1,000

900

800

700

2,400

2,800

2,600

3,000

1,000

900

800

700

3,600

3,400

3,200

Matuyama 1.21 Ma

Matuyama 1.256 Ma

Post-Olduvai

South Late Matuyama

Matuyama

Post-Jaramillo (Matuyama)

?

Matuyama 1.37 Ma

Pre-

Old

uvai

Early Basal Brunhes

Uncorrelated

Uncorrelated

Uncorrelated

Early Basal Brunhes ?

?

Uncorrelated

Middle Basal Brunhes

?

?

?

?

?

?

?

?

?

???

?

?

?

?

?

Olduvai Lakebeds

*Note: Corehole NPR Test/W-02 was drilled to 1,524 meters (5,000 feet) below land surface (BLS), but only sampled to 1,143 meters (3,750 feet) BLS

Unrecovered sedimentand basalt

Land surface, approximately located

66°

-61°

-61°

-59°

-59°

-72°

-73°

-70°

-70°

-73°

-72°

-71°

-61°

68°

-70°

-71°

-71°

-69°

-66° 60°

-70°

-70°-69°-69°

-69°

-68°

-68°

-68°

-63°

-69°

-57°

-66°

-67°-42°

54°

-72°

-67°

-68°-69°

52°-72°

-67°

-66°

-63°

-71°

-49°

-61°

-66°

-57°

11°

-48°

-67°

-23°

5°

-59°

-69°

-61°

-55°

-65°

-63°

-70°

-57°

59°

57°

-51°

-51°

-41°

-42°

-56°

-64°

-53°

-58°

-66°

-61°

-64°

-64°

-55°

-56°

-46°

-57°

70°

55°

-68°

Upper 152 meters not cored

?

?

?

? ?

?

?

Matuyama Middle Basal Brunhes

Early Basal Brunhes

CraterButte

?

??ATRCUnknownVent

?

Uncorrelated

Uncorrelated

Uncorrelated

N INTEC

Buried Vent

?

0

0

5

5

10 MILES

VERTICAL SCALE X 30DATUM IS NATIONAL GEODETIC VERTICAL DATUM OF 1929

VERTICAL SCALE X 30DATUM IS NATIONAL GEODETIC VERTICAL DATUM OF 1929

VERTICAL SCALE X 30DATUM IS NATIONAL GEODETIC VERTICAL DATUM OF 1929

10 KILOMETERS

0

0

5

5

10 MILES

10 KILOMETERS

0

0

5

5

10 MILES

10 KILOMETERS

-69°

-69°

-68°

-68°

-69°

-68°

-72°

54°

55°

-70°

59°

64°54°

65°58°

62°

57°

61°

69°

64°

67°

54°

67°

67°

67°

60°

45°

56°

53°

64°

USG

S 13

4

Mid

dle

1823

ICPP

214

USG

S 12

8

STF-

AQ

-01

USG

S 13

5

C1A

AR

A-C

OR-

005

USG

S 13

0

1,100

METERS

1,500

1,400

1,300

1,200

1,600

AMETERS

1,100

1,500

1,400

1,300

1,200

1,600

4,000

3,800

4,600

4,400

4,200

4,800

5,200

5,000

FEET

A'SOUTHWEST

1,100

METERS

1,500

1,400

1,300

1,200

1,600

BNORTHWEST

NORTHEAST

METERS

1,100

0

0

5

5

10 MILES

10 KILOMETERS

1,500

1,400

1,300

1,200

1,600

4,000

3,800

4,600

4,400

4,200

4,800

5,200

5,000

FEET

B'SOUTHEAST

METERS

1,100

1,500

1,400

1,300

1,200

1,600

4,000

3,800

4,600

4,400

4,200

4,800

5,200

5,000

FEET

C'NORTHEAST

?

51°

67°

60°

60°

55°

68°

58°

-62°

-59°

-72°

-73°

66°

54°54°

64°

65°

57°

57°

55°55°

54°

53°

55°

54°

54°

57°51°

53°

62°

57°

52°

62°

60° 62°

62°

55°55°

59°

59°

60°

66°

-61°

-59°

-59°

-72°

-73°

58°

-70°

-70°

-73°

-71°

66°

60°

-60°

65°66°

68°54° -72°

-69°

Jaramillo (Matuyama)

Matuyama

South Late Matuyama

Quaking Aspen Butte

?

?

?

Matuyama

Lavatoo Butte

Basal Brunhes

Middle

West of ATRC

Low K2O

USG

S 13

5

USG

S 13

2

USG

S 12

9

USG

S 13

1

USG

S 12

7

USG

S 13

0

USG

S 12

8

USG

S 12

3

USG

S 12

1

USG

S 13

3

NRF

7PIC

PP 0

23

Mid

dle

2051

Mid

dle

1823

Mid

dle

2050

A

NPR

Tes

t/W

-02

AN

L-O

BS-

A-0

01

“E”

“G”

ATRCUnknownVent

N INTECBuriedVent

Uncorrelated

Olduvai

Brunhes Normal Polarity Chron-Matuyama Reversed Polarity Chron boundary 0.78 million years [Ma] (onset of the Brunhes Chron) to present, queried where uncertain

EXPLANATION

Jaramillo Normal Polarity Subchron boundaries (onset at 1.072 Ma, termination at 0.988 Ma), queried where uncertainApproximate location of the water table

Inferred stratigraphic boundariesOlduvai Normal Polarity Subchron boundaries (onset at 1.95 Ma, termination at 1.77 Ma)

Sediment

*70º Flow group thermally overprinted by flows above

?

?

?

U.S. DEPARTMENT OF THE INTERIORU.S. GEOLOGICAL SURVEY

Prepared in cooperation with theU.S. DEPARTMENT OF ENERGY

science for a changing world

SCIENTIFIC INVESTIGATIONS REPORT 2011–5049Map and cross-sections of subsurface stratigraphy interpreted from paleomagnetic inclination data from coreholes—PLATE 1

ByDuane E. Champion, Mary K.V. Hodges, Linda C. Davis, and Marvin A. Lanphere

2011

Champion, D.E., Hodges, M.K.V., Davis, L.C., and Lanphere, M.A., 2011, Paleomagnetic Correlation of Surface and Subsurface Basaltic Lava Flowsand Flow Groups in the Southern Part of the Idaho National Laboratory, Idaho, with Paleomagnetic Data Tables for Drill Cores

1,100

METERS

1,500

1,400

1,300

1,200

1,600

CSOUTHWEST

Direction of re

gional

groundwater flow

SpreadingAreas

EastButte

MiddleButte

IDAHO NATIONAL LABORATORY BOUNDARY

C

C'

B'

B

LOST RIVER RANGE

A

A'

AtomicCity

C1A

NRF 7P

135

134 133

132

129 127

131

130

128

121

NPR TEST/W-02

Middle 2051

Middle 1823Middle2050A

ANL-OBS-A-001

ARA-COR-005STF-AQ-01

ICPP 023

ICPP 214

123

Map and Cross-sections of Subsurface Stratigraphy Interpreted from Paleomagnetic Inclination Data from Coreholes in the Southern Part of the Idaho National Laboratory, Idaho

DOE/ID-22214

Big

Lost

Rive

r

Big Lost River

Base from U.S. Geological Survey digital data, 1:24,000 and 1:100,000Universal Transverse Mercator projection, Zone 12Datum is North American Datum of 1927

113°10'

43°40'

43°35'

43°30'

43°25'

112°50' 112°40'113°

Figurelocation

IDAHO

IDAHO NATIONALLABORATORY

Boise

Twin FallsPocatello

IdahoFalls

EASTERN SNAKE RIVER PLAIN

Radioactive Waste Management Complex

Advanced TestReactor Complex

Idaho Nuclear Technology and Engineering Center

Central Facilities Area

Naval Reactors Facility

Materials andFuels Complex

Jaramillo (Matuyama)

Matuyama 1.44 Ma

East Matuyama Middle

East Matuyama Lower

East Matuyama Upper

Post- Jaramillo (Matuyama)

55°

52°

52°

58°

54°

54°

53°

45°

-63°

44°

51°55°55°

57°

49°

53° 52°

53°

49°53°

51°

58°

-66°-38°

-54°

-41°

-54°

-54°

-64°

-61°

Mid Butte

Mid Butte

AEC Butte

Vent 5206

High K2O

Vent 5252

West of ATRC

Big Lost

CFABuried Vent

Jaramillo(Matuyama)

Post-Jaramillo(Matuyama)

??

Uncorrelated

-62°

-64°

67°

55°

55°

63°

55°55°53°

54°

77°

57°

59°

64°

65°

58°

71°

77°*59°

52°

64°

65°

59°

53°

52°

65°

51°

64°

60°

67°

69°

69°

53°

55°55°

*70°63°

70°70°

49°

60°

65°

52°

55°

65°

59°

59°

-32°

60°

-30°

-37°

-40° -35°

60°

69°

55°

58°

54°

60°

-35°

70°

57°

57°

62°

72°

72°

71°

-40°

-66°

-42°

-38°

62°

64°

66°

61°

74°

62°

58°

62°

62° 60°

57°

61°59°

63°63°

64°62°

75°75°

76°

67°

73°

57°

63°

-46°

67°

65°

50°

52°

54°

-47°

64°

60°

58°57°

-34°

-31°-36°-39°

66°

-35°

-35°

-34°

-32°-30°

67° 67°

67°66°

68°

68°

62° 66°

58°

51°

58°

65°

68°

66°

69°

69°

61°

55°55°53°

58° 58°56°

55°55°

55° 58°

69°

67°

67°69°

68°

-44°

-47°

67°

66°

61°

53°

64°

58°

63°64°

60°

52°

53°

53° 51°

51°54°57° 56°

65° 65°

66°

60°

73°

50°49°

70° 70°70°

73° 72°

*70°

-64°

52°

West of ATRC

AEC Butte

Vent 5252

High K2O

Post-Jaramillo (Matuyama)

Vent 5206

Big Lost

Early Basal Brunhes

Late BasalBrunhes

North Late Matuyama

Mid ButteEast of Middle Butte

Tin Cup Butte

Unknown Vent

State Butte

CFA BuriedVent

South CFABuried Vent(s)

Late BasalBrunhes

South CFABuried Vent(s)

Eastof Middle

ButteUnknownVent

(Matuyama)

65°

? ?