RPT ON COMBINED HELICOPTER-BORNE MAG/EM/VLF SUR - …

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42C13SWM46 8.6041 WABIKOBA LAKE 010

REPORT ON

COMBINED HELICOPTER-BORNE

MAGNETIC, ELECTROMAGNETIC,

AND VLF-EM SURVEY

BLACK RIVER CLAIMS

ONTARIO

V a 2 f9Q3

IAND5 SECTION

for

TUNDRA GOLD MINES LTD.

by

AERODAT LIMITED

October, 1983

ll Â TABLE OF i 42ci3swee46 a.ewi WABIKOBA LAKE 010C

Page No.

l 1. INTRODUCTION 1-1

g 2. SURVEY AREA AND LOCATION 2-1

™ 3. AIRCRAFT EQUIPMENT AND PERSONNEL 3-1

l 3.1 Aircraft 3-1

3.2 Equipment 3-1

l 3.2.1 Electromagnetic System 3-1

— 3.2.2 VLF-EM System 3-1

" 3.2.3 Magnetometer 3-2

l 3.2.4 Magnetic Base Station 3-2

3.2.5 Radar Altimeter 3-2

l 3.2.6 Tracking Camera 3-2

— 3.2.7 Analog Recorder 3-3

" 3.2.8 Digital Recorder 3-4

l 3.2.9 Radar Positioning System 3-5

4. DATA PRESENTATION 4-1

l 4.1 Base Map and Flight Path Recovery 4-1

— 4.2 Electromagnetic Profile Maps 4-2

" 4.3 Magnetic Contour Maps 4-3

l 4.4 VLF-EM Contour Maps 4-3

l APPENDIX I - General Interpretive Considerations

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lm A LIST OF MAPS

(Scale: 1:15,000)

lMaps

l— l Airborne Electromagnetic Survey Profiles l 4500 Hz (coaxial)

l 2 Airborne Electromagnetic Survey Profiles4100 Hz (coplanar)

3 Total Field VLF-EM

™ 4 Total Field Magnetic Map

l 5 Interpretation Map

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1-1

l. INTRODUCTION

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During the period of March 2 to June 14, 1983

l Aerodat carried out an airborne geophysical survey

of approximately 1,570 square kilometers in the

l Hemlo area of Ontario. Equipment operated include

H a 3 frequency HEM and VLF electromagnetic systems,

a magnetometer and a radar positioning device. At

l a nominal line spacing of 100 meters a total of

15,770 line kilometers of data was acquired.

This report on behalf of Tundra Gold Mines Ltd.

l refers to a part of the overall survey, consisting

of 23.3 line kilometers, flown during the period of

l April 21 to April 22, 1983.

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2-1

2. SURVEY AREA AND LOCATIONS

The index map below outlines the overall survey and

the location of the property to which this report

refers. The property outline and related mining

claim numbers are indicated on the maps accompanying

the report.

SUPERIOR

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59' SB' 57'

ll *l 3. AIRCRAFT EQUIPMENT

l 3.1 Aircraft

l The helicopter used for the survey was an Aerospatial

. Astar 350D owned and operated by North Star Helicopters.

* Installation of the geophysical and ancillary equipment

l was carried out by Aerodat. The survey aircraft was

flown at a nominal altitude of 60 meters.

3.2 Equipment

™ 3.2.1 Electromagnetic System

l The electromagnetic system was an Aerodat/

m Geonics 3 frequency system. Two vertical

coaxial coil pairs were operated at 950 and

l 4500 Hz and a horizontal coplanar coil pair

at 4100 Hz. The transmitter-receiver separ-

l ation was 7 meters. In-phase and quadrature

•j signals were measured simultaneously for the

3 frequencies with a time-constant of 0.1

l seconds. The electromagnetic bird was towed

30 meters below the helicopter.

l3.2.2 VLF-EM System

The VLF-EM System was a Herz 1A. This instru-

I ment measures the total field and vertical

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quadrature component of the selected frequency.

The sensor was towed in a bird 15 meters belowM

the helicopter. The station used was NAA,

l Cutler Maine, 17.8 KHz or NLK, Jim Creek

Washington, 24.8 KHz.

l3.2.3 Magnetometer

The magnetometer was a Geometrics G- 80 3 proton

m precession type. The sensitivity of the

instrument was l gamma at a 0.5 second sample

l rate. The sensor was towed in a bird 15 meters

g below the helicopter.

3.2.4 Magnetic Base Station

An IFG proton precession type magnetometer was

l operated at the base of operations to record

. diurnal variations of the earths magnetic

™ field. The clock of the base station was

l synchronized with that of the airborne system.


3-3

3.2.5 Radar Altimeter

A Hoffman HRA-100 radar altimeter was used to

record terrain clearance. The output from the

instrument is a linear function of altitude

for maximum accuracy.

3.2.6 Tracking Camera

A Geocam tracking camera was used to record

flight path on 35 mm film. The camera was

operated in strip mode and the fiducial numbers

for cross reference to the analog and digital

data were imprinted on the margin of the film.

3.2.7 Analog Recorder

A RMS dot-matrix recorder was used to display

the data during the survey. A sample record

with channel identification and scales is

presented on the following page.


3-4

3.2.8 Digital Recorder

A Perle DAC/NAV data system recorded the survey

data on cassette magnetic tape. Information

recorded was as follows:

Equipment

EM

VLF-EM

magnetometer

altimeter

fiducial (time)

fiducial (manual)

Interval

0.1 second

O.5 second

0.5 second

1.0 second

1.0 second

0.2 second

lL-*

ANALOG-CHART

CAMERA ^FIDUCIAL

11.. ..:Q...feet

VLF QUAD.(ORTHO) VLF TOTAL-""""^* 25*

VLF:QUAD.

VLF TOTAL

COPLANAR QUAB..

5.9 ; .gammas

COPLANAR JNrPHASE

COAXIAL QUAD(H.I.GH...FREQ

COAXIAL IN-PHASE

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(HIGH FREQv)

COAXIAL

20 ppm.

{LOW FREQ.) I 20 ppm.

COAXIAL,, IN-PHASE(LOW FREQ.) 20 ppm.

nrms

^MANUAL FIDUCIAL

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l 3.2.9 Radar Positioning System

j A Motorola Mini-Ranger (MRS III) radar

navigation system was utilized for both

l navigation and track recovery. Transponders

located at fixed known locations were inter-

| rogated several times per second and the ranges

H from these points to the helicopter measured

to several meter accuracy. A navigational

l computer triangulates the position of the

helicopter and provides the pilot with naviga-

| tion information. The range/range data was

B recorded on magnetic tape for subsequent flight

path determination.

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4-1

4. DATA PRESENTATION

4.1 Base Map and Flight Path Recovery

The base map, at a scale of 1/15,000 is an

enlargement of published 1/50,000 topographic

maps.

l The flight path was derived from the Mini Ranger

m radar positioning system. The distance from the

helicopter to two established reference locations

l was measured several times per second and the

position of the helicopter mathematically calcu-

| lated by triangulation. It is estimated that the

m flight path is generally accurate to about 30

meters, with respect to the topographic detail of

l the base map.

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is zero when no conductive or permeable source is

present. This filtered and levelled data was thenjpresented in profile map form.

The in-phase and quadrature responses of the coaxial

4500 Hz and the coplanar 4100 Hz configuration are

presented with flight path on the topographic base

l map.

4.3 Magnetic Contour Maps

The aeromagnetic data was corrected for diurnal

variations by subtraction of the digitally recorded

l base station magnetic profile. No correction for

regional variation is applied.

The corrected profile data was interpolated onto a

g regular grid at a 2.5 mm interval using a cubic

— spline technique. The grid provided the basis for

™ threading the presented contours at a 10 gamma

l interval.

—j 4.5 VLF-EM Contour Maps

— The VLF-EM signal, was compiled in map form. The

" mean response level of the total field signal was

l removed and the data was gridded and contoured at

an interval of 2%.

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ll ^ APPENDIX I

l GENERAL INTERPRETIVE CONSIDERATIONS

Electromagnetic

B The Aerodat 3 frequency system utilizes 2 different

B transmitter-receiver coil geometries. The traditional

coaxial coil configuration is operated at 2 widely

l separated frequencies and the horizontal coplanar coil

pair is operated at a frequency approximately aligned

B with the higher frequency.

l The electromagnetic response measured by the helicopter

— system is a function of the "electrical" and "geometrical"

properties of the conductor. The "electrical" property

B of a conductor is determined largely by its conductivity

and its size and shape; the "geometrical" property of the

l response is largely a function of the conductors shape and

orientation with respect to the measuring transmitter and

receiver.

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Electrical Considerations

B For a given conductive body the measure of its conductivity

M or conductance is closely related to the measured phase

™ shift between the received and transmitted electromagnetic

B field. A small phase shift indicates a relatively high

conductance, a large phase shift lower conductance. A

l small phase shift results in a large in-phase to quadrature

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- 2 - APPENDIX I

ratio and a large phase shift a low ratio. This relation

ship is shown quantitatively for a vertical half-plane

model on the phasor diagram. Other physical models will

show the same trend but different quantitative relation

ships.

The conductance and depth values as determined are correct

only as far as the model approximates the real geological

situation. The actual geological source may be of limited

length, have significant dip, its conductivity and thickness

may vary with depth and/or strike and adjacent bodies and

overburden may have modified the response. In general the

conductance estimate is less affected by these limitations :

than the depth estimate but both should be considered a

relative rather than absolute guide to the anomalies

properties.

I00(

100

SK

AEROOAT HEM SYSTEM RESPONSE VERTICAL HALF-PLANE J.

100 SI-PHASE (M")

000

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l Conductance in mhos is the reciprocal of resistance in

m ohms and in the case of narrow slab-like bodies is the

product of electrical conductivity and thickness.

" Most overburden will have an indicated conductance of less

l than 2 mhos; however, more conductive clays may have an

apparent conductance of say 2 to 4 mhos. Also in the low

J conductance range will be electrolytic conductors in

— faults and shears.

The higher ranges of conductance, greater than 4 mhos,

l indicate that a significant fraction of the electrical

m conduction is electronic rather than electrolytic in

nature. Materials that conduct electronically are limited

l to certain metallic sulphides and to graphite. High

conductance anomalies, roughly 10 mhos or greater, are

l generally limited to sulphide or graphite bearing rocks.

jj Sulphide minerals with the exception of sphalerite, cinnabar

— and stibnite are good conductors; however, they may occur

™ in a disseminated manner that inhibits electrical conduction

—j through the rock mass. In this case the apparent conductance

can seriously underrate the quality of the conductor in

l geological terms. In a similar sense the relatively non-

— conducting sulphide minerals noted above may be present in

" significant concentration in association with minor conductive

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sulphides, and the electromagnetic response only relate

to the minor associated mineralization. Indicated conductance

is also of little direct significance for the identification

l of gold mineralization. Although gold is highly conductive

it would not be expected to exist in sufficient quantity

l to create a recognizable anomaly, but minor accessory sulphide

m mineralization could provide a useful indirect indication.

In summary, the estimated conductance of a conductor can

* provide a relatively positive identification of significant

U sulphide or graphite mineralization; however, a moderate

to low conductance value does not rule out the possibility

l of significant economic mineralization.

Geometrical Considerations

M Geometrical information about the geologic conductor can

often be interpreted from the profile shape of the anomaly.

J The change in shape is primarily related to the change in

inductive coupling among the transmitter, the target, and

™ the receiver.

l In the case of a thin, steeply dipping, sheet-like conductor,

m the coaxial coil pair will yield a near symmetric peak over

the conductor. On the other hand the coplanar coil pair will

l pass through a null couple relationship and yield a minimum

over the conductor, flanked by positive side lobes. As the

l dip of the conductor decreases from vertical, the coaxial

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l anomaly shape changes only slightly, but in the case of

the coplanar coil pair the side lobe on the down dip side

l strengthens relative to that on the up dip side.

l As the thickness of the conductor increases, induced

— current flow across the thickness of the conductor becomes

™ relatively significant and complete null coupling with the

l coplanar coils is no longer possible. As a result, the

apparent minimum of the coplanar response over the conductor

g diminishes with increasing thickness, and in the limiting

— case of a fully 3 dimensional body or a horizontal layer

™ or half-space, the minimum disappears completely.

l A horizontal conducting layer such as overburden will produce

m a response in the coaxial and coplanar coils that is a

function of altitude (and conductivity if not uniform) . The

l profile shape will be similar in both coil configurations

with an amplitude ratio (coplanar/coaxial) of about 4/1.*

In the case of a spherical conductor, the induced currents

f are confined to the volume of the sphere, but not relatively

— restricted to any arbitrary plane as in the case of a sheet-

™ like form. The response of the coplanar coil pair directly

—j over the sphere may be up to 8* times greater than that of

the coaxial coil pair.

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l In summary a steeply dipping, sheet-like conductor will

display a decrease in the coplanar response coincident

l with the peak of the coaxial response. The relative

K strength of this coplanar null is related inversely to

™ the thickness of the conductor; a pronounced null indicates

l a relatively thin conductor. The dip of such a conductor

can be inferred from the relative amplitudes of the side-lobes,

Massive conductors that could be approximated by a conducting

l sphere will display a simple single peak profile form on both

coaxial and coplanar coils, with a ratio between the coplanar

B to coaxial response amplitudes as high as 8.*

l Occasionally if the edge of an overburden zone is sharply

M defined with some significant depth extent, an edge effect

™ will occur in the coaxial coils. In the case of a horizontal

l conductive ring or ribbon, the coaxial response will consist

of two peaks, one over each edge; whereas the coplanar coil

l will yield a single peak.

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l * It should be noted at this point that Aerodat's definition

of the measured ppm unit is related to the primary field

l sensed in the receiving coil without normalization to the

m maximum coupled (coaxial configuration). If such normal

ization were applied to the Aerodat units, the amplitude

l of the coplanar coil pair would be halved.

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l ll Magnetics

- 8 - APPENDIX

l The Total Field Magnetic Map shows contours of the

total magnetic field, uncorrected for regional varia-

| tion. Whether an EM anomaly with a magnetic correla-

M tion is more likely to be caused by a sulphide deposit

than one without depends on the type of mineralization.

l An apparent coincidence between an EM and a magnetic

anomaly may be caused by a conductor which is also

l magnetic, or by a conductor which lies in close proximity

H to a magnetic body. The majority of conductors which are

also magnetic are sulphides containing pyrrhotite and/or

l magnetite. Conductive and magnetic bodies in close

association can be, and often are, graphite and magnetite.

l It is often very difficult to distinguish between these

H cases. If the conductor is also magnetic, it will usually

™ produce an EM anomaly whose general pattern resembles

l that of the magnetics. Depending on the magnetic perme

ability of the conducting body, the amplitude of the

l inphase EM anomaly will be weakened, and if the conduc-

— tivity is also weak, the inphase EM anomaly may even be

™ reversed in sign.

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l VLF Electromagnetics

l The VLF-EM method employs the radiation from powerful

military radio transmitters as the primary signals.

™ The magnetic field associated with the primary field

M is elliptically polarized in the vicinity of electrical

conductors. The Herz Totem uses three orthogonal coils

l to measure the total field and vertical quadrature

component of the polarization ellipse.

M The relatively high frequency of VLF 15-25 kHz provides

high response factors for bodies of low conductance.

J Relatively "disconnected" sulphide ores have been found

to produce measurable VLF signals. For the same reason,

™ poor conductors such as sheared contacts, breccia zones,

B narrow faults, alteration zones and porous flow tops normally

produce VLF anomalies. The method can therefore be used

J effectively for geological mapping. The only relative dis-

advantage of the method lies in its sensitivity to conductive

" overburden. In conductive ground the depth of exploration

l is severely limited.

m The effect of strike direction is important in the sense

of the relation of the conductor axis relative to the

l energizing electromagnetic field. A conductor aligned

along a radius drawn from a transmitting station will be

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in a maximum coupled orientation and thereby produce a

stronger response than a similar conductor at a different

strike angle. Theoretically it would be possible for a

l conductor, oriented tangentially to the transmitter to

produce no signal. The most obvious effect of the strike

l angle consideration is that conductors favourably oriented

m with respect to the transmitter location and also near

perpendicular to the flight direction are most clearly

8 rendered and usually dominate the map presentation.

l The total field response is an indicator of the existence

and position of a conductivity anomaly. The response will

g be a maximum over the conductor, without any special filtering,

H and strongly favour the upper edge of the conductor even in

™ the case of a relatively shallow dip.

l The vertical quadrature component over steeply dipping sheet

m like conductor will be a cross-over type response with the

cross-over closely associated with the upper edge of the

conductor.

l The response is a cross-over type due to the fact that it

is the vertical rather than total field quadrature comporient

l that is measured. The response shape is due largely to

— geometrical rather than conductivity considerations and

' the distance between the maximum and minimum on either side

l of the cross-over is related to target depth. For a given

target geometry, the larger this distance the greater the

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depth.

l The amplitude of the quadrature response, as opposed

to shape, is a function of target conductance and depth

B as well as the conductivity of the overburden and host

U rock. As the primary field travels down to the conductor

through conductive material, it is both attenuated and

l phase shifted in a negative sense. The secondary field

produced by this altered field at the target also has an

B associated phase shift. This phase shift is positive and

•j is larger for relatively poor conductors. This secondary

field is attenuated and phase shifted in a negative sense

l during return travel to the surface. The net effect of

these 3 phase shifts determine the phase of the secondary

™ field sensed at the receiver.

l A relatively poor conductor in resistive ground will yield

m a net positive phase shift. A relatively good conductor

in more conductive ground will yield a net negative phase

l shift. A combination is possible whereby the net phase shift

is zero and the response is purely in-phase with no quad-

| rature component.

l A net positive phase shift combined with the geometrical

cross-over shape will lead to a positive quadrature response

* on the side of approach and a negative on the side of

l departure. A net negative phase shift would produce the

reverse. A further sign reversal occurs with a 180 degree

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change in instrument orientation as occurs on reciprocallline headings. During digital processing of the quad-

I rature data for map presentation this is corrected for

by normalizing the sign to one of the flight line headings,

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lOntario'

Ministryof, Report of Work -ennrre.: {Geophysical, Geological,

ôUU'v/tJO

Geochemical and Expenditures)

The Mining 42ci3sweo46 2.6041 WABIKOBA LAKE 900Type of SurveylsT

AirborneINIS l H Y Of"'* VLF-EM

[Township or AreaWabikoba Lake

Claim Holder(s)

"IztmitedAddress

X/f , ^ [Prospector's Li

' J fi n* -M T1533

Survey Companyi exi-co

__AenooLat-.. Limited.,.,,.., ... AÎCN UiName and Address of Author (of Geo-Technical report)

Scott 17 Malabar Place

Date of Survey (from 61 to^

Dal 5 Ma ;

Don

5 5 83\ Mo, \ ^

M3B 1A4

Total Miles of line Cut

Credits Requested per Each Claim in Columns at rightSpecial Provisions

For first survey:

Enter 40 days. (This includes line cutting)

For each additional survey: using the same grid:

Enter 20 days (for each)

Man Days

Complete reverse side and enter total (s) here

Airborne Credits

Note: Special provisions credits do not apply to Airborne Surveys.

(Maximum 8Gft\[i

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

RECF/VlElectromagnetic

MaBnefforfifit/r |QDO

^diometric yLF

Days perClaim

Days per Claim

——————

-. —— . ——

Days per ?^m~M*^53.3frZ

Expenditures (excludes power

Mining Claims Traversed (List in numerical sequence)

Type of Work Performed

Performed on ClaimU)

Calculation of Expenditure Days Credits

Total ExpendituresTotal

Days Credits

InstructionsTotal Days Credits may be apportioned at the claim holder's choice. Enter number of days credits per claim selected In columns at right.

Recorded Hoi t*'ft Agent (Signature)

Certification Verifying Reportrof Work

Total number of mining claims covered by this report of work.

l hereby certify that l have a personal and intimate knowledge of the /ecu wt forth in the Report of Work annexed hereto, having performed the work or witnessed same during and/or after its completio/iand trie annexedjteport ts true.

Name and Postal Address of Pereon Certifying

Fenton Scott 17 Malabar Place Don Mills* Ontario M3B1.

1362 (81/9)

Ontario

Ministry of Natural Resources

GEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL TECHNICAL DATA STATEMENT

FUc.

TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type of Survey(s) A t* 60* ye

Township or Area lf#3i ko&A LA t: f f G.

Claim Holder(s).

Survey Company _

Author of Report. Sev-rr

Address of Author.

Covering Dates of Survey.

Total Miles of Line Cut

(linecutting to office) /i"

SPECIAL PROVISIONS CREDITS REQUESTED

ENTER 40 days (includes line cutting) for first survey.

ENTER 20 days for each additional survey using same grid.

^ , . ,GeophysicalDAYS

per claim

-Radiometric.

AIRBORNE CREDITS (Special proviiion credit, do not apply to airborne surveyi)

-Electromagnetic. "^ 5* o-JiS" *-J- 3 oMagnetometer.

DATE:.'/Z*

(enter day* per claim)

SIGNATURE?Âuthor of Report or Agent

Res. Geol. .Qualifications.

Previous Surveys File No. Type Date Claim Holder

MINING CLAIMS TRAVERSED List numerically

(prefix) (number)

62

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-77

TOTAL CLAIMS. JA.

837 (B/79)

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS — If more than one survey, specify data for each type of survey

Number of Stations ————————————————————————Number of Readings Station interval ____________________________Line spacing.—-—— Profile scale ——————————————————————————————————————————,

Contour interval.

Instrument-—

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Accuracy — Scale constant. Diurnal correction method.Base Station check-in interval (hours). Base Station location and value ___

ELECTROMAGNETICInstrument

Coil Configuration

fV.il separation

AccuracyMethod:Freqiicnry

CH Fixed transmitter d Shoot back d In line d Parallel line

(specify V.L.F. station)

Parameters measured.

Instrument.

Scale constant.Corrections made.

Base station value and location.

Elevation accuracy.

Instrument .————Method d Time Domain d Frequency Domain

Parameters - On time __________________________ Frequency —————-Off time__________________________ Range ———————

— Delay time ————————————————————————— Integration time.

Power .Electrode array — Electrode spacing . Type of electrode

SELF POTENTIAL

Instrument———————————————————————————————————————— Range.Survey Method ———————————————————————————————————————————

Corrections made.

RADIOMETRIC

Instrument——.—Values measured.Energy windows (levels) -.^^—————^^——————^———^^.^^——————^^^——.Height of instrument ———.^—.—.———.^^-———^——.——.Background Count. Size of detector——————^-—-—-———————-———-...—.^^——...——-..—.^..^—Overburden —————^—-——^^-—.——^———————————-.^^——..^—^—..—-—-

(type, depth - include outcrop map)

OTHERS (SEISMIC, DRILL WELL LOGGING ETC.)

Type of survey——————————————————————— Instrument ___________________________ Accuracy——————————————————————————Parameters measured.

Additional information (for understanding results).

AIRBORNE SURVEYS

Type ofInstmment(s) ^———' 3 W*. fi*"ifr**3 C, gc^——————-fr?y* a*

(specify for each type of survey) ^.^ Accuracy_______'bf**____________O'f 4*"-~#-*—————————(—f————

' (specify for each type of survey)^ . . 7 x

Aircraft used ——— Sensor altitude__Navigation and flight path recovery method. i w, f\ *taAit- s/Tr OA^/ /U C, ,

Aircraft altitude_____ -dG____________________Line SpacingMiles flown over total area____/^ * "7*1 C* fc *^? _______Over claims only

GEOCHEMICAL SURVEY - PROCEDURE RECORD

Numbers of claims from which samples taken.

Total Number of Samples. Type of Sample.

(Nature of Material)Average Sample Weight——————— Method of Collection————————

Soil Horizon Sampled. Horizon Development. Sample Depth————— Terrain_________

Drainage Development——————————— Estimated Range of Overburden Thickness.

Mesh size of fraction used for analysis.

ANALYTICAL METHODSValues expressed in: per cent O

p. p. m. CDp. p. b. D

Cu, Pb,

Others—

Zn, Ni, Co, Ag, Mo, As.-(circle)

Field Analysis (Êxtraction Method. Analytical Method- Reagents Used——

Field Laboratory Analysis No.(——————————

SAMPLE PREPARATION(Includes drying, screening, crushing, ashing)

Extraction Method. Analytical Method. Reagents Used^—

Commercial Laboratory (- Name of Laboratory—- Extraction Method—— Analytical Method —— Reagents Used———

.tests)

.tests)

-tests)

General. General.

Ministry ofNaturalResales

Ontario

GeotechnicalReportApproval

File

Mining Lands Comments

To: Geophysicsg

Comments

-V 4| | Wish to see again with corrections

Slgnatu

To: Geology - Expenditures

Comments

[~] Approved | | Wish to see again with correctionsDate Signature

To: Geochemistry

Comments

l ] Approved [ | Wish to see again with correctionsDate Signature

j [TO: Mining Lands Section, Room 6462, Whitney Block. {Tel: 5-1380)

1633(81/101

1983 12 02 2.6041

Mrs. Audrey HayesMining RecorderMinistry of Natural ResourcesP.O. Box 5000Thunder Bay, OntarioP7C 5G6

Dear Madam:

Vie have received reports and maps for an Airborne Geophysical (Electromagnetic and Magnetometer and V.L.F.) survey submitted on mining claims TB 644163 to 72 Inclusive, TB 644174 to 77 Inclusive and TB 644183-84 1n the Area of Wabikoba Lake.

This material will be examined and assessed and a statement of assessment work credits will be Issued.

We do not have a copy of the report of work which 1s normally filed with you prior to the submission of this technical data. Please forward a copy as soon as possible.

Yours very truly,

E.F. AndersonDirectorLand Management Branch

Whitney Block, Room 6643 Queen's Park Toronto, Ontario M7A 1W3 Phone:(416)965-1380

A. Barr:me

cc: F. RecosMe106 JohnsonVal d'Or, Quebec J9P 3H7

cc: Fenton Scott 17 Malabar Place Don Mills, Ontario MSB 1A4

cc: Yvon Robert 872 6th Rue Val d'Or, Quebec J9P 3W1

CO (71O

REFERENCES

UJ>L-

DQ O

OD

O I/O

SURVEYSMeridian Line by F.F. Miller P.L.S.

1686. Field Note Book No.2404

Line by M.E.Crouch O,L.S. 1909 is Expunged due to errors in Survey Field N ote Book No. 1972

AREAS WITHDRAWN FROM DISPOSITION

M.R.O. MiKIIU) rtlGHTSO'xLir

S.R.O. SURFACE RIGHTS ONI V

M.+ S. - MINING AND SURFACE RIGHTS

Description Order No Drfie Disposition F ile

SEC 36/PC' W 26-83 70/10/83 ' S.RO. 188541

FtAJ.'rWAY-'

C.P.K. Branch Line from Mile 33.6

Heron Bay Subdivision to a PomT North of Manitouwadge Lake. 100' R/Way. Plans 61110-

6*5. File 154466.SEE ALSO PLANS No 4565 8, 4565-1.

P M.O. Secondary Road No. 614 from D. H O, Plans No.r-3268-^,-3. and -4.

42C13SW*e46 2.6841 WABIKOBA LAKE 200

St 1

50'

49

48

47

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MOLSON LAKE G-603

REFERENCES

TOPOGRAPHY

. RIVERS. ETC.. FROM FOREST RESOURCES INVENTORY SHEET No 487654

SAND ft GRAVEL© M.fC. PIT 1441

© " "1435

© " "1364® GRAVEL FIUEM69979(S) QUARRY PERMIT

"DATE OF ISSUEFEBi-3

CD l

CO C/lo

Mlnfstry'of NstttTil Resourcesx TOROTO ^-^

LEGENDHIGHWAY AND BpUTE No. OTHER tfOAOS

TRAILS SURVEYED LINtS:

TOWNShlPS. BASE LINES, ETCLOTS. MiNINp CLAIMS. PARCELS, ETC

UNSUftVEYEO LINES:- LOT LINES- PARCEL BOUNDARY MINING CLAIMS ETC

- RAILWAY AND RIGHT OF WAY *UTILITY LlNtS

NON-PERENNIAL STREAM

FLOODING OR FLOODING RIGHTS .SUBDIVISION OR COMPOSITE PLAN

RESERVATIONS

ORIGINAL SHORELINE MARSH-eR MUSKEG MINES "

TRAVERSE MONUMENT

DISPOSITION OF CROWN LANDSTYPE OF DOCUMENT

LATENT, SURFACE a MINING RIGHTS.. .SURFACE RIGHTS ONLY^.^., MINING RiGHTSONLY .......

l tASF SURFACE St MINING RIGHTS.—

" .SURFACE RIGHTSONLY..... ..

SYMBOt

e o l

LfCENCE OF OCCUPATION

ORDER-IN COUNCIL .....

RESERVATION .^.,. ...^ ^CANCELLED .,...... ....SAND 8( GRAVEL ..... ...

™. ft™. a.... y--OC

NOT*: MINING RIGHTS IN PARCELS PATEN T td "W lo M "O MA 1 6,1913, VESTED IN ORIGINAL PATgNTfct BV THE PUBLIC

— LANDS ACT R S.O. 1970. CHAP 380, St: ~ A3. MJ&SCC 1.

SCALE: l INCH - 40 CHAINS

FEETO 10OO 2OOO 6OOO

O 700 METRES

100Of '' KM!

2OOO (2 KM

mi AWABIKOBA LAKE•: {\ ' ' . '

•v " h

M.N.R, ADMINISTRATIVE DISTRICT

TERRACE BAYMINING DIVISION l

THUNDER/BAYLAND TITLES/ REGISTRY (VISION

THUNDER BAY

Ontario

Ministryof LandNatural ManagementResources Branch

FEB. 1982

G-620

OuoO)

-N-

HEMLO PROJECT

TUNDRA GOLD MINES

ELECTROMAGNETIC PROFILE MAP

COAXIAL

SCALE !7I5,OOO O l K i lorn* t r*

1/2 1/2 Mil*

W AERODAT LIMITED

March-June 1983

N. T. S. No :

MAP No-

86-00'

49*45^

AERODAT HEM SYSTEM RESPONSE VERTICAL HALF-PLANE

HELICOPTER ELECTROMAGNETIC SYSTEMCoil Configuration -Coaxial

Separation -7 metresFrequency -4500 Hz.

Mean Sensor Altitude -30 metresHorizontal Positioning-MRS m radar positioning

p.p.m. 30 i

20 :

10 :

O

In-phase

Quadrature

100IN-PHASE (ppm)

42C135WW46 2.6841 WABIKOBA LAKE 210

-N-

HEMLO PROJECT

TUNDRA GOLD MINES

ELECTROMAGNETIC PROFILE MAP

COPLANAR

SCALE IXI5,OOO O 1 K t tom* t r*

1/2 1/2 Mil*

VAERODATLIMITED

DATE' March-June 1983

N. T. S. No :

MAP

86-00

HELICOPTER ELECTROMAGNETIC SYSTEM

Coil Configuration -CoplanarSeparation - 7 metresFrequency -4100 Hz.

Mean Sensor Altitude ~3O metresHorizontal Positioning-MRS IE radar positioning

p.p. m. 120 i

80 -.

40 -i

O

In-phose

Quadrature

42CI3S*8B46 2.6041 KABIKOBA LAKE 220

HEMLO PROJECT

TUNDRA GOLD MINES

TOTAL MAGNETIC FIELD

SCALE 1/15, OOO O l K t lorn* f r*

1/2 1/2 Mil*

DATE March-June 1983

VAERODAT LIMITED N. T. S. No :

MAP

86-00

48-43'

MAGNETOMETERInstrument : Geometrics G-8O3Mean Sensor Altitude- 45 metresHorizontal Positioning; MRS HI radar positioning

250 gammas.

50 gammas..

10 gammas., contour Interval 10 gammas

42C13SW0046 2.6041 WABIKOBA LAKE 230

f-lil

HEMLO PROJECT

TUNDRA GOLD MINES

VLF-EM TOTAL FIELD

SCALE 1XI5,OOO O l Kilomvtn

t/2 1/2 Mil*

VAERODAT LIMITED

DATE March-June 1983

N. T. 5. No -

MAP No'

86*00'

cLAKE \ ?

SUPERIOR '———"

VLF-EM

Instrument: Herz Totem 2AStation^ NAA Cutler, Maine-17.8 kHz.

Mean Sensor Altitude. 45 metresHorizontal Positioning- MRS UT radar positioning

50^0

contour interval 2 0XoNOTE-- The total field will usually indicate

a local maximum over the upper edge of a steeply dipping conductor.

42C13SW0846 2.6041 WABIKOBA LAKE 240

HEMLO PROJECT

TUNDRA GOLD MINES

INTERPRETATION

SCALE 1/15,000 O l Kilometre

1/2 1/2 Mile

W AERODAT LIMITED

DATE' March-June 1983

N. T. S. No :

MAP

86-00

40*45;

INTERPRETATION

Interpreted conductive axis within bedrockPossible conductive axis within bedrock

. . - . . . Probable cultural conductor

42C13SWee46 2.6041 WABIKOBA LAKE 250

Documents

RPT ON COMBINED HELICOPTER-BORNE MAG/EM/VLF SUR - …