z O Z 3 0 0 2 3 0 0 0 a 0 E rn NVIN h m m ~ h Y I ~ P ~ N J N 0 n N N N W hiA0 h L?rnOYIWl P C r r Ni V V YI . - - -Nr-

U U U U U , - W t ' l J r n . r . r " . a - r f r " r u r W N W I Z I f I f r z r r

Page 26: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

- - - - - - - - -

% \ b 5 . Z b Z - * . * % . . * * * \ . % 5 n h f ~ r m N F N h O P F ,- h m - m m - r w O N n

L Z O O O O X Z O Z E a 0 0 0 0 a v r m o 0 m n % * b 5 v I n PC,- r Y)

4

o o o o o "-0350 a m 0 m m o o 0033 D O o m 0 o , . . . . .zt . . Z z 9 . . I Z Z Z * * r .

m y - 0 - r - m b " m r 0 r - ~ ~ ~ C r - ~ ~ c c . -C- - - v v 0 v v v v v v

O W 0 0 0 O o O O O 3 0 0 0 3 00300 J O O O 0 D O 0 0 0 0OC330 O O D O O O D O C O o m 0 0 0 0 0 0 0 0 O O C C C 3 O O O P O G O O 0 0 V I P - 3 0 3 r L 0 0 , m m W l L - t r q n r - h r n h u 3 h " h a m & 8 0 U 3 h 3030L'l

S h . h & . * % Z C C 5 b r r r N C + V ~ C C . - r r c c

0 0 3 5 3 O O O O O . 0 0 0 0 3 O O O O O 0 0 0 0 0 00330 . . . . . . . . . . U

U * nJ,-NfUN N N N N N I A A A A A A A A

O O O O S 0 3 0 3 0 00003 D O O O O 0 0 0 0 0 O O D O O 0 0 5 0 3 m o w 0 3 m o m r u o m u 3 ~ m r . a n ~ o m utahafi k o m m m O ~ Q D D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . m 0 0 0 0 0 0 0 0 0

r omor-a O D C * O . . . . . . . . . . U aur r ru P - - n I m s

U m m h a m r " 3 N h Q 3 v n m - ~ u m ~ m

Page 27: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

X Z X J 3 I 3 I X 5 3 x 2 3 3 Z P X I T 5 1 3 3 X 3 3 f X f 3 X I X X 3 z Z Z I P 3 3 1 3 I Z I L X X Z I I X z = x = = ZIIIZ = = = = I r x = = r = I I I I I - I X L ' X X f l Ln L Y , - C u I . , h W u L , . l r Y L - i W I , , , , , , r , , , L , A W P . , h , N NLNP,R . N r " " _ P u N NT \JNNk N N N h N N k N N W P

m m

V) I P

A A A A A A A A A A A A A A A A A A A A A A A A A h A A A P ~ J N N N N N N N N N W N N N N N N N N N N N N W W WN'24-4r.4 t n N h W n J N m W k N N N W N N 3

P A A t

N N N W z z z z z z z z z z z z z a z z z z z r r z a t t z c z z c z c z z t zzztz z o z t z

- - - . - . - -. - N N W A Ll A 4 J W W N W .A A ~ - N D C W w W P W O W 0 %

W W W W N N - A L M - U O W C O - 0 w w - 4 4 W C N O 0 0 0 - 4 0 0 0 0 0 0 C O O O O C O G O W U O O ~ O O a w w o w O G O O O ~ O D O O w o a c o o o c c o c c o o a o o o o o o o c o o 3

5 9 u A A A A h A - A h A h A - A 442 N N A h J W A A W W - 2 A N A A - 4 N - O U 7

w o w w V lwmv7w W 0 W " W v r w w 0 0 U l w o - J o O C O C W O C O O O . n o V I w w w o V I o 0 3 z o o o n o o o o a o o o o o o c o o a o o c o c o a o o o o c c o a a c c o c c c w o c

V) l A A A A A A 4 - N A A - h A d - 4 A N D

-4 w VI w-4 w ~ o o o U W O W ~ ~ n m w v t m - l u - ~ w O O C O w O V Z Z O O Z Z Z Z h r Z O Z t Z Z t Z O O O O O O C 0 0 0 0 0 O O O O O 0 0 0 Q 0 C O O O O 3

N A N A w w w w w W N N ~ I A W I A W W xnW-4m- u o V ~ N w v W C N N N N U ~ C w c o c w C C O Y O - J O C > D W n o n o o o o c o o D o z a a z z z = o m W O O G O z o o o m U O Q C C c o c o c O O C Y C J D o a o o o o o o o o 3

Page 28: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

Z O O O O Z t O l Z O Z Z Z Z Z I C 3 Z Z O t Z Z Z Z t Z Z Z t Z t W ~ z z z z z Z Z Z Z t E = a 0 0 00 0 3 0 0 P VIVIYIYI mLII V) m YI h a v v v v v v v I n

O W 0 0 0 U S 0 3 0 0 0 0 ~ 0 O O o d O o O O D 0 O O O O D W O O 0 0 O O S O O 0 0 0 0 0 E a o o m m o o m m m o o o o h o o a m n o o o a o a c n w ~ D N N ~ W ~ ~ F D M M w t - m m ~ a b h W % - - W W - r r - r N W - N r r N N V C ~ F c - V r V n "I I

E 3 0 0 3 0 0 0 0 0 3 w 0 0 0 0 33300 3 0 0 0 0 O W C 3 O D O C O U C Y O O 3 C O 00030 P o w l m o m w m m o m O O O O W 00000 U O D O O U IhOYIV I D C r n r n Y I 0 m w 3 0 O O O O O Q * V I C - r - c r r r r -Nn"-,n m l m N r W M N ~ N N c w r - P U K 9 - v - s - m + N . w N N M V l m N I CY"

Page 29: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- Concentrates--continued

S a m p l e L a t i t u d e L o n g i t u d e Fe-pc t . R g - p c t . Ca-dot. , T i - p c t . Mn-ppm Ag-ppm As-ppm Au-ppm

5 s S 5 S s s s

Page 30: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E a t 0 0 0 t o n 0 0 o r r z t z x o z z z n O o o n r z o u 3 s z z o o o o o a o o o o o a n ~ 3 f u N ~ * J ~ . N N N rwh iwh l hl hlhl N Y ru b m m n m m r u ~ m o Q V N V V V V V V V V V V V F rn

0 1 3 0 0 c Y 3 0 0 D O O O O O 0 3 0 V I 0 0 0 3 0 0 0 3 0 0 3 0 0 0 0 0 0 5 0 0 0 D o o m 0 E O V l a 0 0 N h O O m h k - h m h m O N y N N W N N N h O m P 7 N V l h V I N O O O V I N O 3 a O m 0 a a - m m h .-nr - - c 7 7 N P r-YI n h < 1 L . l t M 2 U

a 0 0 0 0 O O O D O 0 m n L n m m m m o m "- .marno 0 0 0 0 9 00000 a o c w o O O O O O O M O O m M N h c n m r - r - - r - c r ~ r r w r n M ~ N m r u mw3WlNh O m m + h m M m m D r. C F - hl 7 -

I " 0 U

E N N W N N N T V w N W T U N h l N y N h l N w N N N T Y N N NrUn4nJN N W N J W N N W N : U N N N F I W N p v v v v v v v v v v v v v v v v v v v v v v v V V V V V V V V V V v v v v v v v v 0 I fl U P

w +-,mnwm-, m q m m n q m m m n n m m m m r n m m q n M Y M Y + ? m n m m m m ~ m m m m n n n m d u u u u u U U V U U U U U U U u u u u u V U U V U U U ' A V U U U V U Y U U U U " U V U U U

P h m - a r w m q t ~ \ - o r c r n * ~ , m u m a r . Z V O - W w--51n.orc cut-c-ru ~ n u r n q r c m m m - E r - r ~ n . Y N N N ~ U r y ~ r y m v l +?rq*1mv l m r n t . r a u q e q c u q m m m m m m m m m r n f l ~ ~ B W ~ M M M m n Y n m * , M v l m m m ~ m n n m m ~ q n m * 4 n m v 1 Y m m n n n n - 7 n ~ 6 f l T - l m Z Z X f Z ' I T X Z = s z x x I x = = x = = T = I = J = = ' r x I I Z I X I f l f Z X ~ X I X

r r r z ~ z r z a r z s z r r E E Z E Z Z I I Z ~ r r f z r z r z r r z s z r r E X E E E

P-- 28

Page 31: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

D O O ~ Q 3 3 0 0 0 a a o o o 3 0 3 3 0 0 3 3 0 3 ij.a'J33 03390 9 3 D - 3 33305 E h 3 3 0 0 0 0 3 0 3 0 0 0 o m 0 3 0 3 0 O O O S O o h 0 0 3 3 3 m 5 0 0 0 0 0 5 N U 3 0 0 P - - + N o h 0 0 0 o m n 7 a m m o o O U M N W I - cnrv rwn o m ornono u l m o m

% , * b . * , b * b . * , * b P l M nJ N N N N - - rum .-N - hl PJ N N C A A A A A A A A A A A

m M ~ n n m r l w l m m m Y Y ~ Y ~ rnr?Yq+o Y Y ~ Y ~ m r n q - 9 * - ? m r n m h7mmmrn m Y n Y W d U U U U U U U U U d U U V V U V U d V U V V U U U L J V U U U U U U U U U U U U U U V - d u

n b c 0 3 0 ~ ~ n u m ~ h , G m o - m e m a r - r n - 9 - w m u n a b x p ~ r r d r u m u m Q r - - s D U - r - - 7 ~ ~ N W ' U N N - . J ' U Y W ) W ~ m l ~ l ~ ~ . r 5 < < < < < 4 7 ~ L 1 & ? - L ~ ~ ? J I d m m o * M M V ~ ~ P - I n ~ m m ~ m m m m w n - n m m q --l--!ymn m m n n n MY MY^ ~ w l m m m w l - 7 . m - n

Y) X I X I S I Z I 3 = l L Z r I ZZIII I z = l Z f I Z f Z . X Z = X X IIl=f f l f ' z r T T Z Z E E E E % Z 5 f S E Z f L Z T Z E r E Z Z E Z X Z X E Z Z E E Z Z E S E E Z E Z X

Page 32: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 33: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

N N N N Z N N f i N N N N N W N W f U U I N N W N N W N R v N f W N W v v v v v v v v v v v v v v v v v v v v v v v v v v E r u N N W N N N N N W N N N W N

n v v v v v V V V V V V V V V V P I w m

Page 34: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 3 0 0 0 03000 03035 00350 3 0 3 0 0 o a 3 3 3 a 0 3 5 0 3 3 0 0 0 O O Q O Z 3 E O w O t n ~ 00000 03000 o o m a 0 00300 O O Q o O O O W O O O O O P O 00030 O O 0 N h M h m N l k u 7 & 0 0 O m - O * L O 0 0 0 O P O O O 0 0 A 0 0 O D O O O 0 0 0 3 0 P l 5 . \ b . . . . * b 5 k . k . * . * . . \ . . . . . , % * I * N - r hlN N N N m N N W N W f U N N W N N N N N N W m N N N N C A A A h h A h A A f i ~ h A A A h h A h A A A A A

0 0 0 0 3 00030 Q O O O O 30030 00000 03000 0 5 D 0 0 03000 3c300O E v ,NkMl . NlhrnrUW m m m m b l D h m m M h R 0 0 3 O O O O O O U O O S O D 0 0 0 3 0 0 0 3 CL a- + M m M W m m V I m ~ u 7 F I r W M ~ N N F - N m m m h

Y+-,"-,r.l+3 U U U U U w r n d m a

Page 35: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

Cat itude L o n y i t u d t F e - p e t . s

Ca -pc t . , 5

7 -00 1 0 . 0 0 5 .oil 2.00

111.00

7.00 1U.00 1Lt.00

. 3 0 5.00

10.00 5 . UU 7.00

t o - o n 3.00

. 7 0 2.00 2.00

. 3 0

.50

. 2 0 .so

2.UO 1O.UO

5.00

' Ml1424C3 H H 4 2 5 C 3 a RH426C3 u MHL27C3 M H L 28i3 F t H L 29C 3 MHt, 3UC3 MH4 3 1 C3

MH447C3 6 3 2.5 35 1 4 4 4 1 75 5.0 5.00 lD.00 3.000 7 00 30.0 1 r 0 0 0 N 200 l 5 r j MH468C3 6 3 2 7 5 2 1 4 4 4 0 29 5.0 1.OU 5.00 2. OFO 700 1.b N N 2 UO I r U P i J M H 4 k 9 C 3 6 3 2 7 38 144 3 S 46 3.0 .70 3 . 0 6 >2.0110 S O U H N N l r U U 3 300 MH45UC3 0 3 2 6 5 3 144 3 6 7 1 0 . 0 . 3 0 5.00 >Z.O@O S O U t .U < 5 0 0 N 200 f ,OCG M H 4 5 1 C 3 6 3 Lb 5 7 144 3 7 4 8 3 . ll .70 7.0U 1 . S O U 7DL1 c t . 0 N N 2 ~ 3 509

33

Page 36: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 0 0 0 0 0 0 0 0 2 Z O O 0 0 0 0 0 0 0 0 0 0 0 0 00030 0 0 0 0 0 0 0 2 0 0 O U D O O O h O m h O b h m h o m r - h m r - h m r - h t n m m o o m m o m o b m h h h h w m h h m h m P h l V - ..- N + V V C - - 1 1 0

E O O O O D a m 0 0 0 0 0 m 0 0 O O O O ~ o o o o o o o o o a 3 0 3 0 0 Y W D O D 0 ~ 0 0 0 a . - - - o r h - r 3 n N N - k 0 o m L - s o 0 o a o n n r n - h 3 0 0 3 0 G m O m N C n O h r O 3 N P - F rV m - - h l w r r - mwl - N ~ N V - N,- n - PY

E N N w N W W N N W N N N N t 4 W Y N N N N N N w m r u W W N N W N W N N Y ~ m w r u m 2 ~ 0 n w 3 v v v v v V V V V V V V V V V v v v v v v v v v v v v m m a 1 YI U P

w n n m n m n m m n m n m n m m m - ~ n n n m ? + m m m m v ~ m r 4 m m M n m m r n v r n m m m m m m m A U V U U Y U U U U U U U U U V V U V V V U V u u U U U V U U U U U U V U r . A U V U J J Y V U

3 h m m o . - W Y U J - ~ ha t rc~ - W Y G ~ G h u - 3 - r d n u u - a r--rn@n- w v . r m o r - 0 3 - o - L ~ U L ~ V - - r - . - r - F C Y ~ W ~ W Y N r u r u r ~ . q m n m - l n m ~ n m n . r r < t a ~ * d ~ u u m m

Page 37: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

m m m m m m ~ ~ Y M Y m m ~ ~ m m n l ~ m m Y I ~ Y . C ~ W M ~ M ~ W I ~ Y M P O V I m m m m m d U U V U U U U U U Y V U U V U U U U U U V3U',,,., U U U U U U U U U U U U U U U U U V U U

Q h m e a - ~ n u m u htr3O.a.- N ~ J ~ O r k m c " 3 - r d m u Y r 4 r .wU.12 - N m u m a t - = - O r e O U Q Y - P C - - - , - - y r v r w N C L N V N w r u r . ~ r + q n i . ~ ~ q r l r i * ? m r s ) < + ~ e - ~ r ~ e U ~ J ~ V I m U U U U V d d e u e U U V - 3 - l 2 u d < * U - Y q . 3 u v v J - - f 3 4 d ~ V < U U < - S Q - Y U * *

I I X f f X f T X ' I I S = I =zZzI r I x I = I I Z Z X = x I = I = r x x = = x z = x r r r r z z r z x z r r r z z r z ~ r r z z z z z Z T E Z Z E Z Z Z Z Z Z E Z Z Z Z P Z T

-- - 1 > ' 7 -- ? 35

Page 38: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

S a m p l e

l4H4 5 2 C 3 M H 4 5 3 C 3 M H 4 5 4 C J M H 4 5 5 C 3 P1H4 5 6 C 3

I.IH4 57C3 1.1H4 5 8 C 3 M H 4 5 9 C 3 M t l 4 b O C 3 VIHG61 C3

R H 4 o Z C J M H 4 6 3 C 3 M l l 4 t 4 C 3 M H 4 6 5 C 3 M H C b b C 3

1 :;: :::: 1 M H 4 k 9 C 3 I 14144 70c3

K l l i 7 1 C 3 * :a 3 M H 4 7 2 C 3

M t l 4 7 3 1 3 Mi l4 7 4 C 3 M l l 4 7 5 C 3 M h L 76C3

M l 1 4 7 7 E 3 F l t i 4 7 8 C 3 M H 4 7 P C 3 P H 4 8 L i C 3 E I H 4 8 l C 3

R t I 4 R 2 C3 M H L E 3 C 3 M H 4 8 4 C 3 M H 4 3 5 L 3 M H G d b C 3

~ 1 1 4 8 7 ~ 3 M l l 4 t l S C 3 M U & 8 9 C 3 M N L Y O C 3 M t 1 4 9 1 C 3

E I l b F 2 C 3 FlHh113CJ MH4MC3 M l l L V 5 C 3 M H L V 6 C 5

T a b l e 1 --

L a t i t u d e L o n g i t u d e F e - p c t . H g - p c t . s s

--,

h

I -

F'.

$;

Page 39: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 0 0 0 0 0 0 0 0 0 Z O Z O O 0 0 0 0 0 O O O O I 0 0 2 2 0 Z Z Z O O 0 0 0 0 0 O Z Z Z Z n o m h UI m h r - r - h o m m m m o m 0 r - m rnsnv r v l h m P r v r - V v N - V V V - V V P V v v -

o o a o o 0 0 0 0 0 o o a o o 00330 0 0 3 5 3 O O O O O 30000 0 0 0 5 0 3 3 3 0 0 E 0 0 m o r - m o o 0 0 P . 3 m m 0 O h O L ? 0 h h h O h b 3 L n h D h h m o u 0 0 0 0 0 0 0 0 r - u l 5 p c - c r - - r - r r - -- r C , - - N c - 0 % 3 h O D h POLn -

k b k * b b

E 0 0 0 0 m 00030 0 0 0 0 0 0 D O O " m o o 0 0 O P O O O m 3 m 3 0 0 3 0 0 0 0 0 0 0 0 a m h m o ~ o o m o o m m o m m & r - o - - - m n a o ~ F ~ N N r ~ - o o O - O ~ O a a o m f i P - - MCn r N P - r r r y r m h-, N *? mw.-

2 3 3 3 0 z Z Z Z Z t t z Z Z Z Z t Z Z Z Z Z O O Z Z Z L Z Z Z Z O Z a 5 U O . T Z O Q Z Z E WrUhlhl W ' n n) W c I N r - M N -1 V V V V V r V 0 d *

E N N W N W N W N W N Y - N M Y tUCUNNW WW.WOJN N N N N N N W N N C U W W N N N NJWfW,W n v v v v v v v V v v V V V V V v v v v v V V V V V V V V V V v v v v v n v v P 1 n

m m m m q m m n m m * m m h - , m m n m w . m m m m m m m n m n n q m m n m m n r o n - m n m m m d U U V U U U U U V U U V V U U U U U U U : > u u u u V U U U U u u u u u U U U U U U U V U U U N m U m a h W - 0 - W m e f i Q % = - O C , A J ~ - U ~ Q h a - 3 - N M U m 3 h C U - 3 - W m U W a E Cnmnmk-7 m " , r , 4 0 a 0 4 4 3 w w a r . r . r - r . - r . -h - - r - l . h = U Y J Y J r n W W W - J Y Y C ? * P W P P P

J U U V * U u U U U W z u U - 3 f . 7 - g - Y ~ ~ v . r q u - 3 u v ~ u - 3 % * U e Y u U u u U G U - U W X f I I Z Z I T T I T A X X I - Z L = = - - I = = T = = = = = I X = X Z I I X z I = X X I

E I Z z Z f T E T Z E R Z Z T E f E f I T f E z Z Z Z C E Z P Z L f E P Z I E c Z Z E r %

Page 40: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O r , C 3 0 0 0 3 a 3 aoo(30 0 3 3 3 3 017330 00300 D O 3 0 0 3 0 0 a o C3'3330 E 0 0 3 n 0 C D C 3 O O 30000 O P d 3 O 0 0 3 0 0 03000 3 D O O D 00000 00003 p 00000 0 " Q r n V l nh-hl-l m u 0 3 0 0 0 m 0 m N o m o m 0 P J - 3 0 O O O O U 0 0 0 m 0 n % s t . \ t * * * % . . * r * % . . \ 8 t % , . 8 C t I 8 t . t t I V) W N N N N W - N C - F N N N F N W N - * + * F N W N N W N N W N N N L A A A A A A A A h . A A A A A A A A A A A A w

Page 41: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- C o n c e n t r a t e s - - c o n t i n u e d

S a m p l e L a t i t u d e L o n g i t u d e F e - p c t . Mg-pc t . Ca-bt t . , . T i - p c t . Mn-ppm Ag-ppm A S - P P ~ * U - P P ~ B - P u ~ Ba-ppm

S s 5 s 9 S 5 5 S 5

MH4Y7C3 NHLF8C3 M H L 99C 3 HH5COCJ I4 t i 5 ij 1 C 3

- 3 0 0 .500

2.000 1 .500 f .(loo

1.500 1 .OUO 1 .500 1.500

- 5 0 0

1 .on0 > 2 .OOU

.700 - 3 20 . 3 U O

. 500 1,000

- 3 0 0 >2.000

1 . 5 0 0

>Z.OOD >2.000

. 30u > 2 . U O D

1.000

> 2 .on0 >2.000 >2 .U@D >2.000 >2,000

> 2 .DO0 > 2 .000 > 2 .UOU > 2.000 > 2 .OOU

.50U . SCO

.300 1 .OGO 1.500

2.00U 1.500 1.500 2 .UOO 1.50@

t r O O O t r UOO

700 7 00 500

l r O O O 1rOOO 1 r 500 I rSOO S r 000

2 I 000 1 r o o 0 11500 2rooo 1 # 500

11500 11000 l r O 0 0

500 200

700 7 00

l r 0 0 0 700

11000

200 700 700 700 500

S D O 500 3 00 500 200

7 00 l r O O O

50G 700

t r 0 0 0

700 500 300 700 500

M H S 16C3 I.

N 3G0 N 300 N 3 l h l N SOU N 150

7,000 21090 I r S O O 380c0

1 or G O O

Page 42: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 43: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 ~ 0 3 33040 a 0 9 0 0 5 5 5 0 3 a m 2 0 3 O O J J O o a 3 a o 50330 a 0 0 3 0 E o o o o o o o o o o 00000 C J ~ ~ O ~ J 0 0 - 0 3 o o a o a o o o s o O ~ N ~ O o a o o o a ~ W O O ~ ~ ~ O O O O O + O Y I o ~ o n o 0 0 m n k o a o m ~ O O Q ~ C m M 00030 0 b b S S b % 5 a b . k * . \ C < b % * * * % b * k * 8 % % \

I N N N N W N N N N N W N N N N N N N N F - N N N N C N w N ~ 3 - N C A A A A A A A A A l l A A A h A A A h A 4 A hl

2 2 0 3 0 WZZZZ Z Z Z t 3 Z O Z O D Z t Z t Z O Z T Z Z Z Z Z Z Z 2 2 2 3 2 Z Z 2 0 3 E W O O 0 0 0 0 0 0 a 0 3 ZL ~ Y I V I ~n L YI v r m n YI F- VI a v v V I v V t r

N

z o z z o P O O Z Z Z ~ C J Z Z zzzzz zzozz t z z r o ztztz z r z z z z z z z z E 0 0 * O W rn 0 0 0 P r r C P r C P C - a n v v v v v I

+ ;3335Cl 5 5 5 3 a O Z Y J I 3 3 0 9 3 5 ' 3 3 3 3 0 3 S S O i 2 5 a 0 3 3 3 03330 3 0 3 3 3 E 0 0 0 3 3 3 P 3 J P 3 3 0 0 5 33330 0 5 3 3 0 3 3 3 0 5 5 0 0 0 3 39303 ,30033 P 3 3 r n 0 C ) t n o m m N Y h m r - l m m " - , O w W W r V h r u O N N N N r n N N N N N O T h h O N N C ) r u M a * * * 5 * v v v V * v v v V V V v * * I n -- - c - fW c - - P

m m n n n m m - m m - r n m Y m Y ~ W V W I Y m m m m m m m m m w m m m - r r n ~ r n m ~ ~ ~ W I ~ W I A u u u u u U U U V U " U U V U W V U U " U U U U V V V V U U " " U Y " U V U U U U U V ~ Y P hD0 .0 . - m J m u m 9 h U J @ 0 - N m u m c r - n m r b : > C l . - W Y J r n G h r n D D F N Y * L n a r - m m E C % P @ O O 0 3 0 7 ~ 3 u 3 r - ~ ~ r - 7 - - r e - N N Y N N Y W W ~ W - v , c , q n w l v ~ m M r n

Page 44: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

~ O O O O ~ c o a w 0 0 0 0 3 o c o o o 0 9 0 0 3 U ~ D D O o o o o o o o o o o o a = o o E 0 o a 3 o o o o u o o a o a o O O G D O O O O O ~ o a o a a D O C O O c o o o o o o a o a a D O O O O W ~ O D O D O S O O ~ ~ 3 3 0 D O Q O O 0 0 0 0 m ~ O O O O ~ O O O R m o m r - m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P h * * . * . . I n O m O m h r N h l m H l O O O M O o m n w m m m h h O C n d L n r m - b m m r n m v-rn

O U 0 3 a O O D ~ O 5 0 0 3 0 5 0 3 0 0 09305 o o o n o m o o n 7 P Q ~ ~ D 00003 E O W 3 0 h 3 m t - 0 0 3 w m 0 0 3mmr .3 m m n o n mZa'.-l33 o m m m s a g a r - 0 S O D 0 3 P + m r +-n N-.-.-- N r n - - - m n - F w m - r m mwi - I- m m m b m P L

E D S D m O m a a m 0 a 0 0 0 0 0 3 a 3 3 0 3 0 0 0 u - 0 0 O003i2 a m 0 0 3 o m 30 . . . . . . . . . . . . . . . . . . . . . . . . 5 . a * . = Z . . . . . . . . . . . . z . * C 0 - m - N v r m - ~ w ~ n r o r u m r h m F ~ ~ C N r n - 0 . - P ~ C - C ~ P N - Y r r P P

I U I - V r V N v v - V V V v v v v V m a

E O O O O ~ 00000 a u o o ~ 00300 a 0 0 0 0 o o o a p o o o o a a 0 0 0 9 o o o o u P O O O O ~ o o o o o D = D ~ O o o o o o 0 3 0 0 0 o c o o o O O D W S o o o o o G O O O O O n m W W > h W h m h h h ~ p m ~ O h h a * w m h L P - m h m h 0 I L m m - h L m r u h h h h h h h

0 0 0 0 0 O O O D O O O O G O 0 0 0 0 0 O O O C O C 0 0 0 O . 0 0 0 0 3 O O O ~ Q D 3 C O Q 0 3 3 3 0 0 0 0 3 0 0 5 3 0 0 r m m m o m 0 3 0 5 m a m - 0 0 5 3 0 3 0 R 0 0 0 0 O U 3 0 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L Q

3 0 0 0 0 3 0 3 0 G 00030 O G 3 0 3 C C O O O C 3 3 0 3 ' m o o m m - a m 3 3 0 3 3 a o - . . . . . . . . . . . . . . . .-NrV.- , - . -NrN\?u N N N N N

A h A A A h

N PC

rn .-CFn,.- N N N N P NC N N F N N C r u N W N N .-nlFN.- h h A h A A

. 0oC.oo o o o o o 0 0 0 0 3 0 3 0 3 0 0 0 0 0 0 0 3 0 0 0 - m o a o o m o a a m O O O D W o a o o m m h o m o O J O C D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F N - N m r 0 - m ~ ~ F ~ V C m h N r U r w nl r r l A l h N 3

I - - ID U

. 0 3 0 P O O O O O O . 3 S O O O 0 3 0 3 3 0 0 0 3 3 3 3 0 0 0 n o 3 0 0 5 3 3 0 0 O O O O O v m b n n m m m s o o m o r n o m m 03lhh0 n h n m h m 3 h b 0 0 3 m N m m h m O m o D m h G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U a m r r N-N. - - N W I N S - - + r VI N C h C - - Y)

I 0, E

I 000,3*? 0 0 3 0 0 0 3 3 3 3 0 0 0 3 0 0 3 0 0 0 O S O d O O O C O O 0 3 3 0 0 03333 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CI I .

u a 0 3 0 0 m n o o r - m o m 0 3 o a m ~ r - 0 0 0 o h o h a o n m o m = ? - h o o a m m r - w h n O R N + - W N - C -r C N N m C - C N m-rVv+ P N w N-"l m m r I

2 U 4 d - Y r fJWUU u u u u u U J - J U U r r - w r r r - c c

N U P V I " N U VIM

r v - m o m u n n u - u

m m m m m m m n m n m m n m m m m m n m n m m m m - 7 r n m m w m - n n m w m - l m m m n m n U U V U U " U U U " u u y u u u r 2 u " u " U V U " U U U U U U U U U U " V U U U V U U U U

O P ~ , ~ U m a h p m ? > - r u n u m ~ h r n - a - w ~ e m ~ h m ~ o r m r r l u L - Q L ~ P o - f l n u U U e U * d . 7 u - u m m m r s m A ~ ~ m b A m a a o ~ w W Q Q ~ U ~ P - L I % W h h h P - W W W W Y

Page 45: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E C O Q O ~ J O O O O o5nc io o o o o o 0 0 3 0 0 o o o o n o o p o o o a o v o nnnuo a a o o o o o m o o m c o m a 0 o h o o o o c o o a o h a o m a o m m m m o o m o o o m m o P h ~ r - n m M mrw- m m - ~ m M 0mw3 m a D W h h un n m - F - N ~ - N v + - ~ c . - - 1 1 1 1 . \ b b %

E D O 0 0 0 O O O O O 0 0 0 0 0 0 o o n o 0 0 0 0 0 00000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 W h m h m * o m m m mmmr.,. m k n m m m m h h m m m m m h m m m h m r - l " O m m h O O W L h a - v v - v v v V V - - " 1 "l

a 0 0 3 3 0 0 0 3 0 0 0 0 3 0 0 3 3 0 0 O O O O O a 3 5 0 0 0 0 3 0 3 00000 O O O O O " - r n O * C 3 0 m 0 0 m 3 5 m m 0 0 3 0 0 0 0 0 a m O O h 3 4 . n t .0n t .m m 0 0 3 m 0 3 0 3 m z . -FN"-N N,-,-NN Pfu.-.-.- N " N F N P,NruMC r F N - N - r . - N W F . - ,-.-hN.-

!a

o o o o o 3 0 0 0 ~ C O C Y ~ ~ O W D ~ O m o o o o oz isuo o o o o o 0 0 0 3 0 O O ~ O O E 3 0 0 3 3 O W O O * 3 0 m 0 C 0 3 0 C J m O C O O O 5 5 0 m 0 m 0 m O C h O P m O O h O O h a k m O m m N m r r ~ O F O O 3 r h G r O h D w m &rut--- - ~ r a ~ m h r - N - 7

a % % * % % \ s I * - - f u r - c + C

J U

,* E = 0 0 0 0 O O o a P 3(33=33 00000 5 3 3 5 3 93003 0 0 0 0 O 0 0 a 0 3 OC3005 '- P . n o m m m 0 0 0 0 0 0 m o m L l O J O O O 0 m a m m m a m a 0 0 3 0 b 5 0 0 u - 3 9 0 03cl00

- 0 - r r M m n n m m r m - c L m W i - N - - m r r r f w - W 3 3 m ~ I-? m m r 3 b l + m + m m I Y I b % % \ \

- - C F N - U

E N M N W . W N W W N N W N Y W W N W N N m W N N N V W W N W Y N W W N W N W N Y N Y N Y N N n v v v v v v v v v V v v v v v v V V V V v v v 3 I n U 9

d U U U V U U U V U U U U J V V U U U V U V U U U U U U U U U V U U U U V $ d U U U U U U U U

0 O - N M - m g t ~ m m 3 r w - v ~ ~ Q L D P 3 . - ~ - 7 . 7 W Q ~ ~ P 3 - ~ b - - U-G-UYC- o - w f . - , u E J U Q . - ~ ~ f . y . ~ < f i ~ s m m t n m r n ~ a a ~ O ~ Q Q w d a a a t -hhr-b r - r - r - r - z m w w w m m YI

Page 46: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

33300 3 0 0 0 3 O O O D O 13503 03300 o a o a o ~ o u o a 30003 00035 E 00000 00000 00300 00300 3 0 0 P W O U O P O 0 3 0 0 0 D O D O 0 00000 0 l c O O O h 3 m O h W 00000 O m O m c ~ m O W 1 3 m m r J m 0 rrlnmrnk D Z O + m 00030 a 8 • 8 8 \ 5 8 t 8 8 . 8 5 \ \ \ 8 * \ 8 8 \ 8 \ \ 8 8 8 8 8 8 8

l m r u w ~ N.-- PJ r y w ~ r u r y N N PJ W - N ~ N - r~ - r - w N - N N N N N L A A A A A A A A A A A A A A A A A

3 0 5 0 0 W O O 0 0 Ci00a0 O m 0 0 0 3 5 C O a O O O O D 00003 O C O S O 0 0 0 0 3 e 0 m 3 m l n f i c o o m o a k m a m o a h o o m o m * O R m l n o % o m o m m 3 m o m 3 m 0 0 0 a r r N - - c r - r rh l r r r r r N r r N r r r - F P - V F v N ~ ~ c N c V I N C

Page 47: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- C o n c c n t r d t e s - - c o n t i n u e d

L a t i t u d e L u n t j i t u d e r e - p c t . M y - P C t . C a - q ~ t . , T i-PC t . M n - P P ~ Ag-ppm AS-PPm Au-IJpm R - I J P ~

5 s S 5 S s s S s

1.uoo >Z.ODL!

1 .so0 >Z.OUO

1.500

1 .so0 1 .SO0

> 2 . UOO >2.(1UO >2.000

2 00 5 00 500 7 0 0 700

500 l r U O O 1 r UOO l r O 0 0

500

1,000 303

1 #OD3 T O O

l r 0 O O

Page 48: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00000 w o o o o n o o a a 00030 o o o o o o o o o o o e o o o o z o z r o o o o o E h b m m m m m m m m m m o h m , , , * r n r n h O h m L m m m h m h m,.P-mk-! D bn m m h r c h

n v v v r - V " N F

I VI

m u 3 0 0 o o w 0 0 6 0 0 3 0 0 0 3 3 0 . - 3 N 0 0 30300 O h h 3 0 D M O O O o o n m w h n r u h nc m ~ m - b 8 5 .- .- r

m o e o o o o ooo ooooo o m c o o r O w b O 000i-0 3 m t - 0 0 0 - 0 0 b

M .- ~ W M N n n b h rww

N r n W f w N N W N M N n J N W N W N N N W N N m n w N v v v v v v v v v v N N W N N N N W W N P J N N r n W N N M W N

v v v v v v v v v v v

m m m n n m ~ m r n n n - - ~ m u m m n m m r n m m m r n m U U U U U U U V V U " U U V U U U U U U U U U U U m * h m p O.-rVt.-,J m Q h P 0 .-NM.-m O h m e 0 0 0 0 0 a c - - - - .----w w ~ ~ ~ ~ , ~ r ~ w w r w m

M M W M n R W I M M M m l M M M m f ' l m W ? M U U U U U U V U U U U Q U U U " U U U U b n Q h C 0 - O - N n U m Q b m m 0 c f W W . S w w ~ w c o ~ P P W * > ' > D @ P 03U3:J m m u , m m L-,u,mmm m o m o m a a a Q ' 0 x I = I I I = T J X = S = I T i x l I = E Z Z Z Z Z E S E E Z 5 Z 2 2 Z Z Z Z E

--

Page 49: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 0 5 3 00900 0 0 3 3 5 0 3 9 3 0 3 3 3 0 3 0 0 3 5 3 00000 S O O O S oooao E 03000 0 0 0 0 0 O O O O O 00030 00000 0 5 0 3 0 0 0 0 0 0 0 3 0 0 U 0 0 0 0 3 n o m o n o o c o o n c o o 3 0 0 3 0 o a o o c o n m o u a o o m v t h a a s o = 3 o o o o o L l , , * ,,,., ,,,,, ,.,,, , * , b , .,,., .,, . .\,., , b , * b I u l N " N N N N N N N N N n , N N N N N r Y N N V r U N N -NIV-N N,-.- N r U N N . - W N N N N Y L A A A A h A A A A A A A h A A A A A A A A A A hl

C 3 3 0 0 0 0 0 0 0 0000Q O O O O O 0 0 5 0 0 U U O O O 0 0 3 0 0 0 0 3 0 0 O O O O O E m m o o u , h D O m v t O r n " 7 h O m 0 m 0 0 0 3 " 7 " 7 0 O m m o o m a m t . 0 003r-L v I r n " 7 h 3 a N - - - r r - - r r r - r u v i ~ - - - - - r r r - r r h W r F F r r - 0 m

z 0 3 t z Z Z Z O Z Z O Z Z t Z O t 2 3 0 3 0 z z Z Z Z Z Z I Z Z L Z 2 3 Z Z Z D J O = ' Z E " 7 0 a 0 0 9 000 S 0000 a - P P F F h r-C P r - r V - n m V v v v V V V v I 3

- 0 3 3 3 0 Z O O D J ;3:3003 0 3 0 0 3 3 3 0 0 3 133333 D O S ' 3 0 30333 3 0 5 0 5 - E D U W O S 3 0 0 3 3 0 0 0 0 0 5 a 3 3 0 3 0 3 0 5 0 0 a 5 3 0 0 3 0 3 0 5 2 5 0 0 3 0 3

N N W N N Y ~ ~ N M ~ Z Y N N ~ W ~ W Y Y w m ~ m n ~ u l z o ~ w m ~ h m ~ W V I Y ~ 0 s v v v v v I . V v v v v v 5 , v * v I V I - r - P 7 - - L V)

m m * m m U U U U U

m r D t . m p lo UJ P (q ul m m m in in = r x r x r E t f r

m w m r r l m " " U U U

n m m m m m * ? m m m U U U J U U U d _ ) U U

m"-,mm*l U U U U U o . - m . ~ m - - - - - r . -

C i a 3 9 4 I Z I f = - A T z x P

M l j l K l Y M u u u u u m o h ( ~ 3 7 - . - - - m 3 r D a . o C7 T I Z I T f E E T T

U U U U U

. o r - m o . 3 N h l Y r w c ) Q.3 V . 0 . P I L : I X X T r t z r z

Page 50: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

C a t i tude L o n g i t u d e f e-pc t . Mg-pc t . 5 5

Mn-ppm S

2 00 500 700 200 300

5UO i 0 0 500 700 70U

300 300 700 300 300

300 700 5 00 300 500

5-00 700

l r O O O 1 r 000

700

7 00 trOOO

700 700

l r 0 O O

1 0 0 0 0 1,000 l r O O O 1 ,000

700

18 S O D 1 ,OD0 l r 0 0 0 1,000 1 ~ 0 0 0

1,000 700

1,500 l r U 0 0 1 8 0 0 0

B - P P ~ 5

7 0 f 50 2 00

70 2UO

sou 5UO 200 3UiJ 300

70 50

3CI0 2iJ0 2 U O

t o o 150 100 I U U 7 0

2 l io 1 GO 1 UO 100 150

3 0 7 0

t OU 1 UD 150

1110 70

2 do 200 160

Z U O 1 OU 1 5 0 100 150

200 200 . 1 5 2 2 U O 200

Page 51: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 00000 D O ~ O O a o o c ~ n O S O D O u o o o o o o z z o z z z o t Z O O E Z D U O O Z n m o o o o o o m o o o o b o m o m o a k O N - N N NN N r u N N NNNhl O ~ M N N N V i ~ ' f 4 N V l h N r m - h - N Y V V V V v v Y V V V V V I R

0 ~ 0 0 3 o o o o o o o o o o o a o o o o o o o o a3030 o o a o a a w o o o O O O C J ~ E 000t.a o m 0 0 0 b o a 0 0 o m m o o m l n m m h h m m m m brn00h m o h u l h r - h O 0 O 3 w r r r r r r r r r r - - v r - r r e V v v - - - - r . - C

E W m N N N W W P J W w N Y U N N N W m W M V l N N W N m N N N N W W Y W Y W f U N N N Z Z E L Z a v v v v v~~~~ v v v v v v v v v v v v v v v V V V ~ V a 1 R el m

- , . . . , , , , . . , . , . . , . . . d U U U U U u u u u u U U U U U U V U V " U U U U U U U U U U V V U U U U U U V " U U U U "

3 r h l C I 4 m Q h D . 9 7 N m - S m Q h e 3 - 4 - Pienah W 3 . O r W r : - z c n Q h S m 3 - W M - Y V D - O ~ 6 m n r m - l r n r r l ~ n v - f .ruct%-4 . ~ v . - 1 a m m m d b r n 4 . 3 ~ Q . U . O ~ Q 4 3 - r - r - h - r - r c h

* a * - 9 0 0 -9e * a 0 0 4 Qs4Q.O G 2 Q Q - 3 4 " 4 3 0 3 O Q Q e Q Q Q Q U O Y1 Z T Z I X X X = T X = X I X X = - I I I = - = I x T - = T Z = T = I Z - = = X I S = ~ T S

Z T T E Z Z E S E Z LI'ZT 2 E f Z E r I r I I E E E Z Z C 2 P T 5 5 L E 5 Z Z P Z Z %

Page 52: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

3 0 3 5 5 OCJCIOO o o o s o Z O S ~ S ~ 0 0 ~ 3 3 0 9 0 3 a 0 0 0 0 O U D O J WOOD E m 0 0 3 0 O O O O O 0 3 0 0 0 00000 00000 0 0 m O 3 00000 C J 0 0 4 3 O Q O Q O a + n o o m o o r - o m o w o t m o o m m o ohor-r- ~ m . - ~ i n N - o s o n o o ~ o 0 ~ 3 n m a . . * % - 5 % C . . . * I ...* < * * * . - 8 % \ . I Y ) N N e - N N N v N N N N c N N N c - N rU N N W r V N r y N N N N L A A A A A A A A A n F.4

0 3 0 0 0 O O O O O 3 3 9 0 0 O O O U O D O O D D d O D 0 U O O O W C O a k 3 0 0 0 0 0 0 0 rn0Dt.r- m o h o o r .hOOD 003br . * N h r n h N m m m N N N I D m m m 0 m a M O S Q N

P c c - r U r r ~ F P v r r c Y , - r C - .- - 0 * I

Z I L Z Z zttzz Z Z Z O Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z 25003 Z O S O Z 3 2 0 2 0 o O D O 0 . ~ 4 o o a r r r D O r m P P - - * 8 V V V

I " C f

3

E P O O O D 0 0 0 0 0 00000 0 0 0 0 0 0 ~ C l 0 0 0 0 0 3 0 00103 00039 3 0 3 5 0 C P 0 0 0 W 1 t . h h b h t * M P - h m m L C O b m 3 m 0 OOmOU7 O m G O Z l O O U O D O O s O o nul - r r r ,- N ~ W F N r m - w - w - w m f i ~ l m m m m m m h m m L 2

u m r q m m m W l m m m m N 7 m M n m W V I Y - ~ ~ m m n m n M r n M q ~ r n - m m m q Y r n y r n m m m y m d u v y u v U U U U U U J V U U U U U V " L,UUJU U U U U U U U U U " U U U U U U " U " W

2 - W W u w Q h P O r N Y e U 7 q b W P 3 r m g m J h W - ~ C ~ J m e m Q h r n - 3 - N n J f l * h E Mv, .w, fqq r 4 W W , J . s - Z < ~ . ? V . 7 - 3 7 ~ n m m m ~ n m m m f i < U U Q U J C P Q U W b h k h h h h h m Y) I Z Z I X X Z f S Y Z Z I X I I Z T Z I X = X T Z X X T Z T

t E f Z 5 E E X f = Z E f Z r f 2 E f T S E P ~ E E T P E t r . € T l f E T S C E E Z s E r - -

Page 53: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

S a m p l e L a t i t u d e L o n g i t u d e r e - p c t. s

M g - p c t . 5

T i-pc t . Mn-ppm Ag-ppm S 5 s

N 500 N SOU H 3UO N 2Uu N 500

N 300 N S O U N 30U N SOU N 500

Page 54: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 2 0 0 0 Z O Z Z D O X Z O O a w N N N N N N N V 3 V V V V V V V N

W Y N N W N W Y ~ U N Y P J N N W W N N N t U N N Y w m N N N N N v v v v V V V V V V V V V V v v v v v v v v v

Page 55: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

3 3 3 0 0 O O O O D 3 0 0 3 U 3 5 0 3 3 0 3 3 0 5 D 5 3 0 0 0 3 0 0 5 9 Z Y S J O 5 5 5 5 0 E O O O P O f i 0 0 ~ 1 0 o o m o o w a o o a a a o o a o o o o o o o o o a 0 0 0 3 3 o o o o o P m o o a - . - n m - n m o - 0 0 0 0 0 3 0 0 0 < 3 3 0 O O C 3 0 O O O D D 0 0 0 0 0 m o o 0 0 a % 8 * \ h k * % * . % . % . % % 8 % . % . % % , . , . \ \ b * , \ . * I * N N N N r N w f b w N W N N W W W N N N W N N W N - J A ~ N N N W W N N W N C A A A A A A A A A A A A A 6 A h A A A A A b A A A h A A

Z Z O I Z Z Z Z Q Z Z Z Z Z Z P Z O W 3 5 3 0 0 3 O O Z O O O o O Z D 0 3 Z O Z Z 0 2 2 0 E 0 0 m 0 0 o m 3 0 0 00 m 0 0 0 0 S m 0 0 0 0 a c P ,ma m r r w h m m n - 0 ~ m m b r m r - - a VI 8 8 , v

E 0 0 0 0 0 0 0 0 0 0 O O O O O 0 0 0 0 0 0 0 o v o 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 O O O O O + d a 0 0 0 0 3 0 3 0 0 0 O D Q Z V I n a u o o L-0003 m o o o o 0 3 m 0 0 o P o V I o O o m O O C L V ) T U N ~ N U ? M T I N W N l y n m r u - ~ M N N W - N N ~ V I - ~ m m m m w - r ~ m r u - - - P Y ~ n - r u - L C

0 0 0 0 3 LZJomcJo m 3 0 0 0 O O O O O m 1 3 3 3 3 3 0 m m m o o 0 5 D P 0 3 0 m o 3 3 s 3 N N M N ~ N V I - W I N F ~ M N ~ I - I ~ N N ~ - n ~ m r u o n ~ - w r ~ ~ r w r n ~ ~ M M W M - n n m w

r r l r ? Y M M U U U U U - - O r N r - r - m e w Q O . O 9 = If x S X t 5 E 2 1

m m t l l ' f l m u u u u u

M 1 4 m M m U U U U U W @ 3 . - N U 1 F - r pcr.t.r-r- x x x = 3 f E Z Z Z

'-l-immm U U U U U n g - 3 - N r - r y N N hhhlch X X Z I S X 5 E E E Z

Page 56: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 57: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 58: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

3 3 3 0 0 O O O O O O O D J U 0.3333 O O O O J 3 0 0 5 3 O O O O D 30303 5 a 0 3 0 E 00000 0 0 0 0 3 000u3 0 5 5 0 0 0 0 0 0 0 U 0 0 5 0 0 c 0 0 0 O O D D B O O O O O n 0 0 m m 0 0 0 0 0 0 0 0 0 0 0 a o o o e O O O O O D O O O D 0 0 0 0 0 Q O O O O 0 3 0 0 0 a * % h . % h % % . * \ . . . S \ % S % . \ * . % h \ % * 8 . . \ 8 \ 8 % * \ S \ S S * \ 1 - N F - N N N N N NNNrVrU N N N N N NNrU+uN r u N r w N N hlrYNNN N N N N N N N r V r V r Y C A A A A A A A A A A A A A , \ A A A A A A A A h h A A h A A A A A A A A A N

O O O O D o o o o o ~ O D O O O O O O D a o o o o O O O D O O O D O D o a 3 0 0 30000 E m n n m m o o o o m o o o o o o o o o n o o o o o O O O C Y O o a 0 0 0 m h m ~ o o o o o o a r + ~ m m m r m h 8 n t ~ b b m n r d ~ * h 8 n m w w m m n m ~ W N N - .- .- n m m m m h

E 0 0 0 3 9 Q O B Q O O O O O D O O D O O O O O C O 0 3 3 0 3 0 0 0 0 0 3 0 0 0 3 nonce P 3 0 m m 3 m o m o h m r n m b r - m o o m n n m m o m m m - m o o ~ m m a o s m m m m m a m o o P m N N - - . w r r r N - t r N r r ~ - - r - - r N r r r r u ~ N - F - r F C C - -

1

zttzz Z D O W X a m m o o o o o o o o s o o o 5 3 3 0 0 o o o m a o z z z o o o o o r E - 0 0 F - ~ O A O ~ o t b h h o o o o m n o 0 0 3 o h m D r . N N W ~ V I O CL 7 - r N r - O W O O m O O r M m - N v b

E o O ~ ~ O 3 0 0 0 3 0 0 0 0 0 00033 o o 0 3 m m o 3 o g a a m o o o o o n m s o o o o R V l m 7 - m M m b O N N N h m h N m n M w i N ~ N N - r N m m n n r r m m f i - ~ n - m m m m h Q F

Page 59: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 -- Concentrates--continued

L a t i t u d e ~ o n g i t u d e F e - p c t . f i g -pc t . Ca-yc,t. T i - p c t . Mn-ppm Ag-ppm

s S S ' s s 5

Page 60: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E z o o o o Z T Z O O a o ~ z t z t z z z r o o o o z z r z o o o u o m o a o o o o o n o o P ~ N N W N T ~ W N N r c r u r u r ~ m moor-F- omr .mm ~ 0 0 0 0 n v v v v v v v m m - v r - o m 0 I yl \ * I D N V N P

E 0 0 0 0 0 o a o o o o a o o o o o o o o 00003 o o o o o o o o o o s o 0 0 0 o o o o o n m m m o w m m m o m 3 0 0 m 3 3 0 L n 0 0 mr-azJb m o m 0 0 m o o o m o o m m m 3 r - m * m 3 - r r r+ r r -N- N r u - W f w r v ~ r u - r r r - - r W r w m w - m w c - r r V - I - 9 Z

53005 00000 00300 0 0 0 3 a O J O O O o a o o o 30000 0 3 3 a n 0 0 0 5 5 E r-v?oom C J ~ ? O O ~ - m m a o a o o m m m m o m r - m 3 0 0 m o ~ m ~ m v r m s m v r o O ~ O O O 0 W N c r m c N W r W - r - W c r r r N N n v N N W I - - - N ~ r r N - F C N a

v I "l a4 m 3 J c .- u E 0 u 3 ~ 0 0 0 D Z D O ~ o o o o z Z L Z Z Z t c - 0 3 0 0 0 0 2 ~ o a z o o 03303 00030 I E r r - r r F - - - r r r r p r r ~ PI-" fir h - r - n - - ~ O O O J I n v v v v v v v v v v v v v v v v v m o m n Y) a 8 & 1 n C C

E N W N N W N W T y m . W N N N W f U W N N N N N W W A - N N T y N N V I N W V l W Y N W N W M W N W W I n v v v v v v v v v V V P I VI U m

Page 61: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

A 4 -. u W 4 N A L M W W W N W U W V W W - 4 C W W W N N N N U 4 W N W W W W W W W W W W L I W A N W W W 'C C C C W C C C C C C O O C O O O C O C O O C G C C C O C C O C O C O O O C C O O ' 4 0 0 0 0 3

u d A bl v W A A A F W O OW N N W 0 L n C N U U N N * * N

Z Z Z t t C O Z C C O O C Z C C C O Z Z Z Z Z C O O Z Z O Z Z Z Z t Z Z Z Z Q Q Z Z Z O t 3

a A 4 A N A N N N W W - A N N N N N N N A N N N N - + W N N - W W W N N A A + N N N + a d c t n u m I W C U - C C S ~ C W W O C C O O o o m o o 0 3 ~ ~ 0 0 0 ~ 0 0 0 0 W w W LMCOOm D - C O O C O O O O C O 0 0 0 c 0 0 0 0 C 0 O W 0 0 0 C O O O O 0 0 0 0 0 O C O O O O C O O C 3

C1

..- -

5 A 5 A h A 4

A m u A 0 4 O W N N W W W N W A * W - + N A N Ln A 0 '40 0 0 0 0 0 0 O C O 0 o m c o o D 0 0 00 o w 0 1

Z Z P ~ O c z z o o z o z c o c o c z o o c c c o o r o t o z z z c o t z c o z z z t z o

vr u U? N W U W W W N W W N W N W W W W N W A N N A - W W W W W U W A W N A W N U l W A N U l W W C O U C O O 0 0 0 0 0 0 G 0 0 0 0 0 0 0 0 W C O W O 0 0 0 0 0 O O O O O W 0 0 0 0 W O C O C 3 a o o c o D O 0 0 0 o o o o c o o o a o o c o o a O C O O O O C O O O O O C O O O C O C O

C1

v V V V v v v v v v v v v v v v v v v v v v v v v v v v v V V V V V v v v v v v v v v 1

N - N N W N N N N N N N W - N N N N N N N N W N N W N N N N N N N N N N N N N N N N N W f V W I * 5 . . * * * . . , 5 5 . 5 . . * * . . , \ . . . ..... 5 . 5 . . . * . . * 5 5 5 . . u O D 0 0 0 C 3 0 0 0 O O O C O 0 0 0 0 0 0 0 0 3 0 O O O C O O O C O O 0 0 0 0 0 0 0 0 0 ~ u 0 0 0 0 0 O O O O W 0 0 0 0 3 0 0 0 0 0 O O O C O O C O C O 0 0 0 0 0 0 0 0 0 0 O O O O O 3 C C C C r O C t C O O C o O c o c 0 O C c o C C 0 C O O O G O C O C O O O O O D Q C C C O

Page 62: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

T a b l e 1 --

Samp lr

H H 8 2 2 C J MHBC3CJ M H 8 2 4 C 3 MHbZSC3 M H 8 2 6 C 3

M H 8 2 7 t 3 M l i 8 2 6 C 3 M H B 2 9 t 3 M11830C3 M H 3 3 1 C 3

M H d 32C3 N H 3 33C 3 Pli1E34C3 M H 3 3 5 C 3 M H 8 3 6 C 3

M H 8 3 7 C 3 2; Mi18 38E3

I I M H b 3 9 C 3 ' M H 8 4 0 C 3

M H 8 ($1 C 3

M H 8 4ZC3 3 M11843C3

14HS4LC3 N I l h 4 5 C 3 lqH846C3

I4H847C3 MHb48C5 M H ~ ( , ~ ) c ~ MHa5OC3 11rr351 c 3

M l i 8 5 2 C 3 M H B 5 3 C 3 M H 8 5 4 C 3 t l H 8 5 5 t 3 M H Y 56C3

M H b 5 7 C 3 M H 8 5 H C 3 M H 8 5 9 C 3 MN86OC3 M H d t l C 3

M H 8 6 2 C 3 MH843i .3 MH8C4L3 M H P 6 5 C 3 M H 8 6 b C 3

L a t i t u d e L o n g i t u d e T i - p c t . Mn-ppm 5 5

Page 63: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 0 3 3 0 0 3 * m O O ~ O O o o m o o o o o o o o o c o o o o o o o oootno o o o o o m h b m o a m - - r n o n n o - = - - - a m t ~ r u ~ C O O O ~ ~ a u o r u t ~ m m ~ n 7 - + - -

~m N- - h rum - n - N W ru N N W - ~ W ~ M W c v v v v I UI 0 U

Z Z Z t ' Z l t Z Z Z O Z I Z Z t Z Z Z Z O Z Z Z Z Z 3 0 2 Z Z T B Z L Z Z Z Z Z Z Z Z I Z t E N N h WIN

e u ~ h m n u ~ N W N N r u r u r u ~ ~ N N N N N ~ r u r u r u r u r w ~ w r u r u W N N N N N N N N W I ~ M N M W n v v v v v v v v v v v v v

P * U m

Page 64: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

j S O 5 0 3 5 5 0 0 00000 0 0 3 0 0 3 0 3 5 0 3 0 0 0 3 0 0 3 3 0 00030 3 0 a 3 0 E 0 0 0 0 0 D 0 0 0 0 00050 0 0 3 0 0 00000 00000 a 3 0 3 0 00000 00034 P 0 0 0 0 0 D O 0 0 0 O O O O O O b 0 3 0 O o O U O 0 0 Q 0 0 00000 00000 00000 a . , . , , . b . % . . . . . , 5 * 5 5 . . . . , . , . . . . 5 . 5 , . , * . . \ * , * * h I rr NNNNN N N N - f u N N N N W N N N N N N ~ U N W ( W N N ~ W W ~ W N ~ W N N N N ~ U ~ U ~ J N C Y N W I U L A h A A A A A A A h A A A A A A A A A A A A h h h A A A A A A A A A A A A A hl

E O O O O O il C Y v r ~ ~ I . a m N C V I L n I >

n y w n m m n m - m m u m m m ~ m y m m m m m m m m n m m ~ m w - " I m m m n m n m m n m m m 4 U u u u u U U U U u U U U U U U V U u u V U U U J U U U U U U U V U V U U U U U U U U U U

P N n u m g r.co0.0- w m . J r n a h c o 0 . O ~ P . , m y m . D h r n o . 3 - NW.T",Q L r n P O - P . , m < m Q E wrurwm~ru W N W Y I Mr- lTWT M ? W U . T y ~ q u u 4 . T V - r n m-qmLnL7 ! n L A m Q 3 a O W W O m m a m m m m a w w m m r n n ~ m m a w m w m w m w s r n a n m m m m ~ m a w t o m ~ ~ w r n w m o m m VI = f ~ S f X X = X X = x f X ~ X I Z X X : X = I I X f r z x X T X L I X X X z X Z z Z T X

Z E E E Z T Z E Z T P P Z T Z f E P Z Z Z Z Z C Z Z E X r X Z E E Z E P E E Z Z E E E Z E

Page 65: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

f a b l e 1 -- C o n c e n t r a t e s - - c o n t i n u e d

Sample L a t i t u d e L o n g i t u d e Fe -pc t . Wg-pct, T i - p c t . Mn-ppm ~ g - p p m As-ppm Au-ppm B - P P ~ Ba-ppm

s S 5 S S 3 s 5 5

Page 66: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 3 0 0 0 0 0 0 0 3 3 0 0 0 3 0 0 0 0 5 a 0 3 0 3 0 0 3 3 O S O O W O D S O O P O E D o o r - m O O O O O 0 0 0 m c 03000 o u o m w L I h r n O h Y , o m m C J 3 0 0 0 0 m m n on.- ,- b n n h o m m f i - r ~ O W Y , ~ ~ - Y , O - N r m c r ~ , n m - w r - F

o z ~ f i o O D O O O u o o o o Z O Z O ~ O Z Z O ~ 3 3 0 0 0 o a z a 3 0 3 0 ~ 0 an E - N r - - r r r - r r c - + r - Y, + b n - - P O P F - - 0 h 0 0 m 0 0 C l P V v V V V V V V V V V V V V m V V N m C I r V I r O 0 t . I ru P

u e C3

u C E 0 0 0 0 3 0 0 0 0 0 O O O O O 3 0 0 0 0 9 0 0 0 0 0 0 3 5 0 0 3 0 5 0 J C 3 0 0 5 0 0 0 3 m o o m a 3 m o o O n o 0 3 3 5 0 5 0 5 J o o - 0 5 3 0 a m 0 0 3 3 0 h O b 3 m U O v e - m - b ~ - - m b h 0 m m b N MY^ - m m - N ~ F V - ~ W N W N N r N N

I m

E ~ N W N W N N N N W m q n n w N N N ~ N N N N W N W N W W N N N N N ~ ~ N ~ N N m b Q v v v v v v v v V v v v v a I ul

m m n m n n m q q m r n n ? r n M m r n w 9 r n m n n y n ~ l n m - n ? + O W m q n r n n m m Yt4 d U V U U U U V U V U U U U U U " u u v " J V U U " v u u v u U V U U U u u u u u U U P h q m - w u m a ~ s O - P J ~ U r n a ~ p 3 r ~ m < m 9 r - w o - mem ma w a m a - w n t Q V Y ) + r - I c h h I c I c r U 4 ) r D L V a U w 4 l t O ~ - ' . L T 5 > + i * * O I i P 3 3 U Z ' 3 3 U > U S r - 7 -

Page 67: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00333 0 0 0 0 3 0 0 3 3 U 0 0 3 3 . 3 0 3 3 3 5 3 3 0 5 0 33030 3 5 U D O a 3 E 0 0 a a 0 0 0 0 0 3 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O P O 00 P 0 0 0 0 0 0 0 0 0 0 0 3 0 0 5 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 G O O 0 0 0 0 0 0 0 0 0 D . * . , s * * * * \ * * * * * * , \ * . * . * C C . * * I . * * * . * , * . . * * * I m N W N ~ Y W N C U ~ U N N r u w f w w w r u w r y r v w ~ ~ r d h l r w w r ~ r y r u ~ N N N N N F J N N N N h l w L A A A A A A A A A A A A A A A A A A h A A A A A A A A A A A

a a z t ~ z o o 0 0 o o o x z D O O O ~ o o o a t z z o z z h z t t z z z o o z z z E 0 0 O O O V r 0 0 0 3 0 0 a 0 0 3 0 0 - 00 0 vrrn 0 0 - r M V I Q h f u h l r l r - m r 0- a 111 N b v b v I hl ru C P

3

3 5 D U O ' 3 Z 3 3 3 33330 3 0 5 0 3 0 0 0 3 5 3 3 Z 3 O 3 2 3 3 0 3 S 3 3 2 3i3 E- 0 3 5 a 0 3 0 a 0 3 9 0 0 0 0 5 3 3 0 ' 3 3 0 3 3 0 3 3 a 5 0 03JC33 .a020 03 a m - h m * m h l m m h m O W m m r n m W m 3 h m - 3 0 h O m m m bA"-,Omw O O Y N h m n v l v * s s \ I m w ,-- - 7 - 7 - L

VI

mm-inlrl U U U U U u m - 3 - 0 . r s h h h l c

.qmwrnm U U U U U 0 - N M U r O L U i O L U U J r n ~ m m w X - I T Z t r Z r r

"7vlYm U U U U m S h P VJtuJ2m Q m m w J X Z f f I Z Z .-. -- -

i ?

-7) - M U U U U wm.*m P G - * D

m c ) Y l m M U U U U U O h M l D r

M ~ ~ " l t 4 U U U U U r b m . Y m . c 2 u u (3 :.> r r z a ~ ~ - - + - - - r Z E Z E Z

YrrlWrrjM U U U U U h W C - o r uuu-r- > * P D . 0 . X I I f I E E Z Z E

Page 68: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 69: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 00000 O U O ~ O a o o o o o c ~ o o o a o o a o o a o m o o o o o m o o o o azooo h m N N N r N r n - r N O V l m N M m W - - c n h O N M m + r r r r - r - F - - - - - - r

n v m F v v v V

E c o o n o c o o o c c o c c ~ o o c = o c o c c c a o = o u c c t o c c o o c c ooono c ~ S ~ C I I ~ p c m - n r - ~ c c m p c m m v \ m n m c i - m v , ~ O O L O C , C D , ? C ; C ~ u r m m o C C C W - o -2 - C v v- C C - m - v # W ~ ~ W N n.---ru ~ ~ W O - N I YI .- ". -

E O C C O O G O 0 0 0 t O C O U O O U E C J C Z 3 C C Y O O O O Z Z Z L Z Z Z Z Z Z Z I Z Z Z Z n N W N N N N W N N N NNNNr., N N N N N t w N N N m N N N C V V V V V V V V V V V V V V V V V V V V v V V v I VI n z

E C . U = P O ~ O D C ~ V C ~ C O O C C Z ~ o c c c c o c ~ o o o z z z t z z - t z r r z r t r m * . w . - > M r n l ~ m n ~ ~ m m m m e m r n r ~ ~ r r . m m l c r r m n m m

P

E o c o o o D C O O C c c o o o C C C U G o c o o a o c o c c o c c c z nococ o c c c c m h r n @ w O ~ C W C m m c c k m c h m w ~ Y C ~ L m w h ~ n r - m ~ w ~ - m ~ t c ~ o o . n o ~

n - ~ h r - + - r ~ - - - r - - c - - - - P-

I VI 3 U r-

w

- C C 3 0 3 O O C O O ClOC lOC C C C S O O C O O G c=c l r r r C , z C = C O C r n C C C 0 9 0 E C E O C O O C O W > O L C - - - = C O ~ L C = O O ~ C C ~ C C D C C C Y O c c n c n c c c c o fi C C C Y , h * - L n r C F h - - C h V V \ - b - h F - C m C l r C P W m W f P . . V M

E C L ~ C C C c c c o c C S ~ C C ~ V . C ~ : C c n t c : ~ ~ r n c - c c o ~ : r c c c c c r c c = c r C r e . . * . . . r . . . . . . . * . . I . . . . * . . t . . . . . . . . . . . . . 2 . * 1 L - . - - - r r r k h 7 - - - r . - - r - t r r * , - - t r' - 7 -

I YI V V V V V V V V V V v v v v v v v v V V V v V v v v v V a

Page 70: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00300 O O O O D 0 3 0 3 C 0 3 1 0 0 0 3 0 0 0 h m O D W ' 0 k 0 0 C O O O D D U O O P V I C f i m 3 0

,-.-Mf "- M.-- - m m m m NNr.,Nv- - - . - w m

C 3 0 0 0 G O C O O O l C C C O C D C C C C O C C N M M N ~ M M N N N ~ m r n n m N ~ ~ N N m ~ m m m

4-.

D r C C C C C C O O C r C C C C C C C C C C D C C C C v h C W ~ M T - ~ w n r - h v F - F

S O C C C O C F C C 3 t m t C C C O C C O C C C t CGLAC-C m m h n m m w , w r w e m - 7 - r

C C G C C c c m c u . - N . - . - C P

Page 71: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

W O O O C O O O D O o o a o n o s o o o o o o o o 0 0 9 0 0 o o c o c o o o o o 0 9 0 0 0 E a 0 0 m 0 o o o o o a o o o n o o o o o o o o o o o m a o g o o o o o o o o o a o o o c o Q I A m h r - Q m m m h " 7 h b h h h m K l O + k w h * - h m m - b I A N - m h h m L Y W l U 7 m h m C n . . 2 -

E "70000 0 0 D 0 0 O O O Z O D Z Z 0 0 Z 2 t Z t t t z z t o o o o n O O O n O o a o o o P - W . - W - I A h I A O n rnwtv- LC7 M W W ~ m m 0 h O L L ~ O m k ~ m " 7 n n ,- C - - C

I 92

D D O O C o o o o o CITlhhF- 2 r

0 0 3 3 0 C C O C C r.nJmmYI

2

D O C O C 0 0 C 1 c l O Y I l c O r n l = l

C L O G 0 Y C Y C C . I . , . - - -

A

C C C C C "-cjmmc . . . . . r e r r P l

O G C C C C O S C Y . . . . . . t V C C L T U 7

O G C C C . . . . . hF>YIYIM

Page 72: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E zzztt z z o c z D I Z Z O z o z o z ~ z t z z T Z Z Z O z z z c o Z Z ~ D O C I O F O 12 N W PU N R ' N N N N N N ~ N N N 3 v v V v V v V V V v v v V v v 1 VI

E ~ C C C : C C T I ~ C n m c o t r m c c c - v l c c c r c c c m c a c c , o s c - r r r c ~ r . r r ~ ; . s ~ C . . . . . . . . I . . . . . . . . . . . * . . . . I . . . . . * . . . . . . . a I . . . .

r r - r - r - r r r - 7 - r r - r r - - - - r - . - - r r r r - r r - - r h r - r - - - r t -

I YI v v v v v v

Page 73: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

C D C O O O O O Q O c c o o o 00000 0 0 ~ 3 0 0 ~ 3 3 0 O O ~ I O U O ~ O D O o o o o o E O O C O ~ O D O ~ D L P ~ C O C O C ~ Z Y C n o - 0 0 c m c m o m ~ - 0 0 0 O W ~ C O P " O O ~ C Y n 7 r k ~ m ~ s---nm ~ m - n ~ - - m m n n r m - r . - ~ 7 - m V v r r ~ n - -

E O C Z D Z z z o o o z c o z o o z c o o z z z z z z z z c z Z Z O C Y = D O C C O o o z c o a 0 c n 0 O D O 00 o o c o n o c c O O O O Q oc 0 0 O. W N N N N N N N N W N W N N N N W N P U N N N NAJ N N

I YI v v v v v v v v v v v v v v v v v v v v v v v v v

C O C C C C C U O C O C a C Y O O O O O C O O C O O C O C U C C O G C D C C D G 7 6 C C C O C C C O C C m h h O W 3 m m O m 0 0 0 m 0 C . b O C P - 0 0 b - m C m f i C O W O O m Q O C O m C

h 7 r C k M r - - V V - C - c - F - - - - 7 - - 7 - C - - m --.- r - - P R !

n y1 b

E c c c o c c o o o c C P C C C ~ t t ~ d O O G C C c c c r ~ ccccc c x ~ o c o c n a o O ~ V C C C O D C C c c c o o C C , , ~ W S L - w c C C L D O ~ n t i ~ c c c o o o c c m c

n ~ F Y ~ N - V - C V - - - - - ----.- - N - - & P.!N--- - X - - - . - - 7 - v V V - - ? V

Page 74: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O U O O 0 0 0 P 0 O O P O O 00000 0 0 0 0 0 o n 0 0 0 O C O O O O D O O C 00000 E 0 0 0 0 0 0 0 0 0 0 O O O O 0 0 0 0 m m m a 0 0 0 00000 3 0 0 0 0 O O U O O 00000 a m m m a n o m o h m M N V I W N m n n r - n n n u h n h n m hrruhh o h o m h r n h o b h n * % b s l m 7 P r r - m m

E 00000 0 0 0 0 0 0 3 0 v - 0 m o m 0 0 m c 0 0 0 o o o o m o o o o o o o o o o o o o o o a h m h O h h n ~ r u h - - N r N r - - r - 0 - - v r C u - m - r m - m N h L L k O m h D h m h a m - - v r v P r I m

E m m m u - qn-tn rn rn m m m . . . . . P Z Z t Z 2 Z Z Z Z . Z t Z Z Z Z Z Z i I , ' Z Z Z Z Z Z P Z X Z t z . . . t . . Z . Q v v v v v v v v v v I n

0 0 0 C 0 o o o o o 0 0 0 0 0 O D 0 0 0 0 0 0 0 0 o a o o o 0 0 0 0 C 3 c 3 0 o O O O O C E O D O O C O O C O O 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 O C O C O O O O U C 3 C 7 P c l C O c 3 O O a o m m o w o o a o w o o o c o c m o o c m m m o a ~ C I L O ~ ~ h m m k Z C - w w ~ ~ D O L

O G U O C D C U O O 0 0 G O D 000C3C O O L I O O O C O O U O O C O O G O C O O O C l O O O - h C C O O O r . O h O C O W 0 0 h o r n a h c r - O n - 0 0 3 0 C r n C r n O C O O h k O k O t - O h U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a @ - r - r - r - ~r r r c c - r - T - - - - c P - C Y - - - m w I h A P. .,. b t

O O O C D O G W O O O O C O C O C O O O C 0 0 U 0 00000 D O O C l O C C O O O C C 0 3 C N m y c w b r I c O r P - W 00Y100 m D D O C C O C t O O C O O l r \ O C D m U 7 m Y r O m O P - D O C m

u- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . c l - - h.v8-nk4 . - r . - ~ m m m ~ r u ~ ~ m n n , m n m - r - - - - -vm.+ I

O O O O C o C C C G C C O O G O G o C O 5 5 C C C C C C C C O O O O D C C C C C 0 0 0 0 0 Y m o m o w - m c a o r n L O C C C 0 0 ~ 0 ~ O G O C O O O O O O F O C O C ~ O D U \ C m C t 0 0 u . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O O O O O a n c o o . 0 c ~ o O o o c n o c c o o o o o r o c n o e ~ c c n c o c o o o o o t. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u m n o r r n o o o c c m m k m m ~ v r n m c c m m m m o m c t m o m w m c c ; n c a t m c : c v , m a m C + C 7 - - - .-,- - 7 y r - W r - - . - r - - - N , - . - - - - - , - - - - - - r - 7 r C

- .F o ~ o ? . w ~ m n o ~ a w ~ ~ : o . c , c - ~ . - r c r c h r n ~ m e c r u n n ~ r G C C P F - . O W U N - o ~ * . O . U C P P N W N N N N W N - r - - - - - - V N k m N w h h N - P - c .- Ln m m - C

Page 75: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

( (. L C . Q C ; O Q 2 0 i l j : j ~ 7 ) 1 ) J

E G O C O O 00000 O O C V t O t o m 0 0 O D O O C O O C O O C E O 0 0 0 0 0 0 0 0 3 0 3 0 n F V ~ O * t n r v v u w w ~ m m - o O F - * . - rncmmr- W F N ~ O ~ P C O C m m m ~ r . C L C O C 0 c 7 .- 7 - - r u L n W l . - r r r r I YI

F .-NN ?3 3 U I3

- O C P G O o o c o o s n o c o c c o c o ooccc z o o o c n c o o o c o c o o c o ~ o o E c m l ~ c m r - r - m m h v m o a = C C ~ O C o u o c o - m o o m n o o s ~ - , ~ O P ~ F . b o ~ o c D. r f- O - N M N r W 0% r N ~ - t O m m - m v t - r n - m c F - -

Q r-.-"--

b .

E ~ G c c ~ vrOvrOrn O C Z C ' C C C C C C S C 7 c C O O o S C rnoC.nm c r C r v r 0 C m r n m U 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P - r r r r r r - r r - r r r r - - F C C r r - - - r - t r r r - r r r Y V C V - ~ r - c c I u v v v v v v v v v v v v v v v v V V 01 m

Page 76: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E o o a m m m o o o ~ a o o o , n 3 ~ * f i m m 3 0 m o c m m ~ \ m m moau-o O O D O D o a m o a a r p p r n b V - W N L d q m m m O G C G - - u ~ n m d a n m . r m q m m ~ ~ N N V P N M N ~ O ~ n m - F - ,"- - F C C C C C C F C

I * C N

E o w z o z o z z c o ~ Z W O O c c o z o D C D O O z c z o x r o z o n 0 ~ ~ 3 0 o o o o c a O D c o c o o c c n o c c o c c c w u o 0 0 C O 0 - 3 t 0 O O C O C n N N N N N N f u m ~ r w ~ w n N N W N N N N N W N N N N ~ Y N W N N N l Y 1 V V v v v v v v v v V V V V v v v v v v v v v v V V V V V v v v v v C

E D C C C C O ~ O C O o m 0 0 0 C O D C C m o c ~ c m o n m o m m m o m r ~ a o c c o c ~ n o m o a ~ M N ~ N m m n n m F P N W N NNNN.- C N N C - M N - ~ C . - - F C W M N W M M N ~ W P N P H V V I r

N f 0 0 0 0 0 O C C O C G C C D C CCCCYC C O C C 3 C C C C t O C 3 6 C T C C F C O C C C O

4d O C O G C O lClCCCCl C C D O C C O G C C O C t D C O C C O C C V C O L T C O C C O C O C C i O a -,---.- - c - r v ~ - v n m w R ~ W N N ~ 0 - m ~ m m n k m w - b m r . - V - - F - F - - ~ N

P I V I V v v 4 L -

I- VI

Page 77: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

o o o o o o o o c o O O O U D O O O O G 0 ~ 3 m n O D O O ~ ~ r n o c o c ~ ~ o r ~ o 0 3 0 0 0 E 00000 O Q o o u 00000 O U 0 0 0 0 0 0 0 0 O O C O O C U C O 0 ut0000 D O O N O a o m m m m MOO k o o o m m b m m n w h n o m m n n - 0 a h h m o - m m w ~ r - m w . m v n a s 5 8 S b k 5 8 b S \

I V ) - -- - W N r - 7 F 7

m

E o o o o m o o o o m O o o o P o z o o m o o o m o m o o 0 0 o o o o o o o o o o o o o o o P O m m n ~ h k C M - 0 k O ~ r m e - c r w f v - r w l - m m + O 0 m 0 0 m r N m m M m w k - m O m r - r - V - - l - - c r V F

I m

3 0 0 0 ~ 5 c ~ o o n o c o o o o ~ Q O O ~ o o o o o o o a o a o o o o o ~ w o n o o o o o = E O O Q D D o o o c o o o o o o O D D W O o o c o o O O Q O C 9 0 3 ~ ~ C ~ O O O c c o o o P h O h 0 m h k O h h O S l h O l n O O h C u \ O m C m O W G L ? C b C.-?P-'Z3h U \ C T J C O O C f i m k a 8 8 b b b s b . I b k . * \ b . . * 9 b \ * \ \ b 8 8 b k b

I UP C 7 - F F r - 7 - C C F - N P - F F - F - f- F V - C ~ N r - - r C

. c c c o c o o o c o G O C O O o o o o o o o o a o D P O O O o o c > c a o o o n c c o o a c W P - % O h 0 0 0 h C 3 h h W C O h k h O O CP-b7P-h O P - b C o O C 0 3 h C C O C h C O P - + C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " ' I *

. O C C O O O O O C O G O O 0 0 C O C C O O C C O C G O C C C C r c D G C 0 0 3 0 5 O C C C O r h m ? C a m C C O 0 O O ~ O D C m 3 m 0 m o O w G G O C t n C Y C k z O O c u c c C f i O C m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u 5~ r~~~ - - W N N N - WIYI m r m - ~ . - N N ~ W - - -.- brnrWV>N M C N r n . - 1

C O O 0 0 O O C C C C C C O O C C C O C C o O m o C C C C C O C C C C O S C C O C O O O C u * C D C C . r ? C O C O c m m c o o O C C C C G C C O O C O O m c ? r m c r m v c C s 5 t c o O m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 n m r r , ~ ~ \ r n r - m h n w - ~ m m m r w n w l ~ n W M ~ J N M m m w W ~ - r u - r ~ v r w m m v . C r

T-

Page 78: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E O O O O P 0 0 0 0 0 o o o o c o o m m m m o o o ~ P N r r - N N N - m - v m m N + ~ m r r - r D N h r a v v v - I YI 0 a.

O U U O G O O O O D c u o o s a o o o o t n a m m ~ m m o o o m n o o o m a 0 0 0 - - - - - r r . - N N - - N h - Foul"--

% \

Z Z Z Z Z O O O O Z X Z , Z Z Z 2 z z z 2 N N N N v v v v

0 N h l N a v v v I n

0 0 0 0 0 00000 C O D C O cc7aoo C O C m O C m h m h C O C C O D O O O C V I N r n - t - - F N r n b - ? C . - CL-YIP.-

E C D O O O m m O C C C O m C O C C C = C t C C C 0 . . . . . . . . . . . I . * . . . . l t . . . . c r r - - - - v - - - t r r r r - -,,-, ,,,, I L" V v v v V v v v v v v v U

c c c c c m m m m m C C D C . w t 3 c . * . r * . e m . = . * . . " * . > . - - - - h r t r r r F - F - C C - c

v v v v v v

Page 79: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E o o m a o o o m n o o o o o m O L - o n o o o o o a a o o o o o n o a a c o o m o o m n m u - n O O ~ ~ - C q - h e a r n m m d m r - m c a . - N ~ Q ~ N a o o d m ~ N N N ~ m s o s e q h ~ u b a m n~ - r~ w r N U N - F . - ~ - m - - F ~ r r , - , - . - m r n C r I m C

-4

c o o o o O C C O D o o n 3 0 0 0 9 3 0 o o o o a o n o o o o o o o o o a g o c o o o o o E b o w m n a o - m ~ , o m m m c m k m h h w m k m k h k n o w 00000 m m h m k Z g m " 2 a - N W r - m r r - - - r-hl h l n m ~ l h l

E O O Z ~ D OOC-YCO o o o o c o c c n o o o o o o w a o o o a o o o o s z z z o P O C 00 C O O 3 0 O O P O O D C t G C O C O O O C C C O O 00003 0 0 c r ~ h l ~ Y N N ~ N ~ U ~ U R W V I N R . I I ~ ~ N ~ W N N N N ~ N N N N N N N N ~ N V I N N . . I YI v v v V V V v v v V V V V V v V v v v v v v v v v v

C O D C O O C Y T C C n w c o ~ o o o c n C C O O ~ O C O C ~ o c c c c C C C O C E O O O O O m a a c o o o o o c o o c o c c o o m o o c c c o c c n c c c o o o c a h - w ~ l ) h r : - ~ k r d h w ~ y c h m L P N Y M ~ n r n w r m v \ h m u . m u\mruv lM k m l r m v ~ tr m s k s

13azoCI 3 0 00 N r u Nhl v v v v

Page 80: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

03000 0 0 0 3 0 0 0 0 3 0 0 0 0 0 0 00000 O O O O O o a u o o O O C O O 00300 E 0 ~ 3 0 0 o o u o o O O O O C J 3 m 0 0 0 o m m o m N D U J O O n o o n * o o c o o O O O ~ O a n ~ n h n h h m m h m t n m m m W I - ~ N ~ m - m m - - - k o m n m m r k m o w , b m n m M n \

O O C O O 0 3 0 0 ~ 3 o o o o o o o o o c O ~ O O C Y 0 0 3 0 ~ o o o n o o o o n o o n m o o E 0000CZ C C O O O O C O O O C C O C O 00I200 O D C P C O C C D D O G D C G G C C C O Q C Q C V , O O D 0 0 0 m m D P O 0 0 o m 0 m o r , h o 0 m o o r . m h a m m r n l h r n 3 m m o m m CL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \ \ * \ \ 8 * C \ I I W e k e m , - r u - r ~ r r - r r - - ~ N m r w -+ r r F C - c - P C - - r -F . -F-

C

. o o a a a c o o o o G O O O C 0 ~ 0 0 0 a o o o c o c o o o o o c c o m a a c o o o o w c r 0 0 0 0 0 m h h o o o o m m h C - C O O O C C ~ C 0 ~ 0 r - h O ~ G O C - o ~ m s O O ~ O O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U

c c o c o 0 3 0 0 0 ~ o n o c oooco c o c o c c c c c o o w c c c o n o o c o o c o o u m m m o v , r r r o ~ o c D O D ~ C o c c o c O c C r n ~ C 'C ;OCvr C.COOIc F - t m m C O C O C C 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 81: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E U O C O O O O O C C G O ; C O O U D C C O C O C U C O O 0 0 G O 3 C G A U 3 0 0 C C O C C a 0 m 0 0 0 b t o m o 0mmt.c o r n o o m c a u n o mmmoh o h w , m i n -rno.mo h m h c h

r - r n - m h r m n r ~ .- - r ~ m - m o m - -F- . - F - r m r

I V,

c o o o o w O O O C G c o c o o G O C C C C P O O C O C C G O O G G C D m n c c c o c c o o 0. a * . . . I . . , . . . . . . . . * . I . . . . . . . . . a . . . . I . . . . . . . . . . Q - y r - r r - r r - C C - - - - r - - r F F F - c r r - r v - r v r v - r r r - r I n v v v v v v v v v v v k V V V v v v v v v v v v 01 rn

Page 82: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 83: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

i ! C: c C c c., C 5 .* **, c'> f: :;r I

O ~ O O C a ~ n o a o o o u a 00000 o o o a o o o o o a n n h n k h h b h h m m m h d s

e o o m o w o o o o o o o o o o o o o o o o o o o o o o w o o N m C N N m O h y O DhFr-h O r + W h Y M m m N m tubbhl.

a u3 - F P P

O g O Q O r l O O C O C O O O O 0 c 0 0 0 0 0 0 0 0 C O C O O c m c o m o r n o o m O v r h 3 C * , . . * * * * * * * . * * - F C . - C " - c c - - - - - r

O C O G O O O O C O D C O C U C a h O G h0bt-F- 9 1 9 9 4 . . . . . . . . . .

C C C O O D O O O O D O 0 0 0 F " 7 P r n r n v r ~ a m m k F W 0 U l . . . . . . . . . . . . . . .

r - 7 r - m r F N -

C O C O O r C r s I P P L I c . . . . .

r

Page 84: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

e o m o o o o o o o o o m c o o m o a c o o o o o o c o o o o o o o o o w o o o c o o a o o n -++--r k N h h m v i n n m m mrvmmtu ~rvrumvi N n n n o ~ m r - N m a m m N N m m N N N 0 v v n ,- I ul 0 a

E 2 2 2 2 2 O Z O t O Z O a Z O O Z O Z C O Z C O O Z O C O O 00000 Q C Z O O 0 0 Z Z O a N n , N N N rw N N N W N N N W N N n J N N N N N n , W W N P v v v v v v v v v v V V V v v v v v v v v v v v V V v v v 1 . 1 1

- 0 0 3 0 ~ 00000 O P O O G 00000 ~ O C G O o a o o o o m c c n o o c C ~ o o o a o o

E m30vrCi O'C.rn00 r n O n m h rjmr-mm h m m h m m r - m C h 0 3 3 m 0 r c m m C 0 h O m m m C - r N - r - ViN - N " P V C .-.-,- -

E C O O O D m c c o n c o m m c o m c c n c m o o m v v r ~ o c w c c m m m a o c m m o m m u a . . . . . * . . * . . * 1 1 . 1 . 1 . . . . . , . . . . . . . . . . . . . . . . . . . . . 2 - v c - ~ - v N r N r b r u ~ - - - - r r w r - - - - r - . - c r - - r u m - . - r - t r U - - - C - - I "l v v v I. @2

Page 85: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00000 D O 0 0 0 O O O O O 3 0 3 0 0 0 0 0 0 0 03000 00000 0 0 0 0 0 E a L 3 - m C C O O O A C C C I O O O O C O O O C C O 0 0 0 m 3 O O O C O 00030 a r - m n n m m - P - I * . - w ~ m m m n m ~ n m m w m n m r w N ~ W I N M W > N ~ ~ N

E Z O O 0 0 Z t z Z t C Z O Z Z C Z Z t Z O Z Z Z O t3000 O C O O O Z Z C O O a 0000 o o n o D o c o n e o c o o c u c o D N N N N N N N N N N N N N N W N N N N n J N N

I yl V V V V v v v v v V V V V V V V V V V v v v

E C - O O C Y O W O O P c c o c o c c c o c o c ~ o n c c o o o o o c c c c z = o c o c a c ~ n C O D D O 3 6 0 0 0 o f i o e m c = = o m m o m m m m ~ o c c c o c m n 3 c c m c moozr p m r u n n m r ~ ~ r - k - - r e - - P C - - r w r v - v . - - - m - r - n - n r - m h r - Y - N P - I C I I"

Page 86: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00000 O O O O N P C M N ~

e z o o 3 0 o o o o w D O O O O o o o o o o o c a o coo00 0 W O - h O O m h N O M k O h 0 m 0 0 w O F h m h LnmD-b- a L" w# 4--,- - .- N - N 7 r e.- P

I 9

00000 O O O D ~ o c o o o c o a c o o c o o o o o o c o E o c o c o o o c o o ~ O C O O c o o o o o u c o c o o o c o P h C C k W h h C O O O C O C J h m 3 m O m ?-OChF- O C C - * ..... . . . . . . . a . . \ . . \ \ . I vl r r - C Y C - C - cr-t-cr r - c .- c r - c

O O O O Q ? O C D O U O C O G C O O O C 0 0 0 0 6 v $ C C m C ..........

N N C N N

. 3 0 C C O O C C D O C O O O O O O O C O a t 0 0 3 O G 3 0 0 r n I k b C t O D O O C O O t - t - 0 b C n o R C O O 0 0 Q P o C o . . . . . . . . . . . . . . . . . . . . . . . . . Y . . . . . -

C G C O D U C C C O Z O C O C C C o C a C O S O C C O D C C - o o v l m m avroco U ~ C O O O O C ~ ~ O o t i c m o C ~ G C C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y

a o c c o C U C O C . . . . . v l m m P 1 0

Page 87: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E o o c o o o o o o w o n o o o mooco o o o o o o o o o m o o o o a Q m w n r u h m m ~ n m t w o n m m r m r n w ~ m n m N r l w m n + - e r r r - d - V

o o o o a vlcomo F O C I T C * - r - -

" ' V V v

E O O C C G O C C O C G O C O O U C O C O C U C O O D O O O O O O O O O n ~ l ~ v - m h ofifion r n f i a m m t h r ~ r - m C m h n h m o w m o L T N ~ O ~ a v e M N - * - N - r N -

I -c Z

E z z z o o O O O O Z c o z z o O O O O G t o o t o o o o r z t z x z r a N N N k W N w N N W f u m N N N hl N N W a v v V V V V v v v v v v v v v v v v v v I n

E r n O C C 0 O O O C O C O o C n O C C C O O C O C 3 D O O O O C O O O C C a V Y N ~ C F W O ~ n w ~ ~ m w h ~ - W G Y I k ~ m m m n m m m c n c o o o 0 I- r n- m - --- - l - m m N I * 3 u

E O Y ~ P O O O D O ~ C o c o a m o m o ~ 1 m c o ~ v l c m m c c n w o o c c a r - hlNh lF3 td m m v r h i r F - N N M ~ N - - r u N 0 m r u i n w i m P .-. I U)

0 U

E c c c o c U - ~ C ~ O O L - C L - c m r t n m c n e r m m c w o c o c c o P . . . . . I * . . . I . . . . I . . . . . I . . . . . . . . I P

m z z _ . r w - - r - r - r r N - - t - - 7 - r r - 7 - r - - r r r t r r V V v v v

0 m

0 0 0 C I L 3 C D O C ? a . m . * I . . . z

- F C C - r.--7 V V V V V v V

Page 88: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

Z O D O O C O Z D O o c o t o o o c o o o c o z o o o o c o t o z z c c o z z r o o z o o O ~ D C o w c o a 0 0 0 0 = L O C O o o c o c e n c o a o o o o c 00 h N N N N W N N W N N N N W N N N N N N W N N r V f V N K * N N Nhr N N h N V V V V V V v v V V V V V v v v v v v v v v V V V V V v v V V V V v v

O O G C C C C D O C c o o o c c c o o o o o c o o O S C D O O C D C C ~ r n c c c c e o o ~ C C ~ C D ~ U O C c c m m a c c u c e c o c o m m c c o o c c o c c c c c o o a c c o c r ~ h 7 ~ - ----c - - r r - r - r - r - ~ - c F r N - F N W N N N P ? a W N F W N m N m r

v v V v v

Page 89: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O O G O O O D O O z i 0 ~ 3 0 1 3 0 0 ~ 0 O C D O O O D O ~ O O O O D C o o a o o o m a o a E N ~ ~ O O ~ n o o o a 0 3 0 m k 00000 o o o c o o o o o m a a a o t 0 0 0 0 0 n a a o o P v - m h r h f u w M n m ~ ~ n n r d w r % c m m n m L - N N ~ M o b m n h h h m m v h m h o m a b*. v * \ I m F . - c r .- h - m m

E 0 0 m o m O O O O O 00300 O O O D O 0 0 0 Q 0 O C O O D O O D O O D O 0 0 0 00000 a - r - h - h l ' w O O m 0 0 - r - - r - - M h m h m u 3 m - r m w FINN-N m w m m m W M m O h

a * V C F F C I v v V - -

0 0 0 0 0 OCIOOO o o c o o O C J O ~ Z o c o c o c o o o c O O ~ C ~ a o a o o o o o o o E c c o c o o o m o o D C O O O o c o o o O D P O O 0 0 0 0 0 0 0 3 ~ 3 O D O C ~ t o m o o L c D O C m ~ O ~ C U C ~ o c o o u l r n c m W O w C r . r n ~ o ~ r n O C r r c ? m u u \ r n r - O C m m h O Q . . . . . . . . . . . . . . . . . . . . . . . * * I . ,Z..* * . * Z . I & \ - ~ ~

I W - , -vN- N - m n M - N ~ M w - - N - N - - N F C C - F - - - ~ r e , - - ,-r.- ,- C A ZL

O n 0 0 0 O O O C O O O ~ G G 0 0 0 0 0 O t o a o O C 3 o a 0 a c 3 t 0 0 n m c . O O O O O n o b o a u o o o o c o c v o o o o o o COOCIO C O O O N L A P - P O O O W W - - L . - m n m m b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U

D C O ~ ~ c w c c c T ~ C O C C ~ ~ C O c c c o c O C O O G y c o n c c 2 c ~ o c c o o o z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - I . . . . . . . . . . . . .

u o m m m m mmurnLA c v m m u r n c m m o O C G C L C O P , t h h 0 O C C O C r - N r n c h o m m a m r n P . - . - " - - C r - F - V - 7 - r r r r - - - - - F C C , - c - r r C C 7 -

Page 90: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E ~ O O P O o o a o a o a o o o o m o o o m o o o m o o c m o m m m o o M - r c ~ c N N r s - - r t - r - r -%-r r r - r - F - + V F V C - - P

n v v v v v v

E U O C O C O O C O C C O O O O O C 3 O U O C O O O O O C O C C O O O O a O O D O C m m h m m M ~ W ) U ~ m o r - h c c h - h h L O G O N h o m o c a 0 0 0 m h r w ) em.- F F C P C-FF C - C C

I u \ * * * .P N r - r 2

E a o o c c O G Q C G C O O C O C O O C C O C C O C O C O O O D D W O O 3 ~ ~ 3 3 0 ~ 3 ~ r - M N O P C ~ J O D Q ~ o.mnoc h o m o - h o m m m

o m k - m m ~ n-- m m m w ~ n w w , . - - - - - w m m rd-.-- I u

O C O O O O h O N h C ,-

- C O D 0 0 0 0 0 0 0 O C C O C O C O O O O O C O C Q O W O D 0 0 0 0 C E C C O O C O O m b h O h C C O C C 3 - W . C O O O O O C O C C m D O O C C P C T C C O N C - - w w n n w - - m a w r c n m m h - m w r n m n k

F O U O O C O C O C O P O O C O O C O C C C O O C C r , O C G O C O O a z . . , , . , . . . . . . . Z . . * . . . , . . . . . . . . r . . . . 0 F t F C F C C - , - - C C F " t C - F y .-C.-"-- ? - P . - - .-P.--r,-

I n V V V V V V V V V V V V V V V v V U m

Page 91: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

U 3 E O Z U O Z Z Z O F O 0 0 2 2 0 2 0 0 2 0 Z O Z U O O O O D Z D O O O C O O O D O Z O G O Z c o o 00 0 ~ 9 o u o G O o 9 c o c o c c o o e n o c o o e o w o o .P Q N N T U N N N NN N N N N N Nru N W N ~ N h ~ N r u wNNNrU N N N Y I u l v v v V V V v v v v v v v v v v v v v V V V V V v v V V V v

-' E C C O O G 3 0 P 0 0 r 0 0 0 C C O O C C C C Q C O C C C C t C C C = C C O C C C C C T C C

U d

L1 C w l v l D o O C a D C C C r C C C C C O G C C t C C C O C t m C . C G C U O C 3 r 3 O OL-CJ&C a --,-NN ~ n r i r y ~ m f - l ~ ~ r u n r u r ~ ~ ~ l l lnnnlnm mlnmm, r . w # m n r l v l m r h r m - v r r h

n I y1

Page 92: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 C 3 D 0 3 0 0 3 C C O S C C 3 3 0 0 C O O D D O U O O O C O O O C D O O U 3 D O U Q 3 0 000nn 0 0 0 0 3 o o o o o O O D C J O a o o ~ o o o n u m ooooo O O O D O O D O O ~ O D O O O 30"700 f i O 0 0 0 O h D O h m m O f i " 7 * O h m 0 0 3 m k m m h h O h h h m h - 0 * . * \ * \ \ * . * * * * * , * . . . * * b * I * , * * . m r 7 F r F C C - C F C C - - - W - - - - - - - NN- 7 - F v-

o o o o o c o o o o o o o c o o o o o o o o o o a o o o o w O O O ~ O o o m o o o o o o o o m m m n h h m n m w ~ m b o w + o o o o m h h w m o o o m N ~ C O O O N - W R m m n r u n c r r n r - r r m F C F C N r - 7

o o a o o O O C D D c o o o o o c 0 3 n D O O O O o ~ o n c o o o o c c o c c o o o o o c Q O O O C o o c o o O D O C C C ~ O O L O O C P O o o c o o ononn ~ o c o a o o o c o OF!mmL? C h O C h O m h h O O m m O C DtAbACP C O L > m O m C f i O 0 f i m f i C " 7 m O O m " 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D O C C C C O C C C C G O O C O C C C D L O G 3 0 C C C C C O G C C C C 3 C 0 0 C O O 0 0 O L 7 t C G o t m m t C t C L t O C C D C C O C C G C C C O t G C O t O O C P O C O O O O O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ - n ~ r u mnr - - t r . v . m n ~ w t nrwnen m v r n r r l m m ~ - ? r v n t % v , m v . r i ? mvrmw,m n ~ n n m

O C C C O O O C C O O O C O G O C O O O U C G 5 C CCOOCL 0 0 0 0 0 C O O O C D C O D O V I O C C C C C O ~ O V ~ C C C 0 0 0 0 0 C O ~ O O O m m m c o S O ~ O C C b - F C ? O m 0 0 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . t r " 7 m e m r w r w ~ f - l m m n N r u n N r n m ~ \ N r w r n m e - m n m m k hn-wlh N - - w ~

m - O C C V u u m u

r r \ l W I - N N N N N N

Page 93: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E o o o o m o o o m n m o c o o moorno m w o o o ocoon o o o o - m c ~ w o o o o a f i m a ,,-,.-Nm.- NNn,.-.- F-NNA, .-.-.-.-n . - F C n J N NP-iNN.- N N F N C * N P N N .-N.-C.- n v

E O O V D D acooo o o c o c o c o o ~ o c o w o ooooo o o o o o c ~ a u ~ ooooo a m o c k 0 o k h h o W O O O G O O S O ~ o k m h m N V - ~ ~ Q b m ~ m - r w m m h m m h l m ~ - o D F - - - e - - ~ - r r r r r - c c C I H

.C

z

E o z z zz z z z z z z z z t z z z z o z z z z o o oozzo o z o r o o z o z z r z z o c 0 hl nl n l N N N N N N N r w N Nhl a v v v v v v v v v v v 1 ul n Z

E 0 0 0 0 0 O O U O G O U O C O O O O O C O O U C O 00300 O C O G C DOC300 00000 C k ~ ~ h i r w r n M ~ ~ N M m m n m m m v n v r n h l ~ m m w r - o c h m F C P . ~ - W N * - V I N M I ~ ~ Mflclnm~) n v - C I "l rg A

E 0 0 0 0 0 ~ 0 0 0 0 C O O 0 0 O O O O C o a o w o O W 0 0 0 0 0 0 0 w O O O C O 00000 O 3 h m m m m m m ( C h h k b h m m l C 0 0 0 h ~ ~ m t - l ~ m m m h m m ~ r n r ~ ~ w r r u h b n M O n O n a r u r - r m C r .'- 1 a

E o o c o c m m m m m c o o o o ~ C C D C C D C ~ C c m m n t m o m m c P . . . a . a * . . . . . I . . . . . . . . . . . . I . . . . . . . . . C h w r r r r r - r - C F C F - r - r r - F C ~ F - - - r N r - - - F -

I VI v v V v v V aJ

Page 94: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E ~ O Z O C z r z o o c r o z z z c o c t z z z z z z z z a z t z t z z o z z r z r z z z z a o c n o o c c a C O O o L1 W r V YlrU * C C . N W N N N N W I b V V V V C P 4

c c z v o o c c c c o 00000 S O C O O c c c o o c n ~ o n c ~ a o o n o o o o o c o c o E C C O O C 0 0 3 = C C O O C S C C O G G U G V \ L U C m O G 5 O G O m G C J O V O C ! 0 0 0 0 0 g w m m m m n w - , N ~ ~ - N A q m m r m m w m m n m m - m ~ N - - ~ m mmw,-rn m m r w n m n m ~ m n

E C O C O O O C 3 0 0 O C O C O O C 3 0 0 O G O O O O C C C t O O C O m C O C O C O O O O O O C O m O C 3 C G C O C C U O O C U D C O O O O O C D O C a O D O C C O 3 0 C C G C C O C C n r n ~ r m r u r y m m ~ w N V , ~ ~ N ~ m r u r w w ~ hnt-OP P - m m o m k o m n ~ 0 C ~ m c 0 0 r - m - h 1 L., 5 \ . \ \

Page 95: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 0 0 0 O O O Q O 0 0 0 0 0 0 0 0 0 0 o o o a o 0 0 0 0 3 O O D O O a 0 0 0 0 0 0 0 0 0 E O O O O P 0 0 0 0 0 00!n00 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 U C O O O w o a o o 0 0 0 0 0 P h O 0 O h m r n h u 7 O 0 N 7 3 O O h O h O - 0 0 m 0 & O r - 0 0 r n * h O O P - O O O h 0 m 0 0 m a % Z 8 % , \ b \ \ b , 5 b \ . 4 b 8 . . \ 4 b . b l n - r ~ v r N ~ r - - - + - - - P 7.- 7 - - r lE lV l N r N N - m

E 0 0 0 0 0 D O D O C O O O O O 0 0 0 0 0 O O O D C O C O O Q 0 0 U 0 0 0 0 0 0 0 00200 a w o r n r u m o m h m m o m m o b m o ~ o f i o c m ~ m m m m m m o o o o o m r n a m r n o o o o nu) - PY n N - m n t r W W - w - - - r r - r u r - r w r .-F N c - -

O C Y ~ O C Y 0 0 0 a 0 O O O ~ C o o o o c c o o o o 30030 00cn0 ~ ~ C C O o o u c o E c w c o o 0 0 0 0 0 C O D C O o o o o o O O D C O O U C O O a m o o ~ c o u o o O D O C O n m m m m o o o o o m m m m o h oooa r - k m m o c c o b k c m m m a k o c r - m o c h h c m a \ \ . 8 b b 4 8 b % b h b , * b b * l > \ C b 8 I n c - v - p - , - r - c r . - - , -v- v - 7 ~ - r c r - - 7 - - ru r F - C z

ace r w , - m h - N M M ~ n m F r - r W N r r N r m P r

o o o o c E O O C O o c o o o c c c o o O O O P C I C Q C O C S ~ ~ C O c c o c a o o c o c r o c c o o - O O C C C G C W - c c c c o c h m o m m m m c m c C ~ D O C m o m u r n m ~ k o m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y a * w n n m m ~ W N N N r m m - ~ k - - . - r ~ v r - - - N P - m F N - C N W F ~ 7 - N- I

0 0 c 0 0 CI

I . , . qqqo,? n u o o r c c o s c . c c o z c o o c o c s o c 3 o c c ~ o r o n n o c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u O h h r - Y . O m Y ? m m m O r n m n m m h b m m r c b h m m m m r n h c w ~ r n r . ~ r l r n t r c m ~ e n ~ m m C n r - r - v - C C F

I 01

LL

a4 h r n r h M h O i - e w e k O N h e C a - - e -C -C r . -kor* e k p - 3 . , ~ m k , p a p p - 9 - N - .7.- h r r n m m m r u u .- m e - ? N r - - r u m c n 8 ~ w m - d m r m m - x o . s

Page 96: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E o m m o o o o m o m m m 3 0 0 o o o o o O O O = O c o o o o O C ~ O O O D C O O o m 0 0 0 a - - c c ~ r n - N P C C - ~ N m m o r u n m b m m M m m m n m m m m m n n - D N - m r h m m

N - P I n

E o c 0 3 0 C C O O O U D O O V 0 0 0 0 0 D U U U O O C C C O O C t O O C C U G m C V O C O n r n - h o m o m h m m D U W A ~ o m t - m k r - r - r - r - t - o h m r - r - ~ r - h h r - t -h t - r - - at-,wn .-- - .-7" - - C ry - P

e o ~ t o o z r t z z z z o o o c o o 0 3 o a o o o o o o c o o c o a o o o o o r c o o c o [I NN N T Y N ~ N N - N N N N N N N N N N W N N M N N N N N-P?N ~ N N N ~

v v v v v v V v v V V V v v v v v C I n

E o o c o o D O O O O C O P O O n o 0 0 0 O G O C O o w a o n o o o o o o c o o c o o o o a a r - m n m o o n m r n O U O m w m h ~ - . m h m m r - o m ~ 7 n b m m 3 t - % h ~ q m r - h r - 0 o m h m N P - r r ( h 7 L - - P- f- TU 7-

I m -3'

C O C C O O O O O C G O 0 0 0 O O O F O 0 0 3 7 0 O O G C C C O G C G C S O O C C , O C C O E m ~ o o 0 C w C 2 C u - c ~ c m m C C ~ ~ C n c C 0 O c m b D a o c o u m m r c ~ m m C b m O C c - r ~ q c + h r ~ r u r u - r r u b - - r u - - - r v r ~ r m f v L - S - P - F N O - N X - - m - - v , r w C

P \

I ur N

Page 97: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 0 0 0 O O O O C O O O O C o a o c o O O C O O O O C O O O D O O O C 0 0 0 C S O 0 0 0 E 0 0 m O O 0 h P - C - m m W D 0 O O O C C 00000 P O C I S 0 O C O C O 0 0 3 C h 5 0 3 0 0 P YIP - . - - n m r n n o ~ m m m n m k h n h r u m c o n m a N W ~ W h m ~ m m

E Z = Z 2 Z O Z Z Z Z C Z Z Z Z Z T Z O Z Z Z Z Z Z Z Z Z Z Z Z Z T Z Z Z Z D C C J C O C O O a o o o 000 O U O O O P V1 0 N r v r . , r V TUk'"lr4N

I vl v v v v v v v

E O O C C O U U O O O O O O D O O C 0 0 0 O C O O D O O O 5 C ' C C O U O C . D O O 0 00000 a m m m m m h w m w n m ~ , n m n f i m n m m m m m m m ~ ~ L - M M m ~ w , m m n m h m n L U ' P - ~ ~ n 111 1

E O O D C S G ~ ~ C C C = = C C 30002 c o c c c 3 0 c = 0 ~ c r c n o c u c o o o c c o c C O C P C o c c c c o o c o c C ~ O ~ O o a c o m c ~ n r r ~ c o c m o o ~ c c c v, r rooo P h P - l L O M m l w h ( c C j m m N i W h l Nv---- r - - v r - - m - - - - N.--w-- - c c - ~ " v N l W N I "l 5 L .- .- Y)

Page 98: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E YIP I-VI VI m O h m U7 mmClVI O m In tn VI U ? y l C > . . . . . . . . . . . . . . C I Z z z z . 5 Z Z Z Z . . z . z .tzz 2 2 2 2 2 Z Z .Z . z n V V V V N v V v c + c V V V V

D C O U O C O O 0 0 O D C O O O O O O O n o o c c 0 0 0 0 0 O O O W O 0 0 0 0 0 O C 3 0 0 E o c o c c G O O O W c c a ~ o o o c c o c o a c 3 c o c o c cococ o o c s o c c o o o O Ol.OL?C h D 0 l . O h O L A O * m b r . Q m C O b m 3 h m t n o a C O r n O C h0t.mL-I & O r - u - 0 C1 . b . S 5 S 8 8 . * .. 8 S ' b b S b \ 8 5 . 8 S I ur - C T F - - r . - m W F n m 7 - r.-n- r u - r r - 7 -

O C O C O 10000 0 0 0 0 0 C3OCWO U O O L C C O C C G O U Z O D 0 0 0 - m 00000 w r - n n m m n n m m n m U h h h i - - C o h o m i - - * o h t n m h t r ~ C C c - h ~ r 3 r n - r r u r - n e w s ,J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O O O O C C O O C O O C D O O 0 0 0 0 0 C r 7 C O C Z C C Z C 3 C O L C D O C - D O O C O O G- r - m h o o h h o m n v \ k ~ u \ o k h r . 0 0 O C C . C L m r c m m ~ 3 p 7 v . m o a n n w . t ~ m m m h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V O u r - N r - r r CIN Kilo-N --n N N Y - - N N ~ - - - ,- 7

I a u-

Page 99: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O U C 3 0 W O O D O 3 0 0 0 C C o C C C O O C O O 0 0 0 0 0 O C O U O *moo* * O O h O ~ N W C ~ - m r - b m h h b m b m m t h m n m h o w m - m r - o o r -no0 - - r .-m- rc

C - 7- r - - - r - r -r,-

00003 z z t c o O O C O O 0 0 0 2 2 0 0 = 0 z Z Z Z Z Z z a z z o a z z z z C C Z O O N N N N ~ rum r u ~ t w ~ r y rumm T V N N cv ~ J N mru mru

v v v v v v v v v v V v v v v

E o o o o c c o o c o O D U O C o o c o o o o r z o o o o o r z c o o o o z o o n o o o o o 0 C n O o m m m m c o 0 C N t . C b -LhPJ rn m D I. Nr""-rn n - 7 - F - - r - " Fr

h Y N n J m h h m OhlRrn+ r v ,- V r V -

I * m J

E O O O P C O m 0 0 0 OOCYOC 0 0 0 C 0 C O O 0 0 O O O C O O C O O C m m 0 D P - m C ? O h O C r - m w k ? - - P - r - P - m o O C m O h C L - h - + h C m 7YCC3,P n C - L n h - v - . - L

v r u - b- r N m N - 7 n- F N - W - m - v C

I U

E o a o a o m o o 0 0 c o c c c o o o c w o c o c o t r o c o n ~ c c o m o m o w 0 0 2 m r a M N N W ~ ~ + rumw,m m n m h n m m m r u n m n ~ k m w m m m m b m m r n m c r - - , -N- -F , (I I n 0 U

F ~ Y . O C ~ m Q ~ l ; n t O L - O ~ C W + * U - C S = c o r n C = C . C C C I C ~ C O I ~ C : C C ~ m r r o l n ~ fi . . . 1 . 1 1 . 1 1 * * a * . . . . I . I . . . . . . . I . . . . . . I . . . . . . . . . 0 r - n h r N N - r & N r r r r - r - - - - - - r r - 7 - - - r r - - r r - r m c r r - - a I n v v v v v v & m

Page 100: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 02000 o c o o o D O C O O D O C D O o o a ~ o o c o o o o w n o o c z z t z W O O O O 0 0 D 3 0 O D O P C C O O O O czoo- O C C C O O O O O D c = o o o C C ( 5 O O O Q nl N W N h l N T U N W N N N N N M V I + N N N h ' h l N W h C I W N r u N N N N N N W N N h l N

I R V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V C

O O C C G COOC' = e m 0 0 c o o c o c c c c n o c o c c c n c o c c o o c c o o o o o m u b - G m O C W O C m m O C O 3 C C O C C C L C W O G O C C u O C 7 D C C m C C 3 O O O m G . - m r f v r - - - r N r - k r - m n + o m m m m m h m m v w m m h b m M m h - m ~ r ~ m f w v m

a w s I C >

Page 101: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 102: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 00000 0 0 0 ~ 0 00000 0 0 m 0 m O O m O O 00000 00000 0 0 m o m o o ooo a ~ ~ . - - r u - N N - - r w ~ ~ ~ - - - N - M O - N N C O N ~ N ~ ~ N M N v r - ~ r m n n m m a v - C - I UI

E O C O O O O O O G O m h 0 0 0 0 0 m O m C O O 0 0 O C G O O 00000 V O n 0 0 00000 u h r - m h m h W 3 0 m n m o r n r m - h m m m m + h h b m m m n m h c 2 m - n O r - b k k R n - P c N r - l M

L z z z o o ooooz Z I O O O 2 2 2 0 2 G O O O O coo00 o o o w o z t z z z a o o o o a N N m r u l y ~ N N l~ N n m n w w ~ n n m c w r v w w m NNhlhlN

(i v v v v V V v v v v v - v I b

z z z z o O D D O C Z ~ C C O o c o o c o o c o o ~ c o c o o n u o o o z z o o o o o o o r c U - K O ~ N m h ~ k m w r - m h O N R O ~ ~ C ~ D C h b ~ m h N rum c n h m r - C - v rrl v + - F - 7 - + V v C

1 m

E o o o o o o o o o c m h m c o tnoooo o o c o o c a o o c c3cacz c o a o u u m a o n a L m m m w m m m m w r n m r t ~ F i m n r v n n n n m m ~ r n ~ ~ n ~ m t . - h r n ~ n - m m ~ a

c c c c o c m v - c c c m c t v r v w . 0 ~ ~ C ~ C S ~ - o n o o ~ G C Y ~ O n n r ~ c t O C C U O n . . . . . . . . I . . . I . . . . . . I * . . . . . . . . . . . . . . . . . . 1 . . . . . p r r c r n - r e - - r -nhl- r u - r h - h - r N m - f u m F m N t u h M m r r r r - M N m N t U I M V V V V V V V V

Page 103: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

o o o o o 00000 O C 0 0 3 O P c 3 C C C O O 0 0 O 0 0 3 C 0003t 3 3 0 3 6 C 0 0 a 0 E ~ 7 h m P - C 0 0 0 U 7 m 00300 O L O C O 09330 O O C O C O t C O O O h m W d O D 0 0 a P ~1 W N ~ - - r y . - ry ton M N W N m w m m l n v \ n r , v i h f i m m n n R* W M . ~ N N

E o o o c o o o o o z Z T O Z O z o o o o c o w o o c o c o o o o o o o o o o o o ~ a m o a n o o o o a o c o o D n o o o a o o o o c o c = c o O D C O ~ Z C O ~ ~ ~ C O C C L1 fisNrUhlN N N N N nJ N W N N W L ' R N W N N N N N r J N h W N N N N N N N hk4N#nbl I YI V V V V V v v v V v v v v v V V V V V v v v v v v v v v v V V V V V v v v

E O C G O O O O O D O m 0 0 0 C 0 m O C 7 0 O C O O O O C C O O O O G O O 0 0 C 3 G O D C O C P N N W N R n m m m n c r u ~ m m N - N ~ ~ N n r u ~ n m m m m r u m k m h m w , w r n m n ~ h W h w m n n I r

O = C O C c c o o c n o c a o o o o c o z c o o c o c o ~ o o c o o o o o o o o c c o c c E 3000- O O O O W ! h b m P C m O V ! U C . 0 U > 3 0 F C L T m S m ~ w ~ C ~ C V ' C 3 C C 3 b 7 C C G O P m ~ c m - m n m n r m - . - m m L VP.*V - - - r r - v r w m - r w , m r n ~ F - - N N

E O O O C O G O O G C 0 0 0 3 0 O O O C C O C 3 C C O C C S ? 3 C Z t U t 0 3 C 0 C C C Z C a o o c o a o o o c m o o o o c o m c c c n c c m o u o c o c occoo s c o o o o c a c o P L n h m m - W ~ M W M + h m m b n r u v w . l n h - - - - - - - - r r - - - - - w , m n m n r r r e -

Page 104: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

i. o o o w o o n c o o o o o o o 0~3303 70030 O Q O U O c i r ~ r 3 c ~ O O ~ T O C J V O I ~ O E O O D O O O ~ O O O O O O O D O O O D O D O O ~ O 00000 a o o n o c ' o ~ ~ o o o ~ o o

0 0 o m m h m m 0 a ~ O O ~ W - m n m m m h n m 0 0 a n o m 0 m o o a n h n a o g o m o h - ....... . , . , , . h . b * k h h a * \ * * . * h * . . * . h , . % h * ( u l n m r r r - r N - - W m - r r m r r - w r N m v r m ~ r N - m N W r r m r - r r r

m A A m

e o o o o o o o o o o ooooo o o o o o o o o o o o o o o o o o o o o u o a o o o o o o o 0 + + 0 0 m Ohrnt-O OOr-Oh m N m w h vrt.mvr0 W m m O M m m - m m m o n m w m h o o m n vr +J - N C r F - - r r r P .- C - - 1

E I.- o m ~ q , n m m m m m m m m o VI yl o m Y I Y ~ m m m m m o . . . . . . . . . . . . . . . . . . n * t t ~ z * = * .z z * Z X 2 2 .z * Z Z Z z .ZZ t a vrv v v v v V v v - v c V V v v -

00030 00030 OOO'OD c o o o o o o o o o o o o o o o n c o o c ~ o n c oc looo E o a o o o o o o o o ooocc c o o o o o o o o c 00000 00000 o o o o a n o 0 0 0 n r - h w h m m o w m l c m m o k o r-000h ht-00~- o h h h h pcrcwkm w m r - b h her-Om

O C O O C 3 C O O O 00000 D P D m S O U O C C O C C O C O O C O O O O C C Z rcoscv , m n o ~ n v r m m v , w m ~ 7 ~ m - w r c m m m ~ n o b n n ~ m m m o h mhw.mrn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

r c - N - - - v - - c r -

O C i O C C C D O D C C O G 0 0 C C C C C C O D 0 0 O O C O O O C C O C C O C O O h m o c v r rntOCD o m m m m 0 0 v - w m 0 0 m F 0 m m c m o D C O L n m O O m h m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

r E U r , . - T r U V I M n F . -N - W N . - . - N r . - r v - N NVN.-.- ,-.%I.-

. 00000 O O O O q = C O O 0 C C Y C O 2 O D C W C C D O O C . 0 3 C O C C C O O C 3 O P 0 0 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y . . . . . . . . . u m v r d h m m v r m m m LnvrWmm h h L O P - W h m W m C P - G O O O D C O O W h h h h m O m M V i a n - - C r r c c r r r f - C C 1

C 0 U U G U U U U Q V U - ? Q e U G < U Y U < U < * - f x - U U U U U - 3 U U U e - 7 U e U U e - 7 U U - f

U e G U U U U U U U Ue-YV%* U Q U G U U U U U . 3 UYU+:U U-Y**fe . d q U U U U U U U U 7-,-,,-.- .-,-,-.-r - - , - C - P r C P C P , - . - .---.-- T - V - C C r C C . - C C

Page 105: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E O O O C O 0 0 3 C O O C O O O 2 0 0 0 0 0 0 0 0 0 O O O O Z 0 0 0 0 0 0 0 0 0 0 O O C C O a N N ~ N N W N W W N W N N N N n w m n W N M ~ ~ NNNN N N ~ N N R , N W N ~ N ~ N N N 0 V v v v v v v v v V v v V I n

E 0 0 0 0 0 O C S O O 0 0 0 0 a O C O O O O O O O C 0 0 0 0 5 O O O O O O O G O O O O a O Q P O k A S O m nCU7hP- m0-F -P - m P - P h C 3 0 Q C O U + O * W 0 0 0 - C O U 7 b O h 3 0 h P - W ! a - 7 - - - - c---- - + - F V - 7 - f,- 7 F "

l ur m d

E 00000 0 0 0 0 0 O O O C O C O O C O O C C D O O O C O O 0 0 0 0 0 0 0 0 C 3 0 O O O C V t a o w m ' n n ~ ~ L L L I ~ r - m o h m c k o t n ~ - o o h r - h ~ ~ m n k r n h ~ m m h n ~ m v -hbnr CL ~r + r 7 - 7 r- - M I n Q 7 U 4

O O O O C O O C O C C O C O O O C O O O O O O C O O U C C 3 C C O D C 0 3 0 0 0 0 0 0 0 0 m o ~ m m O C ~ ~ G m ~ m m r n b a r - o h , h o o o m ~ P - ~ C C G m m r c k h O ~ O C ~ ~ ~ O O O N h - m . - - v - N C + - r r - r c v- 7 -7- FC- r.- r ru r N - r

n

Qd < 4 m m w P W w m m v m W p v y y Y C D W , V a w m m u , m m Y w C V m m W m w ~ W m u > c L ? m m m c Y C L S C - n c r --.- L - , - ~ - T D - V C C - T ~ c . r c ' 5 1 ~ 3 ~ . - f v C - * r I r f - f d V - 3 u u u u ~ w r r ~ . r r L T L - P W W - C c < e C L C < < * r ^ k ~ P - I c 4 , c C 1 . 3 ; ' ~ 1 &

Page 106: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20
Page 107: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 o 0 n O O O U O O O n O c o o o n o o a o o o ~ n a n 0 0 0 0 0 0 o o o o a o c o o o 0 3 a o a o n n o c o o o o a u o a a o a o o o o r - m m o g 0 m 0 0 m o n a m o 3 m o m r ~ n - m m m o m m a h m m o y l m . . . . . . . . . . . . . . . . . . b . h \ \ b % C b b * *

r r r w N - m r - r N n V I N n - W - N c - r r - w - ~ r - r - r -

h

O O O O Q O O O W O O O O O O O O C O C O O O C O i Y m 0 0 0 00000 m o o o m b m n ~ n n h m n m m m c o w m m m n o m M r M m N r O D D O

w.m m ,Am+ m Y'yl L n "-, Ln m yl . . 2 . r z . . z z . Z . . Z * z z . Z Z . 2 I Z z z z t z .z * Z Z v v v V v v v v v

00000 O O O O O O O O O O O O O C O 00000 00=00 O O O O C O O O O C O O O O O 0 0 C C 0 C O C O O D a O O C U W G C O C O U O O coomt. Dl'.hhk O l t n h h Lhr.mw O C C O m t .OrnC9 C * O C O

C h % C l < C 8 x . 5 . \ ,. * \ . * I r - r r c r r N - r + - N n!N I U - - ~ -

O O C O O 0 0 C 0 0 E 0 0 0 0 0 C O O 0 0 n o m - r - r - O O h R h 0 . . . b I vl r - - r C r

O O O C O O C O D O O G C O D 0 0 0 0 0 0 0 0 G D 0 0 0 0 0 O O O G O n h h t . 0 h h m m m ~ C L ~ F o h r ~ r ~ t . h ~ m r - o m a w 0 0 o b m y l m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C ' S C O O C G C C C C C 3 0 3 0 3 C C 3 m O C C G C O O C G O C O O O m m F C m u M k + b n h m N m R G h N - h - C O C C O D O C O . C O = m a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O C ~ ~ O O C O C C C O O C O O O O O O O U O O O C O D O C O O O C O c m t t m C m m b h c m r , m Y ' 3W.OtAh 0 0 m 0 0 t o n o t D C C G , A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 108: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E C D U G O O O C G C C S C C O O C O O O O C C C C O O C O O 0 0 - 0 0 - O m 0 0 - 0 O P P a * - m u - + h t m m m m u , + m w h r . h ~ ~ m k k h + 0 m r - o b r - a v m m D h m - m h m m CI 7 - C ,-- 7 - - r ,- r- I n

E D O 0 0 0 O C O O O 00000 0 0 0 0 0 O W G O O C O C O C O O Z Z O O O Z O D O O Z D O G n m n n n n ~ m r u w m n n n n N N N N ~ ~ u - m n m m m n n ~ n w N N N N N NN NN D V V V v v v v v v v

E G O O O O C O O O C C 0 0 5 C O D O W O D O C 0 0 a h m h h m O ~ Y ~ A N ~ C ~ C m - c n ~ m n c n " c - - 7 7 - m v - c - 1 1 1 1

O O G ~ D 3 ~ ~ 0 0 c o o n c c o o o o m o o c h C O ~ O C m t n c a c o r n o m - - - - .-r. W Y r. Y r r - N m - N C

E C C ~ C P ~ l r n c m n C O C V . C c c o c c C C . C Z C ~ c u c . ~ . ~ C C O C O O ~ C C V ~ C ~ O C C . . . . I I . . . . I . . . . . * . I . . . . . I I * . . . . . . . . . . . . . . . . I . Q w m - ~ N N r N - N W r w N - V N r u f u r r u w r d ~ m c x N N m N - N - - 7 - ~ r - e e r - n r u N I y. v v v 0, D

Page 109: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 3 0 0 9 0 0 0 0 0 D o P O O O C O O O 0 0 0 0 0 0 0 0 0 0 E o c o o o o o o o o C O C C D o n m o o o o c o o o o o o o n m n r u ~ o m o n m r , h ~ n m m r v o ~ o o ~ k m n m m r - n m m a * % . * * l ur r " - .-- L A N

P 0, 3 E O O G C D O D C O C 2 0 0 0 0 0 0 0 2 2 D O 0 0 0 0 0 0 0 0 c a D O G C C o o c o c O G ~ O o o c o o c o o O O O L C ,- Q N N N N ~ J N N O J N N N N N W NNP- NNhCIN f w m r u m r ~ U I m v v v v V V v v v v v v v V V V V V V V V

D w E C G O O O o o o o o o o o o c 0 0 0 0 0 O O O ~ W o o o o c n a m h m n m c k ~ m h ~ m m m h m i - m m m m o m n - m m h m m

n n F

u w ~ O C C C o c c o o o c o o o C O D O W c n c c c o o o c o Wi E - c S G m - C C m C m 0 0 0 m O 0 m 0 m ~ ? m o o 0 0 m m 0 m w

e w ~ w - - NMCNIL W T Y ~ ~ N + - , . - r u r - , - r ~ n m r ~ . - - m - E P lh m I U > C C1

Y)

W C C ' C I O C C C O O NYInJIcYl

N E O O O O ~ c o c o c o o o o o o o c o c o o o o c U O O G O

a~ n c o o o c O C ~ O C t m m o m C C C G ~ G C O O O m c c m m - G N N P c - - r e - x - W l r - r r N-ems- N r - w - r - N - r 9 I YI v v v v m C k- Y)

CIc?CCO O O C O O C C C O O 0 0 1 3 m o r c m m h P - h p c w - N

E c O G O C O O O G O C O O C O G ooonc, c c o c c c c c c o

~ L T ~ N O J M V - N ~ N m r c l m ~ n r n r v ~ ~ ~ ~ c ~ r m n m m n n r n n r u I vr Y n

Page 110: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

ooooo o o o o o o o o o o o o o o o 0 0 3 0 0 O D O C O 3 0 0 r ~ o O : > O O O a 0 3 0 0 E OD000 0 0 0 0 0 03000 C O O O Q 0 0 a a o O O Q O C 0 = 0 0 0 0 0 0 0 0 0 0 0 0 0 a h m m m o Q C J ~ O Q * a h o m O O ~ C J C Y o o k o ~ N F O ~ ~ m h o u h b h m m m + d h n b

G O O O O O O C O O O O ~ O O o c o w o C O Q O O 00000 o u o o o n o w o o o o o w o E O C O O C O O C O C T 00000 0 0 0 0 0 O O O O O O O G 3 0 C O D S O D S C C O O O D O O Q m o c m c O Y C O r n L n O 0 ~ 0 o c o m m m m o o m O C O D L " c m o m c m m m c m m m m m o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I - r r c - - - r - - c ~ J N N ~ 7 - r ~ - C - - - - v - - - - F - - - - - - - - - - - r r r N E €

C D G O C C J C C O G o c o o o o o o o c O O ~ D O o o a o o o o n o o a c o o o 0 0 0 0 0 w h R m R l k m m r n r + o C O O O O O C D O O C O k h O M h m h c r n C r n r . 0 O O h n m h l - m u - , M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y a n - . - r -CC -.--,-,- - - 7 - c - 7

I A A h A A A A h h cg

.- Q h 4

O C O O C 0 O C C - T . . . . . iYMhttc.2l

C O O O O . . . . . V,r.hC& .-

O O C O C . . I . ,

C C G O O 'UN.-.--

O C O O C . . . . . 3 C O D h v r c c

O O O O D c q o o c . I . .

m m h h O 7 - ru

Page 111: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E W O C O O O U O U O O U C U C J C O O U O 00000 t O O C C 0 0 0 0 0 G O C O O O O C C O # / ? - O m * OiWU!hP- P - W O O 0 O O O h t O O h O O 0 0 0 0 0 m 0 U O h h O O M O O m b k * c - r - r r - ,we - - r - F - C - O W N N N r m n n r - r r -

E 0 0 0 0 0 O O D D a 0 0 3 0 0 0 3 C Q 0 0 0 0 2 2 Z Z Z Z Z Z Z Z Z O E O Z Z Z O a Z Z Z D W N R J N N N N N N N N W N W N N N N N N m m N N N N -4 a v v v v v v v v v v v V v v v v V I n 0 z

E C C O O O 0 0 0 0 0 O O C C O O O G 0 3 C O G O O O O C O O O t U C C i 0 0 C 5 3 0 0 0 0 0 a c c c o o P- NO^- h - r n ~ o m m c a h h m m m w N ~ ~ N W N ~ N ~ M m m m r N ~ ~ N N C c ~ . - - F r N - -.--7

I n m A

E V ~ O C Q C C O C C G G C C C c c c s c 0 0 - C D D C G O C O O O D D C D C O G O P D ~ D a . . . . I . . . . . . , . . . . , . . , , . . . a . . . . . , . . . , . . , , . . . . . . P - - N N h m v - N r N - c ~ w N X ~ N ~ V N t - - - r r r r r - r -%-r - r - r - r r r - r - I '" V v v v V V V V V V V v v v v v v v v v V 0

Page 112: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

0 0 0 0 a 0 0 0 0 0 O O O D O a O u o c 3 0 0 0 0 0 O O O O C 0 0 0 0 0 3 0 0 0 3 00000 E G O O G O 0 0 Q O P 0 0 0 0 0 C a O C O 0 0 0 3 0 N o P - W D h O h P - 0 3 0 0 - h W O h h O P F M P ~ ~ m f l m - l n O D ~ N N V I W N M F - N N ~ C M - 7 .- r M-%- r 7 .- n I

E Z O L O Z Z Z O Z Z 2 E t X Z Z Z Z O O X Z Z Z Z O Z Z Z Z 2 2 0 2 0 0 2 0 0 2 Z Z Z Z Z c o 0 o 0 0 o e c o o o rI N N ru mru N N Tu rU NN 1 1 1 1 v V V v v v v v

c m o o o o o c o o 30000 C30#3oo o o o o o o 5 c o o c o o m o C J w o o o n r m m m v r v l m h v \ r c h v r h t n m v r n c ? m r r n m ~ , m n M m r n n v l ~ n ~ n ~ K I V I M Y ~

N

E o c o o o C J O C O O o o w a o c c c o c o o c n c c c o c c o a e o c o n c o o o o c o o U CL C ~ O C ~ 0 0 m m m L - V ~ ~ C 0 ~ ~ 0 0 D D ~ U G ~ ~ O C G O O G ~ O C Z O C C O c ~ C C O - a v\,-NN- P r - - C - - r - N N N N t U w h m + - m m P h ? C " - m F,WlfUhM m N V l N m MmWtWWl 0 1 1 1 1 v

Page 113: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

n n o c c o c o a o c o o o o e o c c c o o o o c n o o c c c a o c o n o o c o o w c o o C1 O O O O C t n I C C O C C O N C C O h n O O U

p n N ~ ~ L - N - m m m m G ~ L - m n m - M Y ~ ~ m - h f l m m w r u N + I ~ ~ M N V N ~ N m m ~ m r ~

4 u C N e + + n a P r - v arcnu.< v v r m m b w x m - o P ~ c . - n F r , m o : r - r c w - 7 c r c e w .F - - - v G J U U U - 3 G U m J G m Y b l mrn-7e +.TU<GU U G V M <

Page 114: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E Z Z O Z Z Z T Z Z Z Z Z Z Z Z Z O Z O Z C O O O O 00000 0 0 t 0 Z O O Z O O 0 0 0 0 Z P N N N N N m N n N N N N N N N N N N h m W K N N

0 V v v V V V V V V V V V V v v v v v v v v v

- O O O O C O C 3 C O 0 0 0 0 0 O G 0 0 0 O O O Q W 00000 O O O O a 0 0 C C O 0 0 3 C 0 E o o o c o c c s c o O W O O O o m m o ~ m m 0 3 ~ ~ 3 0 0 0 o c o u o ~ ~ P C J - C O O C D a ~ n m m r ~ C S , C O o o o r ~ 0 r ~ w - - N N N N M ~ Y W m ~ ~ h m r i n - k m r R m m h ~ rn % . h * % .

E o c o o c o o o o c o o o r c o o a ~ - o o o c m c o o c o c o c o ~ o c m o o c o c o c o P r m o m m m c m m h k n m m m - ~ - n ~ N N . - N w r n ~ n r n m n m r c i m w r h l m m u b m m c n a .- I n 0 U

E O C O O O C O O 0 0 C G C O C O C C O m C C C 6 m C m C C C C C - O C C D C m O C O C C O C . . . . . . . . . . . . . . . ' I . . . I . . . . I . , . . L . . . . I . . , . . . . I .

L r r - - + . r r r h r r r r r r r r N r r w r w ~ ~ r ~ r N r I U R - R n r N r n n w N r - N m n r C + I * v v v v V V V v V V V U m

Page 115: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O O D Q o u ~ a o o o o o o o o c o o 3 o o c o o o c o o o ~ o o o o g o s o o o o o o E m k h S b D m h O m b h h r ' l O C o r n 0 0 O O = C O 0 0 0 0 m O D o O D C O h O O D O O O O a N N- - r N - ~ W N m m r u n m L - S F U O N ~ N W - N - ~ m ~ t n N ~ N - W ! a s I W -

E z z z x z z z ~ a o o z z z z a x z z z z z t z z z z z z o o ~ o z c z t o o t Z O O D O Q Y O 0 0 3 C O 0 0 0 O C C 3 a N P J N N N N ~ n N N Y N W N I * V V V V v v v v V V V V

o c c c c c m o c 3 C O C O ~ Y o c o o o C C Y O O C D C D O O O O ~ C C s r o n c c c o o o e c o o o c o u c o o c c o c o C O W ~ O C o o c o o o c c o c c c u o o c o a o o u o n o o 4 c c r - m a N r ~ ~ - m r n ruwlhv~m r ~ m r n m n r u m v , r ~ ) ~ N N N W N T U N ~ M N a w %

E c o c o c 0 2 0 0 0 C O D O ~ o c n o ~ c o o n o 0 3 3 ~ ~ c c n n c O C ~ O ~ c o c o o n O C O O t C C C O O C C C O O t m m c o O C C O O C C O O C C O C O C 3 0 3 c o m OrnurCCl a m r n ~ m m n n n m m m m a - n m - . - m m m m m m m m m m n m n m ~ h m m v b m - ~ . - r n -

Page 116: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

00300 o o o o a o o o o o O O O ~ C Y 0 0 0 3 n O O D O O o n o o o o o o ~ n 0 0 0 0 0 E O O U ~ O o o o o o o o o o w O O ~ D O O O O D O O P O O D u a o o o 0 0 0 0 0 D O ~ O O

, n m L " o o b o r n o m 0 m l L u l r n *anoLn LnmmLnm 0u30Ln ! . " m m m m a m m h n r - N m n h N a ..... s . s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I n ~ C F ~ C r - r r -- r r V N N N F - - - - - N v r - r r r - - - - w r r m m

E o o o o c o o o a a o o o o o o m o o c o w o o o o o o o o o o o o o o o o o o o o o o o P O f l C m m W W W 6 0 0 h O m O m h7rLn-b h C C 3 m m m h h h h h O h h m O u l m O C O h b O N a m .- - - - N - - C - n~ - - ,- I [5

0 0 0 0 3 O O O O C C O O O O O o O O G O C O O U 0 3 C 0 0 0 0 0 0 0 ~ O O O P O D 0 0 0 E D O O D O o o o o s o w o o c C O D O O c o o o o o o c o c C C J O O O ~ O O O C o o o o o P O O n t O m m m - 3 O O O h W r - 0 0 - D n h m h m r - 0 - C O o m o h 0 m R b o 0 m h m k m P . . . . . . . . . . I . b b % . , . . . . . . . . . .

. O c C O O o o c c c e o o c o o o c m o C C C C C c c o o o O O O O O t c o o o 0 0 0 0 m u ~ C ~ D O O ~ C D O ~ m c b t m L ~ C L C m c o b m c m r r . o ~ m r m o w c h h c o ~ k m o r . . . . . u . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 0 r m - h r W C N N N - N P F - P - F . -NW r - r r r c e - c r u W t r P

. o a o o o o o o o o o o o c c o c c r n o ~ o c m m o c c o c . c c o o c o m o o o h 3 m 0 0 CI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u ~ ~ M C C ~ c i m o m r u m n m m rut-- ,%-,n m m m - ~ V J W I ~ ~ W n n m m m m - m m m N ~ N - P v r r r - N r r I

Page 117: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

o o a z z Z Z Z W G o o o o o o z o z z z a z z r z z o m z z c o o o NNN rum ' U ~ N ~ N N ru ru N N r u r v c v r u . . V V V v v v v v v v v v v v v v v

o o o a o D ~ ~ - O N c o s a o ~ m m m r r ,

r

o c m c c 7 O C O C O r - m m m m h r - m m o 000hh c m o c m CJCOrnO N m - m m w f l r n m w 7 - - - r N ~ N Y I , - . - r ~ r u - N N . - - N

Page 118: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

o c o o c 0 0 0 ~ 3 o o o o o 3 0 ~ 0 4 o o z u o O O ~ O O o o o o o o o o o o 3 0 ~ 0 0 E o o c o o o r -000 c o o o o o n o ~ o o o c o o c n o o o o o o a o o w o o a t-omo- Q W N N N N n r u m 0 m c m ~ r n o m c m o - - ~ m r u m m f w n ~ n m wrnobrn w ~ n m f u r v - w a . \ . . I * - - - - v - C A n n A N

o o o z r O O C r u N N

C C O O O O O O O C o r - u m m h O * O f - w 7 - r C C

C O C O C c o m o o r V r r L n r -

C C C O C D O C O C O O O O C C C C O C O C C C C O C O C C m m m m d n n h n n P-mrwW~m

E a m o m a c ccb-co k - o m w m m m h c c c c c c w o c m ~ o o o m c ~ k t m r w m ~ m m a . - m r m m m -.-.-.- - rq m + h f i t , - - c m h - r r ~ n h s c ~ N - T N r r r I VI U VI

Page 119: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0 0 0 0 0 o o o o a 0 0 0 0 0 0 0 0 0 C O W O C O O O W O O O O O C O 0 0 0 0 0 0 0 0 0 0 O h h O r c V I r r r m o t - 0 o o c o o o r c w r c r - o w - w " l O V r h O h o r - 0 0 0 h lcmr .0 O v I O h O n ur " C - - - C C - " 7 - - - "'- f- " ,-.-.- C c rp . P

D O O O O 0 0 C 0 0 0 9 O O C 00000 o c o w o 0 0 0 0 0 O W 0 0 3 0 0 9 0 0 00000 E OCiCYCO C O O 0 0 0 0 0 0 0 C O D O O O O C O C O O C U O C O O 0 0 O O O D O 09000 P W ~ Z Y C O m m o ~ q w ~ O O C C m o t - m c h o c h m ~ U O O W , o m m n o m o o o r - n w m c a . . . . . . . . a \ * * * s . . % t . * * a * \ % 8 & % % * I rn - v - ~ . - - - r r u r r r r r - 7 t -In,- - - - n - r r r ,-PC.-

C

r O O C O O 00033 c O c C C 0 ~ 0 0 3 O o c o o O G G O O c ~ z c o o o o o c 0012oC. y c c m o m m m m a t c m m o c o o o m o i - c m b m m m o o h o h m c o c m o w c b m r - w n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V

? m F N C W C - - c - - - - F - - - r r r~ - - W v - - .- - - N - m U - . O O O O P O C O O O o w c o c O C O C O 0 3 0 C O O C O C C C C C O O c C I c o a G O W O O r h b r - O r - m w c n m h o o h b r-or-oh w o o m o ~ - 0 C m m h h h m m m h m m w r n h m m W I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U

. a o o n o c o o 3 0 c o c o o ~ O O G O o o c o o o o o o o O O O C G o c n m o m o o o m CI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u M N ~ Y I T , h m m n w n m l c n ~ w ~ m n m m m ~ w ~ m r u r - m w v . m m m r . ~ ~ h , n m - ~ - w , w n r n m I @ LC

Page 120: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E G O O O O 0 0 D 0 0 U O O C O O O C C C O C C D O O O O O C O O O C S C O C O C O O C O U n m b r - ~ ~ m r n w , ~ m ~ a m n m m u > r - w n m ~ m m m m m ~ m w c r b r v ~ m h r - m t o m r - n n ~

P - r

E Z Z Z Z Z O Z O ' Z Z Z O Z L 02000 Z Z t Z W Z O Z Z Z 0 Z 0 Z O O Z D Z D 20000 0 N N N h f U W N N N N W N N N N hl N N N W n v v V V V V v v v v v v v v v v v v

E m m o o w ~ m t w - o m o o o m n o m o c m o o c c ~ - o o w * o o c m o o w m o m u o 3 m o G r r N n + 1 - 7 - N - N i - h m h - m w r n N ~ N f u r N r r v n - r N N N r W N N F - P ~ m - - r n l m 0 U

t O O D C P O m V l c m C m m c m m O L P ~ F I T ' G o m m o C o m C Y , m m C L n m v roC,b -m m t v r o v r P . . . . . . . I . . I . . . . . I . . . . . . . . . . I . . . . . . . . . . . a . . . . . G M N r d - m t - c ~ h - - - - r C C - C - ~ h - - h l % N r N - - r N - - ~ t u N - f rP?cN- I u, U (C

Page 121: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

o o o o o 00000 o o u o o a 0 3 0 0 o o o o w o o o o o O O O ~ O C O O O D o o o o o E ~ ~ C C O 0 n c 0 0 o o c ~ a o o o o o o o o o o c o o c ~ c o o ~ o 0 3 0 0 0 m 3 0 0 0 O r - m m m OmCrufu u r n b m f u v n l m w r - ~ m m w Y I n m m m h l t c m b r u h OUImmIC .-WCLhm a . * I L - *I - - C

L A N

C O O C 3 C C O C O C O O C C L ? = O C w , - - r V - - r N K N -

O C C C C C C Z C C U O C O ~ caC;cc ,-,,-n,-- Nrul .7 ,Yh

o c o c c n c o o o c o c o c n o c o c w ~ m m m n w m m m m n n m ~ m W + m m

O G C C C C O C C O C C C O C O C O C C 0 0 C 7 0 L n P O U O C 3 b - P C O C O L - C N N N N N . - . - ~ . - m - f i - - . - ~ r m - r n

Page 122: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E O O C O ~ C D D O O o o c o o o o n a o o c o c o o o c o c o o o o o o o o o o ~ o o o o n 0 0 m 0 0 ~ U O O C h o m o h m o a n h ~ o m m h m ~ r n m w m o o o h o o m m o o o m o o pUI .-r r - , - r v P l r c r u C Y - c - - - r .-,-.-Ciw , - . - V N V

u 01 2 E m o m b m m m m m m m m l n m m m m mmtoyr~. m m m m h C z z z t z z z . 2 z 1 . . o m .2 1 0 . . 1 2 2 . * * - 0 2 - 2 * 2 . . Z .- a - ..- v v v v v V V V v v v v v V v w I vl C m 0 4 U I I

~ O O O C o o o o c o o o o o o o o o o O O O C Y O O O O O G ~ O ~ O U O P O P O ~ O O O O E o o o o c O O D U P o o o c c 0 0 0 0 ~ c e c o n o o o c o C C D O C o o o o o C O C O D n o m + h ~ o h k w m ~ m ~ - a m 0 0 m w . o D Q O ~ O m c r c w m o a o c m u b u r - c s 3 - h . . . . . . . . . . . . . . . . . . . . . . . . . . . . a , % . \ .

C O C G G o o o c c o o o c o C ~ G O U o o n a c c o u ~ c a o c ~ c i o o o ~ o o o o o n Y ~ r n ~ m r n m m m m m r n ~ n m ~ h m m c o m m m n a c h c o m h m m m w h m r n m m w m m m r u . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U a r w - r- - - - I

-- A A h A 0

L -2 4

. C D C O = I = ~ O C J C o = c o n a ~ o c i u c3oocc c , ~ a c r ~ a ~ z o c i c n o o o o o c o o w nlruohw m v r h k m r c n o o r - m r u m ~ 7 o v > c m m o c c c a m m o h m P - u , m ~ ~ m ~ ~ h m n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u- am - - r ru- - - i W - r - k a - - W N P J P d N * r r - N C c I rO u - -

c w c o c O G O O O O C ~ O O C O C ~ O O C O C I O C c c o c c o s o c o c n c o n c o c c c w W F U - ~ P w - h h t b h d C m O h O O O . . . . . . . . . . . . . . . . . . . . u 0 vl r ,- - - -n,- - - r u m + N - N ~ W - c c .- - - I

I o m c o r , ~ O C I U O cqnc.q oc,co c o c c o o o o o o o o n c a c o c c c n c o o m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y . . . . . Y n . - n n w m n m m ~ q m m k m n m m f i b ~ m m . ~ - - i m r ~ m b h ~ +r~ -+ f i ~ - v \ m m m m m h h u ~ n 'a 1 L LL

Page 123: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E 0Ln000 0 c Y 0 0 0 00ac30 00000 0 0 0 0 0 00000 O O O O O P m r m h m N M m m O O m h b t - 7 m o n w r l O m n N m NhrNf - l h m m h m n - - .- - -

L O O O C = u c o c o 03000 o o o c o o o o o o o a o o o ooooo a m ~ m k m m m k h m k o o m m o h m m m h c m k 0 m o m k k O b m o m 0 F - P 7 F C -,- - C F C C

E 0 2 2 0 0 2 0 C C O 0 0 0 0 2 00300 C 3 O Z Z o O C I o O O o x 0 0 0 a N W N f U N n J N f u N N N N n J n J N N NN N N N n , N N N NnJN n v v V v v v v v v - v v v v V v v v v v v V V V 1 u,

D O C D O 0 0 0 o t N N N N N N N N N

v v v v V v

E O O O O C O O C O O O O O O O 0 0 0 0 0 O O C O O O O O O O 0 0 0 G 0 Q m m m h m N O O L W L O W O F ~ h t h m a o m m r - m r - h w v t r - m c o o n fl- - - C r F - - - - I vr m J

E O W O C O C O C U C C O Q O O 00000 O C O O O C O O 0 0 O D O Q O w m h ~ m m h ~ m O O O O M 0 r + 0 h m h h 0 0 ~ m h m k n O ~ o m m

!2 F r - r ~ c - N r - - - I Y1 3 U

E .- - C 3 0 Q 0 0 00000 O C O C C 0 0 0 C O 00000 O D O f 3 0 O O O C O V E - 0 m m m 0 O O m C w l L C C C C m m 0 0 m m m o 0 m m - 0 0 0 m 0 0 c ~ C

P - - r - - W . v - - r W O N N V - * C I N . T ~ - h ' N t r r t U N N - - m . b - - "Y n

I E mOmu7m w l L 9 2 C O O D 0 0 0 0 0 0 3 0 0 3 0 0 0 O O O O C 0030"- O r - r - r r - n J W l n f w m n r u ~ m h ~ m ~ N ~ L - N ~ m n ~ c n n N m n e

N C I VL

w 0 d U B m C

E m c c o m ~ C C O C O O C O C O O D ~ C C C ~ C ~ m o C m m D O C G O 0 . . . . I . . . . . I . . . . . . . . . a * . . . I . . . . . I . . . 0 . - P V ~ L W - P R ' F ~ N W r ~ h ( . y n ~ ~ r y ~ ~ y ~ ~ W T U - - , - N W N N N N I YI U m

Page 124: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O O Z O Q b O D t Z Z Z Z Z n c a o c c o o N N N n, P J N N m ,

v v v V V V

E O Q C D C O O O O C a w o c m ~ c o o a m P r - N r - N - - - r I ul L V)

C?oooo O C C O C C O O ~ C m o c a a - - m r c l - - I U M N v v

O O C W O O O C C O O O O B t O O C O C 3 t C ; u C O O r n C C N N W I " - , N nmmk-.m n n r - m

E P m o m m c w , o t n m m ~ C P C L V m c m c n w 7 m c c m c o o n n o w q m m c m m m c o ~ c m o o Q r c r - r , - F V - V ~ - r ~ n t ~ n * - K , - M ~ , - - v , N - N N ~ W N P U C - Y ~ F - F N K ! N " J c N Y

l ur

Page 125: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

3 E V I S L n m '5 Vl # # rn m m U? C m .2 z Z ~ z Z ~ z t . z z z z z 2 2 2 . r . Z = Z z Z I a t 2 Z Z Z Z 2 Z Z * * * .- n v - v v - v V V V v v v CI 1 1 1 1

O C C O C 0 0 0 c c m o c m r . m ~ h o m . . . . . . . . . .

Page 126: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E C Q O O O o o o o o o o a m o o o o o o a o o s o o o o o o o o o o o o c o o o o o m a c c r n m m m ~ N N N ~ ~ n m m - ~ N M ~ N ~ m n n r u ~ n ~ n m n m n n m m m ~ ~ n m m m n - m -

E 0 0 0 0 0 Z Z O Z Z O Q O Z Z Z Z Z Z Z 0 2 2 2 2 0 2 2 2 0 Z O Z O P O C , O U O 0 2 2 2 2 a N N P U N N N N N N N N W N CU N W N N I Y N c v v v V v V v V v v v v v I Y)

n 2

E C O O 0 0 CYCOOO D O O O O O O O O O O O O O O 0 0 0 0 0 C C D O O 5 0 0 0 D O C O C O ' d a r - r c c r - w m n m ~ l m c m m r u n N V ~ V I N I ~ n h m r n o r - m m m o y c h m m m p r . h ~ - u i m U ? ~ Y I F L ~ ~ P r m - r - C 8-u

I n < * J

E 0 0 0 0 0 o o o o c 0 0 0 0 0 O O ~ O O c c o o c c c o o o o o o o o c o c o o o c o o o n a n m h - r - ~ W N F U Y n r n r u m h n w m r ~ m m ~ n m w ~ n n m - ~ ~ m m ~ - r - n w - n m r l ~ r u r u L

- o c o o o O C I C C Y O O C I G O W Q O O O F O O Z Y C I O D D O O O t o o o n n r , c o o o a o o o - m h O O m CiCC'c3m O C O O C mU'tOV., v 1 0 0 m m C D O O u i = l W O m D m C W , C O O c l C O O - r - - r N N W - W . v M h r - r r r - ~ m v r - N L N - r - - r r r - , w - r b m V L A w N '

E W O m m O C V O U ' t C w l r C V C m O C m C O m C O O Q C C D C O C C C O O C C O U 0 D m 0 0 a . . . . . . . e m . . . . . . . . . . . . . . , . . . . . . . . . . I . . . . . . . . . a P r k , r - e N - N r N r - k - N r i W N ~ m N - N N O . h h r w N M ~ 'V tUfuNm N h m V l k f u f i ' -NP l 1 n

Page 127: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

O O C O O 0 0 ~ 0 0 ca E o n c o o o o o o c o o m L " o o m 0 o r n u - o m m o

P R r - r e- - - 1 A .r C

. O O O O C C C O O O 00 C I I IC ICCOP h O L n O l n 5 - U - . . . . . . . . . . . . P a - m m N r c r N - N I m - -

C 4 N f L C E Q u - * N d r e - .,- . , < G G V , w , r v . v 4 u u n w m n n n n n r n n n m r n J 9 * 2 C Q .39CC* Q Q

Page 128: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

, ,

3 - - f , t.. L." . b J ' , , *, U _ I . ' , ,!

E c o o z c oozza z o N r U r Y N NN N N

P v v v v v I YL

z '0 01 2 C

d

V E 0 0 0 0 0 DC3oOO 00 p P * r n M M L n O O C k 0-

-@ a F Y C W + C I UI 0 3

Page 129: M. David - Alaska DGGSdggs.alaska.gov/webpubs/usgs/of/text/of82-0325.pdf · E a mmmv-bl mnnmm amh30 - mhhmm mh0Cb-I nm3mm mhmmh 0ht-L-P. mmmhn ... a vr v v v v v v I a 5030U 53-20

E C P C D O O O C O O 30 P h M h l * h r - h h m h m w , n VI I *

E a C r : C , C C C 3 C U P C m m O W N L A - M N h - N W - - I ' "