rpt on deep em sur - filethe close spatial association of silver mineralization with ... theory and...

37
31M85NE8839 2.5501 BUCKE 010 Report on DEEP EM Survey on Highland Crow/Copperfields Property, Sharpe Lake, Cobalt by W. O. Karvinen, Ph.D. April 1983 RECEIVED MINING LANDS SECTION W.O. KARVINEN ft Associates Ltd. j?.

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Page 1: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

31M85NE8839 2.5501 BUCKE 010

Report on DEEP EM Survey on

Highland Crow/Copperfields Property,

Sharpe Lake, Cobalt

by

W. O. Karvinen, Ph.D.

April 1983

RECEIVED

MINING LANDS SECTION

W.O. KARVINEN ft Associates Ltd.

j?.

Page 2: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Introduction

In October of 1982, Crone Geophysics Limited carried out a DEEP EM

PULSE EM survey over a portion of the Sharpe Lake property owned jointly by

Highland-Crow Resources Ltd. and Copperfields Mining Corp. Purpose of the

survey was to map out the graphitic and sulfidic "interflow bands" which

strike westward from Cobalt across Sasaginaga Lake into the Sharpe Lake

sedimentary basin where they are covered by Gowganda sediments in excess of

500 feet. The close spatial association of silver mineralization with

"interflow bands" at Cobalt along with other parameters such as geochemistry

and structures were then used to delineate drill target areas in the Sharpe

Lake Basin.

Property Description

The property comprises 18 contiguous claims in north-central Coleman

Township (see map). The grid and survey, however, cover only seven contigu

ous claims in the group; these are: S607422, S647812, S630758, S630759,

5647813, S647814 and S647815. The claims are registered in the name of

Highland-Crow Resources Ltd. of Vancouver.

Location and Access

The property is located in lots 8 to 10, Cone. VI of Coleman Township,

approximately one mile west of the Town of Cobalt (see map). It is readily

accessible via the seasonal road to Sharpe Lake.

Method

Theory and methodology of the DEEP EM PULSE EM method is described in

detail in the Appendix. For the present survey, two primary loops, measuring

2000 ft. by 1000 ft. were used (see map). Vertical and horizonal component

Page 3: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

lri

LOCATION MAP

Scale* li50 000

Cobalt

Location of Sharpe Lake Property

Page 4: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

^ . . .1__X-.U-

296791

Highlarid-Crow/Copperfields Claims in Coleman Township

(Scalet l" - ^ mi.)

Page 5: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

- 2 -

readings were taken at 100 ft. spacings along north-south grid lines spaced

400 feet apart (see copy of notes and map). Operators were Tim Brennan of

Crone Geophysics Limited and Michael Grant of W.O. KARVINEN it Associates Ltd.

Interpretation

Results of the survey were plotted and interpreted by Sbynek Dvorak,

Chief Geophysicist of Teck Explorations Limited. The profiles and interpreted

axes of conductors are attached to the back of this report.

Discussion of Results

According to Dr. Dvorak, the sharp, strong anomalies at the south end

of the survey grid reflect shallow anomalies in the basement at depths less

than 300 feet, while the broad but distinct anomaly in the north is at a depth

greater than 300 feet. The axes of the anomalies line up well with known

conductive interflow-bands at surface to the east and their general east-west

trend indicate their continuation into the Share Lake sedimentary basin.

Subsequent drilling to basement confirmed the presence of conductive

interflow bands as delineated by the DEEP EM method. The north anomaly was

encountered at a depth of 843 feet while the south anomalies were intersected

at depths of 140 to 230 feet below surface (see separate report on diamond

drilling). In each case the conductors were sulfidle-graphitic Interflow

bands in Archean volcanics.

Conclusion

The DEEP EM method, using a large primary loop configuration, readily

detected the very conductive graphitic interflow bands at depths of at least

850 feet below non-conductive Gowganda sediments. This appears to be a very

efficient method of mapping out at depth the important interflow bands in the

Cobalt area.

Dr. William 0. Karvinen

Page 6: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

CERTIFICATE

l, William Oliver Karvinen, of R. R. 12, Wahnapitae, Ontario, a

geological consultant and President of W. O. KARVINEN tt Associates Ltd.,

do hereby certify that:

The information contained in this report is accurate and correct;

That I have a 2*# net profits carried interest in the property described

herein;

I hold a Doctorate of Philosophy and an Honours B. Se. in geology from

Queen's University (1974 and 1968) and a Master of Science in geology

from the University of British Columbia (1970) |

l am a Fellow of the Geological Association of Canada and a member of the

Canadian Institute of Mining and Metallurgy.

,, w , KWahnapitae, OntarioA'ril 1 6 ' 1 983 Dr. William 0. Karvinen

Page 7: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Appendix

Page 8: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

DESCRIPTION OF THE DEEPEM PULSE EM METHOD

(1) This ground EM method is suited for deep penetration (50 to 200 meters) applications. In order to obtain deep pene tration a strong primary field must be produced. This is achieved by using a larger area (usually 100M x 100M or greater) transmit loop consisting of a single turn of 110 AWG wire. The receiver coil takes both vertical and horizontal (directed along the survey line) measurements at stations 25 meters apart located on lines outside the Tx loop and perpendicular to it (as in a Turam survey). Unlike Turam, lines can be read beyond the edges of the Tx loop. The other horizontal component (perpendicular to the survey lines) should also be read in situations where the conductor is not a simple sheet like form, striking nearly perpen dicular to the survey lines.

(2) Since the DEEPEM method measures only secondary fields it is not affected by rugged terrain unless the terrain itself is conductive. It has the disadvantage of any large loop system in that energizing the conductor is dependent on the primary field cutting the conductor at a good angle. If the conductor is not cut at a good angle it will not be energized and will not be detected. This blind spot can be eliminated by using two separate transmit loops on each side of the target area. In areas of very high sur face conductivity ring currents occur outside the transmit loop and are concentrated in the area where survey measurements are made. In situations like this the DEEPEM method should not be used and the In-Loop Pulse EM method should be used instead.

(3) Interpretation of the DEEPEM results is by means of com parison with model study curves. The DEEPEM method is excellent in its ability to distinguish if a conductor is vertical, dipping or flat. With vertical conductors the vertical measurements produce

a symmetrical cross-over anomaly and the horizontal component produces a positive peak at the cross-over point. For a flat con-

Page 9: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

. 2 -

ductor the vertical component produces a positive anomaly and , the horizontal component produces a cross-over. Dipping con- i ductors produce patterns between the two extremes. Width of•f-

t conductors is best determined by the use of two transmit loopsl on either side of the conductor. The method is very good atl detecting deep small, lens-like conductors when the small con-I ductor is not too far removed from the transmit loop (i.e. with-: in 200 meters).

September 1979.

Page 10: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

DEEPEM

- 3 - OPERATING INSTRUCTIONS!

Setting Up The Transmitter(480 Watt y 24 Volt Output) For Surveys Outside The Tx Loop

1.1 The Tx loop is laid out as a single turn of 110 AWG copper wire in the form of a square 100 meters x 100 meters or 400* x 400*. Twist or clamp connectors are used at three corners. The loop should have a resistance of not less than l Ohm and not more than 1.5 Ohms. The loop ends are connected to the "High Voltage" clamps of the Tx control box.

1.2 Connect the motor generator (24 Volt output) wires - plus (red) and minus (black) to the battery clamps. Connect the Tx control input wires plus (red) and minus (black) to the same battery clamps. Check that the in ternal plug of the battery pack has been plugged in - (unplugged for shipping safety).- Place Tx power switch in "Sync" position.- Check that circuit breaker is "on.

1.3 Place the "Sync" switch at position required for 10ms or 20ms operation radio sync or cable sync. If cable sync is being used put blue wire on minus and yellow on plus. If radio sync is being used raise antenna to full height. Current ammeter should read 0.5 amp.

1.4 Open gasoline tank air valve and start engine.

1.5 Turn on loop Tx current by turning switch from "Sync" to "Pulse" Cs second delay). Current on ammeter should read between 6 and 8 amps (peak current is actually 20 amps).DO NOT SWITCH FROM 10MS TO 20MS WITH PULSE ON.

1.6 If the booster antenna is required for the radio sync it should be set up and connected in place of the rod antenna.

Receiver

1.0 Plug in the receiver coil, turn preamplifier coil bat teries ON. Switch receiver to the appropriate "SYNC" position (usually 10ms RADIO) - SYNC SIGNAL SHOULD BE GREATER THAN 900 on the meter. Green flasher should come on and remain solid.

1.1 Setting up the PP positive and the timing with the receive coil vertical at approximately 100 meters outside the loop, the transmit power on and the "sync green flasher on".

Page 11: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

DEEPEM

- 4 -

Function switch at "ADJ", sample switch at "PP" , meter gain switch at "x 100" gain pot at "100". Turn the timing pot to the zero position then rotate clockwise until the meter needle starts to rise (set to positive . side if negative using PP positive switch). Adjust timing pot (and gain pot) until the timing pot is set such that the needle is at the peak of the positive response and lock the pot in this position.! Set the gain pot at 500.* Do not move the "set PP positive", the timing or gain pots, for all readings wxtn cms cransHtTt loop.

1.2 Take a vertical reading and then a horizontal reading(coil pointed along the survey line with the head towards the Tx loop). Leave gain pot at "500" (see noise) and do not worry if the needle goes off scale on ADJ when the receiver is close to the Tx loop.*

1.3 Record both vertical and horizontal readings for eachstation - if a conductor is detected then a perpendicular horizontal reading should be taken when directly over the conductor (for strike direction determination). When directly over a conductor peak, positive reading is ob tained with a low vertical reading. The direction the receive coil head is pointed must be recorded.

(1) Instructions for setting Z.T.S. can be found in the PBM operating instructions.

(2) In areas of low noise,gain pot may be set in the 750 800 range.

(3) At any station. It is important that maximum distance be maintained between the receiver and receiver coil, eg. when taking the horizontal measurement maximum distance is maintained when the receiver is between the receiver coil and the transmit loop.

Page 12: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

DEEPEM SURVEY

- 5 -

Readings:Vertical Horizontal

Surface

Secondary Field

onductor

40 -120 O +120 O +120 +200 +120

+40 O

Tx Loop

Vector Plotting Will Pinpoint Conductor's Depth Location and Possibly Dip. Plot Over This Range.

Sample l

(l)Vertical

(DHorizontal

Page 13: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

- 6 -

URVEY PROCEDURE

Plan of the Field Survey

Readings every 100' or 25 meters.

Q)4i ' V O Z O ^

O O H

fla 1 Surface

Read vertical first Horicontal second (head points toward Tx Loop)

Or

Page 14: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Booster Radio Antenna ' 8

Replacement parts for booster antenna can be obtained at Radio Shack dealerships.Part Description Part Number1/4 Wave Antenna 21-90115M Patch Cord 278-971Antenna Matcher 21-513.6M Patch Cord 278-968F.S. Meter 21-525

Page 15: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

- 7 -

September 1979.

INSTRUCTIONS FOR OPERATION OP BOOSTER RADIO ANTENNA

The booster antenna consists of a 1/4 wave, omni directional antenna. It is assembled as per instructions and mounted on a 5.5 meter (18') mast. A 15M (50') co-axial cable feeds from the base of the antenna into an antenna matcher. An additional .6M (2 1 ) patch cord feeds from the matcher into a field strength meter and from here to the transmitter.

To attach antenna to the transmitter, the original rod antenna supplied with the unit, must be removed. The co axial cable feeding from the field strength meter has two alligator clips - one red, one black. The red clip is attached to the centre pole of the original mount and the black clip grounded on the transmitter case.

To tune the antenna, set the "FWD-REF" switch on the field strength meter to the "FWD" position. Adjust the "CAL" control for a full scale reading on the meter (to the "SET" mark} and then set "FWD-REF" switch to "REF". The reading on the SWR scale is the ratio of the impedance mismatch between the co-axial cable and the antenna. This should be adjusted to a minimum by altering the settings on the antenna matcher. The operator will have to experiment with the matcher to obtain the optimum minimum reading. The antenna is now ready for trans mission.

Properly tuned, the antenna is capable of transmitting a signal to any point within a DEEPEN survey area (using 100M 2 of 400 ft 2 transmit loop). When in rough terrain care should be taken to place the antenna on a high point maximizing the effectiveness of the transmitted signal.

Page 16: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 17: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 18: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix
Page 19: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix
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Page 21: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 22: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 23: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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REMARKS

Page 24: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 25: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 26: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

31M05NE0039 2.5501 BUCKE900

1983 11 09 2.5501

Mining RecorderMinistry of Natural Resources199 Larch StreetSudbury, OntarioP3E 5P9

Dear Sir:

RE: Geophysical (Electromagnetic) Survey on Mining Claims S 607422 et al 1n the Townships of Coleman and Buck*.

The Geophysical (Electromagnetic) Survey assessment work credits as listed with my Notice of Intent dated October 17, 1983 have bien approved as of the above date.

Please Inform the recorded holder of these mining claims and so Indicate on your records.

Yours very truly

E.F. AndersonDirectorLand Management Branch

Whitney Block, Room 6643Queen's ParkToronto, OntarioM7A 1W3Phone: 416/965-1380

R. P1chette:sc

cc: Highland-Crow Resources Ltd 1199 West Hastings Straat Vancouver, B.C. V6E 2K5

cc: Resident Geologist Sudbury, Ontario

Page 27: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

/^z^\ Ministry ot Technical Assessi IVL/1 Natural ... . - ... VVJ Resources Work Credit*Ontario ^fe

ment fru 2.5501

u*t* Mining Recorder's Report of1983 K) 17 Work *40 -

Recorded Holder HIGHLAND-CROW RESOURCES LTD

Township or AreaCOLEMAN AND BUCKE TOWNSHIPS

Type ot survey and number ot Aiteisment days credit per claim

Geophysical 40Eltctrcmignttle T" days

Rfriinmptrir days

Other days

Section 77 (19) Set "Mining Cliimt Aliened" column

Rpnlngical days

Geochemical riayi

Man days LJ Airborne LJ

Special provision Q Ground 03

l~l Credits have been reduced because of partial coverage of claims.

O Credits have been reduced because of corrections to work dates and figures of applicant.

Mining Claims AssetMd

S 607422 647812 630759 647813 630758 647815

Special credits under section 77 (16) for the following mining claims

20 DAYS CREDIT

S 647814 647804

No credits have been allowed for the following mining claims

LJ not sufficiently covered by the survey i— l Insufficient technical data filed

The Mining Recorder may reduce the above credits if necessary In order that the total number of approved assessment days recorded on each claim does not exceed the maximum allowed as follows: Geophysical — 80; Geological — 40; Geochemical — 40; Section 77(19)—60:

Page 28: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Ministry ofNaturalResources

'ario

1983 10 17

Your file:

Our file:2,5501

Mr. V.C. MillerMining RecorderMinistry of Natural Resources199 Larch StreetSudbury, OntarioP3E 5P9

Dear Sir:

Enclosed are two copies of a Notice of Intent with statements listing a reduced rate of assessment work credits to be allowed for a technical survey. Please forward one copy to the recorded holder of the claims and retain the other. In approximately fifteen days from the above date, a final letter of approval of these credits will be sent to you. On receipt of the approval letter, you may then change the work entries on the claim record sheets.

For further information, if required, please contact Mr. F.W. Matthews at 416/965-1380.

Yours very truly,

..F. Anderson Director Land Management Branch

Whitney Block, Room 6643Queen's ParkToronto, OntarioM7A 1W3Phone: 416/965-1316

R. Pichette:mc

Ends:

cc: Highland-Crow Resources Ltd 1199 West Hastings Street Vancouver, B.C. V6E 2K5

cc: Mr. 6.H. FergusonMining b Lands Commissioner Toronto, Ontario

845

Page 29: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Ministry ofNaturalResources

Ontario

Notice of Intent

for Technical Reports

1983 10 17

2.5501

An examination of your survey report indicates that the requirements of The Ontario Mining Act have not been fully met to warrant maximum assessment work credits. This notice is merely a warning that you will not be allowed the number of assessment work days credits that you expected and also that in approximately 15 days from the above date, the mining recorder will be authorized to change the entries on his record sheets to agree with the enclosed statement. Please note that until such time as the recorder actually changes the entry on the record sheet, the status of the claim remains unchanged.

If you are of the opinion that these changes by the mining recorder will jeopardize your claims, you may during the next fifteen days apply to the Mining and Lands Commissioner for an extension of time. Abstracts should be sent with your application.

If the reduced rate of credits does not jeopardize the status of the claims then you need not seek relief from the Mining and Lands Commissioner and this Notice of Intent may be disregarded.

If your survey was submitted and assessed under the "Special Provision-Performance and Coverage" method and you are of the opinion that a re-appraisal under the "Man-days" method would result in the approval of a greater number of days credit per claim, you may, within the said fifteen day period, submit assessment work breakdowns listing the employees names, addresses and the dates and hours they worked. The new work breakdowns should be submitted direct to the Lands Management Branch, Toronto. The report will be re-assessed and a new statement of credits based on actual days worked will be issued.

846 (82/5)

Page 30: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Report of Work(Geophysical, Geological, Geochemical and Expenditures)

The Mining Act

r 7auctions: — Please type or print.

— If number of mining claims traversedexceeds space on this form, attach a list.

Note: - Only days credit! calculated in the"Expenditures" section may be enteredin the "Expend. Days Cr." columns.

— Do not use shaded areas below.

Geophysical oleman -and Bucke twps.

Highland-Crow Resources Ltd.

Pro*pector't Licence No.

T- 1073

1199 W. Hastings St., Vancouver, B.C. V6E 2K5t,--** Survey Company

Crone Geophysics

Date of Survey (from Si to)

pOy4 ! |8?|

Toul Mil** of line Cut

5.3 milesName and Addre** of Author (of Geo-Technical report)

^^^^^Dr. W. 0. Karvinen, R.R.#2, Wahnapitae, Ontario POM 3COCredits Requested per Each Claim in Columns at rightSpecial Provitiont

For first survey:Enter 40 days. (This includes line cutting)

For each additional survey: using the same grid:

Enter 20 days (for each)

Men Days

Complete reverse side and enter total (s) here

Airborne Credits

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

Geophytical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geologicel

Geochemical

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Electromagnetic

Magnetometer

Radiometric

Days per Claim

40

Days per Claim

Days per Claim

Expenditures (excludes power stripping)Type of Work Performed

Performed on Claim(s)

Calculation of Expenditure Days Credit* Total

Total ixpanditures Day* Credit*

U MlBl-l 1Instruction*

' Total Days Credit* may be apportioned at the claim holder's choice. Enter number of day* credits per claim selected In column* at right.

Date

Feb. 28, 1983Recorded Holder or Agent (Signature)

IT Certification Verifying Report of Work

Mining Claims Traversed (List in numerical sequence)

Total number of mining claim* covered by this report of work.

l i - -we-

tm

l hereby certify that l have a personal and intimate knowledge of the facts set forth in the Report of Work annexed hereto, having performed the work or witnessed same during and/or after its completion end the annexed report is true.

Ne me end Postal Address of Parson Certifying

______W. O, Karvinen, R.R. #2, Wahnapitae, Ontario POM 3CODate Certified

Feb. 28. 1983Certified by (Signature)

MZ (81/9)

Page 31: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

Ministry (XNaturalResources

Ontario

GeotechnicalReportApproval

File

Mining Lands Comments

^te^***~JL. ~<J^.

|~| With to tee again with correctioni

To: Geology - Expenditures

|~| With to ice again with correction!

To: Geochemistry

[~1 With to tee again with correctiont

|- l JTo: Mining Lands Section, Room 6462, Whitney Block. (Tel: 5-1380)

16*3(61/10)

Page 32: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

1983 06 01

33-28

25501

Mr. V. C. MillerMining RecorderMinistry of Natural Resources199 Larch StreetSudbury, OntarioP3E 5P9

Dear Sir:

We have received the reports and maps for a Geophysical (Electromagnetic) survey submitted under SpedaV Provisions (credit for pterforaance and Coverage) on mining claims S 607422 et al 1n the Townships of Coleman and Bucke.

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

Yours very truly,

E. F. AndersonDirectorLand Management BranchWhitney Block, Room 6450 Queen's Park Toronto, Ontario M7A 1W3Phone: (416) 965-1380

A.Barnmd

cc: Highland-Crow Resources Ltd. 1199 West Hastings Street Vancouver, B.C. V6E 2K5Mr. W. 0. Karvinen R. R, #2Wahnapitae, Ontario POM 3CO

Page 33: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

l/

v"

Page 34: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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Page 35: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

LOT LOT5 64-7804 LOCATION MAP

Scale s 1'50 000

5646055

BUCKE TP

COLEMAN3647800564-77995647315

SHARP LAKE x GRID

3647814 l

S66I736

.- *

— \—_ l __ ' i _ —__ __

56480566307585647613

SASAGINAGA LAKE

3648050

5648057S6GI739

3630759

Sharp Lake Grid Coleman and Bucke Townships

661740S 607422

DEEP EM LOOP CONFIGURATION

— — a xis of deep EM anomaly

HIGHLAND - CROW RESOURCES LTD. COPPERFIELDS MINING CORP.

36617413661742 Note:(P)439 is not part of the claim group.

2 65*3IM05NE0039 2.5581 BUCKE 210

Page 36: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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HIOHLANO - CROW RISOURCES LTD, COWRWILDf MININO CORF,

31M05NEC039 2.5501 BUCKE

Page 37: RPT ON DEEP EM SUR - fileThe close spatial association of silver mineralization with ... Theory and methodology of the DEEP EM PULSE EM method is described in detail in the Appendix

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PROFILE OF DEEPEM SURVEY Sharp Lake Grid, Cobalt

scale: 1" to 200'HIGHLAND - CROW RESOURCES LTD.

COPPERFIELDS MINING CORP.

Feb. 1983

230