s, 3 golder associates - · pdf filel i 2.1229 mcdonough golder associates consulting...

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2.1229 MCDONOUGH

Golder AssociatesCONSULTING GEOTECHNICAL AND MINING ENGINEERS

REPORT TO

GOLD FIELDS RESOURCES CANADA LTD.

GEOPHYSICAL INTERPRETATIONFOR

THE GOLD SEEKERS BAY CLAIM GROUP

MINING

RED LAKE ONTARIO

010S, 3

SECTION

Di stributi on:

6 copies - Gold Fields Resources Canada Limited Mississauga, Ontario

2 copies Golder Associates Mississauga, Ontario,

October, 1981 811-1311

GOLDER ASSOCIATES (EASTERN CANADA) LTD. ' 3151 WHAR10N WAY. MISSISSAUGA, ONTARIO, CANADA L1X 2B6 * TELEPHONE (416)625-0094 ' TELEX 06-961136

OFF/CCS IN CANADA * UNITED S TATES ' UNITED KINGDOM ' AUSTRALIA

lOctober, 1981 i 5aNMNwee24 2. 4889 MCDONOUGH

LIST OF P1 !CURESll 1. Location Map for Survey Area

m 2 . Airborne Mag and INPUT Data for Survey Area

3. Contour Map of Ground Mag Survey Data - Part l

A. Contour Map of Ground Mag Survey Data - Part 2

l5. Contour Map of VLF Horizontal Field Strength and

l Profiles of Dip-angle - Part l

6. Contour Map of VLF Horizontal Field Strength and

Profiles of Dip-angle - Part 2l

l 7. Contour Map of Fraser Filter Applied to VLF Dip-angle

Data - Part l

8. Contour Map of Fraser Filter Applied to VLF Dip-angle

l Data - Part 2

M 9 . Interpretation Map for Survey Area - Part l

B 10. Interpretation Map for Survey Area - Part 2

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1 * l NTRODUCTION

This report presents an interpretation of the geophysical

data on the Gold Seekers Bay claim group of Gold Fields

Resources Canada Limited. The Gold Seekers Bay Area consists

of twenty five claims located in the Gold Seekers Bay area of

Red Lake. The claim group lies in the south eastern quarter

of McDonough Township. The majority of the claim group lies

underwater. The land portion of the claim group lies almost

in the centre of the area and consists of the peninsula which

forms the Post Narrows in the area of Red Lake between Gold

Seekers Bay and Hoyles Bay.

The previously available geological and geophysical data have

been compiled to provide a background basis for analysis of

the current field seasons survey data. The report provides a

brief summary of this information as well as a description of

the ground mag and VLF data which is the main subject of this

report. The data sets have been combined to generate the

interpretation map of the survey area.

Figure l shows the location map indicating the position of

the survey area. The claim numbers for the group are

indicated on this map. The claims define an area which runs

roughly northeast - southwest. This trend parallels the

major geologic strike in the survey area.

2 ' SUMMARY

The Gold Seekers Bay claim group is located towards the

northern edge of the Red Lake Greenstone Belt. In the survey

the regional structure trends northeast-southwest. The rocks

in the area are a mixed sequence of intermediate and mafic

metavolcanics blended with metasediments .

Golder Associates


October, 1981 2 811-1311

In the survey area the geology is distinctly zoned with a

series of contacts running northeast - southwest. A number

of synclinal and anticlinal axes run parallel to the zoning

of the geology. Bedding planes dip steeply to the northwest

and to the southeast depending on which side of the synclinal

or anticlinal axes the outcrop is observed. Dips tend to be

in the range 70 to 90".

Taking a section running from the northwest to the southeast

across the survey area the following rock types are

encountered. At the very northwest end of the section there

is a wide zone of mafic metavolcanics. The mafic metavol-

canics are in direct contact with a narrow band of interme

diate volcanics, which abut a zone of clastic metasediinents

to the southeast. Next comes another band of mafic volcanics

followed by another zone of clastic metasediments. The

survey area is bounded on the south by a third zone of mafic

metavo]canics. The contacts between the mafic metavolcanics

and the clastic metasediments are frequently characterized by

a narrow zone of what are called chemical metasediments. The

chemical metasediments consist of chert, iron formation,

pyrrhotite, pyrite, graphite and marble.

At the very northeast end of the survey area the normal

geologic sequence is disturbed by a zone of basic to ultra

basic intrusive rocks consisting mainly of gabbro, perido

tite and pyroxenite At the southwestern end of the survey

area, a small granodiorite intrusive is observed on the

shore line. The granodiorite intrusive has mineralization in

the vicinity of the contact with the metasediment. Gold,

chalcopyrite, arsenopyrite, pyrite, sphalerite, and galena

are observed. Further detailed information of the geology

can be obtained by reference to the Ontario Geological

Golder Associates


October, 1981 3 811-1311

Survey Preliminary Map PI 24 O for McDonough Township. Since

the survey area is primarily covered by water it is difficult

to assess the continuiuty of the geological structure out

from the shore line. From the regional magnetics and the

general lineation of the structure it would appear that the ,

general zonings which run northeast - southwest carry on

underneath the water with little discontinuity.

3. SUMMARY OF GEOPHYSICAL DATA

3. 1. Etistin Data

The geophysical data previously available for the Gold

Seekers Bay claim group consists of the airborne magnetic and

INPUT survey carried out by the Ontario Geological Survey in

1978. The maps presenting this data for the area of interest

are the OGS Preliminary Maps Nos . 1571 through 1574. The

portion of the map sheet 1572 directly applicable to the Gold

Seekers Bay claim group is shown in Figure 2.

The airborne rnag shows two strong magnetic zones which

trend northeast-southwest. These magnetic highs flank a zone

of lower mag response which conincides with the main part of

the current survey area. The magnetic highs peter out towards

the southwest part of the survey area. The INPUT data shows

a large number of 5 and 6 channel anomalies. The conductors

follow the regional geological strike. The conductor zones

appear to run right across the whole survey area from

southwest to northeast. The general nature of the mag and

the INPUT responses are typical of the iron formation type

responses observed over the whole Red Lake Greenstone Belt

Area.

Golder Associates


October, 1981 4 811-1311

3.2 Ground Survey Work

The ground survey work for the Gold Seekers Bay claim group

consists of a combined VLP and magnetometer survey carried

out by Phoenix Geophysics for Gold Fields Resources Canada

Limited. The survey work was carried out in April of 1981

and, since the majority of survey area is water covered, the

survey was carried out on the ice before breakup in the

spring.

The survey work for the area was laid out with a base line

running parallel to the geologic strike. Zero on the base

line is at the southwest corner of the area. The survey work

was carried out on 30 northwest-southeast trending lines

spaced 400 ft. apart. The lines run northwest and southeast

from the base line to the edge of the claim group area. A

total of 22.7 line miles were surveyed including the base

]ine comprising a total of 1055 VLF stations and 1115 mag

stations. The VLF and mag station interval was nominally

100 ft.

The magnetometer survey was carried out using the geometrics

G-816 magnetometer and MR-10 base station mag. The mag data

were corrected for diurnal drift by differencing the survey

data and the base station data in the conventional manner.

The magnetometer results are shown in contoured form in

Figures 3 and 4. In view of the odd shape of the claim group

area it has been necessay to split the display of all ground

survey data into two parts. Part one of the survey area

consists of the southwestern half of the claim group whereas

part two of the area consists of the northeastern part of the

claim group. The general features of the ground survey data

corroborate the results of the airborne mag survey. A number

of localized strong magnetic responses are observed scattered

over the whole survey grid.

Golder Associates


October, 1981 5 811-1311

The VLF survey was carried out using a Phoenix VLF-2 unit

operating on Seattle, Washington at a frequency of 18.4 khz.

The Seattle, Washington station is located west of the survey

area which results in the VLF signals being optimally coupled

to east-west striking conductors. The data collected at each

station consisted of total horizontal magnetic field strength

and dip angle of the VLF magnetic field. The total

horizontal field strength, which has been corrected for

station and receiver drift, is shown along with dip-angle

data in Figures 5 and 6. The instrument has been calibrated

to read 150 units at a fixed reference point in a background

zone of the survey area. The data read from the instrument

have been plotted directly on to Figures 5 and 6 and have

been contoured. No attempt has been made to convert the

horizontal field strength into the percent variation in field

strength. Areas of high horizontal field strength are

indicated by values in excess of 150 units while low areas

are those with values less than 150 units. For contouring

purposes the horizontal field strength is contoured for

values above 200 or under 100 units. The intermediate range

of data values tends to be quite erratic and is consistent

with normal background fluctations and noise.

The dip-angle data is also shown in profile form on Figures

5 and 6. The format for the correct selection of crossovers

is indicated in the legend on the side of Figures 5 and 6.

Examining the data for both field strength and dip angle

crossovers, large amplitude dip-angles and sharp crossover

regions are frequently accompanied by increased horizontal

field strength.

Golder Associates


October, 1981 6 811-1311

The dip-angle data for the area has also been treated with

the conventional Fraser filter. The results of the Fraser

filter processing are shown in Figures 7 and 8. Only the

positive going output of the filter has been contoured.

In general, the VLF data shows strong conductors are

frequently coincident with strong magnetic responses. In

comparing the VLF data to the geology it would appear that

the conductor axes follow major geologic contacts in the

area. Most of the conductors run continuously across the

survey area southwest or northeast. At the very top of the

Gold Seekers Bay there appears to be some bending of the

conductor axes. This could be indictive of east-west

faulting in the area.

4 . I N TERP RET AT ICW

The interpretation of all available data has been carried out

at two levels. In the first stage a general overview of the

major features of the property are presented. In the second

stage a more detailed synopsis of the distinctly anomalous

zones is given. The available data has been synthesized into

a single map using the following steps.

a) All features having mag responses which are in excess

of 1500 gammas and/or which exhibit distinctive trends

are indicated by light shading.

b) Discrete high intensity mag anomalies exceeding 2000

gammas are indicated by more heavily shaded zones.

Golder Associates


October, 1981 7 811-1311

c) All INPUT anomolies from the OGS survey have been

indicated on the interpretation map using the standard

plotting convention of Questor Surveys.

d) VLF conductor axes have been picked from the Fraser

filter data and are indicated by heavy dotted lines.

Zones of very strong response are indicated by solid

heavy lines. A strong VLF response is characterized by

having a Fraser filter output in excess of 30 units

with an accompanying high horizontal field strength.

e) The VLF conductor axes provide the best means for

identifying important zones in the area. Each conductor

has been numbered in order to facilitate discussion in

the following text. The numbering scheme for the

conductors starts at the northwest side of the property

and increases towards the south eastern edge of the

property.

f) The shoreline of Red Lake has been indicated on all the

survey data maps.

Interpretation maps for the area are shown in Figures 9 and

10. Figure 9 deals with the southwestern portion of the

area whereas Figure 10 indicates the results for the

northeastern portion of the claim group.

Golder Associates


October, 1981 8 811-1311

4. l General Features

The geophysical data reflects the general structural features

and geologic contacts in this area. All the VLF conductor

axes trend northeast-southwest. The majority of the

conductors appear to be associated with either contacts or

synclinal and anticlinal axes. The magnetic responses are

generally more discontinuous than the VLF conductors. The

magnetic contour-map is composed of a number of localized

highs which generally tend to be elongated in the northeast-

southwest strike direction.

The majority of the strong VLF conductors and mag highs are

directly correlated to mapped zones of chemical metasedi-

ments. The rnag highs must be related to localized zones of

magnetically rich iron formation. The conductors are an

expression of the combined iron formation plus graphite and

possible sulphide occurrences.

There are two main features of the overall integrated data

which are worthy of note. The first feature is the abrupt

turning of the conductor axis at the most northern part of

the survey area. Conductor 3 has a primarily northeast-

southwest trend in claim blocks 541448 and 541449. The

conductor swings markedly to an east-west trend in claim

block 541450. The conductor axis has an associated magnetic

response which shows the same kind of swing as observed in a

zone of intermediate metavolcanics which runs through this

area. The deformation in the rnag anomaly and the conductor

axis could well be associated with the basic intrusive found

farther to the northeast.

The second feature of note is a set of 3 inferred faults

which cut across the south western portion of the claim

block.

Golder Associates


October, 1981 9 811-1311

The most northerly fault strikes slightly south of east and

appears to extend right across the entire claim block. The

faults are inferred from the deformation of the conductor

axes and also from the deformation in any linear mag features

which run through the area. The most northerly inferred

fault is a strong feature on the aeromagnetic data and can be

seen continuing far to the east and to the west of the claim

block area. A fault has been mapped in the outcrop east of

Post Narrows directly on strike with the most northerly fault

zone. The other two inferred faults are much less

pronounced. Faulting is also observed to the east of Post

Narrows in areas where outcrop is found.

The INPUT conductors show a good correlation with the VLF

conductor axes. In general the INPUT conductors axes show all

the same features as VLF responses. Two INPUT conductors

both parallel shores of Gold Seekers Bay. The amplitude of

both of these conductors vary significantly as the flight

direction alternates back and forth. This type of response

would suggest that the conductors are dipping. The south

eastern conductor would appear to be dipping to the northwest

while the northwesterly conductor would appear to be dipping

to the southeast. Such behaviour is consistent with the

tightly folded geology in the area.

4.2. D e tajH ̂ ^ J^JLsj^u ssion

Each of the main VLF conductor axes identified on the

interpretation map is discussed in detail. The discussion

consists of noting the correlation of the conductor with the

magnetic response and with the observed geology in the area.

Golder Associates


811-1311

Conductor 1^

Conductor l is a weak VLF response located at the edge of a

magnetic high in the northern part of the claim block. The

only outcrop in the area is a coarse grained gabbro.

CjDnductoj 2^

Conductor 2 runs through a zone of inferred mafic inetavol-

canics. There is no mapped feature directly associated with

the magnetic response for this conductor. Although there is

no geologic indication as to the source of this conductor,

just west of the claim block area there is a zone of iron

formation.

CjDndjuctor 3^

Conductor 3 appears to be directly related to an iron

formation which lies along the contact between mafic and

intermediate volcanics. This conductor appears to continue

on to the southwest and join with conductor 3a. There is a

strong magnetic response associated with this conductor

a]though the conductor axis does not follow the magnetic high

in detail. The main feature of note is the bending of the

conductor axis at its northeast end. Here the strike

directions turns from northeast to east. The southwestern

extension of conductor 3 probably defines the contact between

the mafic and intermediate metavolcanics in the area. The

source of the anomalous response is most likely the chemical

metasediments, discussed earlier, with iron formation and

graphite being the chief source of conductive response.

Silver, pyrite, and pyrrhotite mineralization are noted at

Golder Associates


October, 1981 11 811-1311

the point where this conductor axis swings from northeast to

easterly in direction.

^PnJLu9tor 4

Conductor 4 appears to run along a synclinal axis in the zone

of intermediate metavolcanics. At the northeast end of the

conductor axis, there is a strong magnetic association. At

the southwestern end of the conductor, the response also

picks up. It appears to be flanked by a magnetic high which

is offset about 200ft. to the northwest. There is a possibi

lity that the conductor could merge with conductor 3a.

Insufficient data is available to infer the connection in

this area.

Conductor 15

Conductor 5 is a long strike length zone which is generally

weak in nature. Three localized zones of high response are

noted along the strike-length. There does not appear to be

any strong magnetic correlation with this conductor.

Correlation with the geology suggests that this conductor

lies along an anticlinal axis in the zone of mafic

metavolcanics. Conductor 5 may be the offset continuation of

conductor 6. A fault is inferred to cut across the area in a

slightly north of westerly trending direction between

conductor 5 and conductor 6. Conductor 6, however, has a

magnetic response associated with it which suggests it could

have a different origin.

Conductor j3

Conductor 6 parallels the northwest shore of Gold Seekers

Bay. It has a magnetic high along the same strike direction.

While this anomaly could be generated by some shoreline

Golder Associates


October, 1981 12 811-1311

effect it is more likely a localized zone of iron formation

which generates the anomaly. A weak conductor is noted just

south and west of the southern end of the conductor 6.

This conductor, denoted 6a, could be an offset section of

conductor 6. A fault is inferred to run through this zone.

Cond uc tor'T.

Conductor 7 is associated with an iron formation which runs

along a good deal of its extent. In the southwest part of

the claim block the conductor is weak and it does not appear

to have any magnetic association. The conductor peters out

around line 24 N. Towards the northeast,the conductor

appears to merge with conductor 5. A strong response is

noted on lines SON and SON where iron formation and other

related chemical metasediments have been mapped. A strong

magnetic correlation exists in this zone of high

conductivity.

Concluctor^ 8^

Conductor 8 is a single ]ine anomaly located over a strong

mag high. Since the conductor is located in the middle of

Gold Seekers Bay there is no geologic indication as to its

source. From the high mag responses, the source is more than

likely a localized zone of iron formation.

Conductor 9^

Conductor 9 is a weak response with no mag correlation. The

conductor axis parallels that of conductor 10. Conductor 9

appears to be cut off at both ends by inferred faults. As

this conductor is also located in the central part of Gold

Seekers Bay with no shore line continuation it is difficult

to assess the source of this anomaly.

Golder Associates


October, 1981 13 811-1311

Ccsnd u c tor 10

Conductor 10 i s a weak but distinct zone which runs the whole

length of the property from the very southern edge to the

very north eastern corner. The conductor axis appears to be

disrupted in the area of inferred faulting. Only one zone of

high response is observed and that is at the shore line of

Hoy]es Bay on lines SON and 84N. This conductor appears to

be associated with a synclinal axis which runs along the zone

of intermediate metavolcanics.

C on due t qr^ 1J^

Conductor 11 and lla appear to be a continuous conductor

running the length of the property in a northeast-southwest

direction. There is a strong mag correlation with this cond

uctor axis. The VLF response appears to pick up in zones of

high magnetic response. This conductor appears to follow a

contact between intermediate and mafic metavolcanics.

Distinctive VLF and mag response would suggested iron forma

tion and other related chemical metasediments are located

along this contact zone. No outcrop indicating this char

acter is shown on the geological map of the area.

Cc^nductor 1 2^

Conductor 12 is a weak anomaly which appears to have some

minor magnetic association. It runs from off-shore in the

southwest to onshore on the peninsula which parallels Post

Narrows. Directly on strike with this conductor but much

farther to the southwest is an amphibole-rich flow with some

associated iron formation. This flow is narrow and appears

to align with the conductor.

Golder Associates


October, 1981 14 811-1311

Conductor 14 shows that a strong conductive response runs

along the northern flank of a northeast southwest trending

magnetic high. While this feature is under water in the Post

Narrows zone, there is an indication of iron formation just

northeast and on strike with this conductor.

C qnc3 uc tor L5

Conductor 15 is a short strike-length, large amplitude

anomaly. It is located on the southeast side of the same

mag feature which parallels conductor 14. It is probably

associated with another localized zone of high conductivity

in an extensive zone of iron formation.

Conductor 1

Conductor 16 is a weak response observed on lines 32 north

and 36 north. There is no apparent mag correlation with this

conductor. There could be any number of sources for this

conductor such as a small zone of pyrite, pyrrhorite or

graphite associated with iron formation located to the north

west, or just the thickening of bottom sediments in Post

Narrows .

5 - SUMMARY, CONCLUSIONS AND RECOMMENDATIONS

The geophysical results appear to reflect the structure of

the area very well. This aspect of the data is extremely

useful in continuing the onshore observed geological features

under the water covered areas of Hoyles Bay and Gold Seekers

Bay. The dominant mag and EM responses appear to be

Golder Associates


October, 1981 15 811-1311

associated with iron formations which are situated at the

contact between mafic volcanics and clastic metasediments.

A number of drill holes are indicated on the OGS Preliminary

Geologic Map for the area. The drill holes, a majority of

which are located in Gold Seekers Bay, could provide valuable

information on diagnosing the exact nature of the conductor

sources in the water covered area. The logs of these drill

holes should be obtained if at all possible, in order to

assist with further interpretation of the data.

There are two areas which bear further investigation in

detail. The first area to be investigated is the area in

claim blocks 541449 and 541450 at the very northern edge of

the claim group. The possibility of localized heat from the

basic intrusions to the northeast could have caused remobili-

zation of economic mineralization. Since mineralization is

already observed in outcrops in the area, this zone is of

particular note.

The second area of interest is the major fault zone which

appears to run across the upper end of Gold Seekers Bay

intersecting the base line between lines 52N and 56N. This

feature may have been a controlling factor in the mobiliza

tion and concentration of economic mineralization.

At this point in time, it is difficult to recommend any addi

tional geophysical survey work which might outline further

areas of interest. The most practical next step is to carry

out a drilling programme to investigate some of the more

Golder Associates

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linteresting features of the area. At that time, further

ground EM survey work might be carried out with a

horizontal-loop system to better define conductor axes and

conductor dips before finalizing the drilling programme.

GOLDER ASSOCIATES

APA/JMB/pds

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lk-J. M. Boyd, P. Eng.

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LOCATION MAP FOR SURVEY AREA FIGURE J

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GOLD SEEKERS BAY

( RED LAKE )LOCATION I/i A P

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D'Q*n G.F? Chkd -

AIRBORNE MAG AND INPUT DATA FOR SURVEY AREA

FIGURE 2

LEGEND

-0-

6 Channel Anomaly

5 Channel Anomaly

4 Channel Anomaly

3 Channel Anomaly

2 Channel Anomaly

25 Gommo Contour Line

50 Gommo Contour Line

IOO Gamma Contour Line

5OO Gommo Contour Line

Magnetic Depression

Flight Altitude 400 Above TerrainAotxxsn-

M90O

C" 2 Amoiitud*.

REFERENCE

DATA FROV ONTARIO GEOLOGICAL SURVEY PRELIMINARY MAP No. 1572

Scale: 1:20000

500 l Kilome*re

M.le 1 1/2 M,l

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Ministry of Na

GEOPHYSICAL - GEOLOl TECHNICAL DA' MCDONOUGH 900

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

TECHNICAL^REPOR^MyST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type of Survey (s) ..—Geophysics - Magnetics S VLF-EM

Township or Area McDonOUqh Twp.ClaimHoider(s) Gold Fields Resources Canada. Limited

#335-230 Lakeshore Rd. East. MississaugaSurvey Company Phoen J X GeOphyS J CS-———————^———

. , , n A. Peter Annan, Golder Associates Author oi Report ^—-.——-.-——————-———.————————Address of Author 3151 Wharton Hay. Mississauga . OntarioCovering Dates of Survey April - October 1981——————

(linecutting to office)

Total Miles of Line Cul

SPECIAL PROVISIONS CREDITS REQUESTED

ENTER 40 days (includes line cutting) for first survey.ENTER 20 days for each additional survey using same grid.

Geophysical- Electromagnetic—2CL

40—Magnetometer ——^—

DAYSper claim

Radiometric Other .——

Geological.

Geochemical.

AIRBORNE CREDITS (Special provision credits do not apply to airborne *urveyi)

Magnetometer. .Electromagnetic. . Radiometric

DATE Zl f WOctober 27, 1981

(enter days per claim)

SIGNATURE

Res. Geol.^.__ _.____Qualifications.

DatePrevious Surveys

File No. Type Claim Holder

MINING CLAIMS TRAVERSED List numerically

.KRL..?.4.?;4.4.?...'. '"""""(prefix)'""

KRL 541449 -

KRL 541452 -

KRL 541453.

KRL 541454 -

KRL 541455 -

KRL 541456.

KRL 541457 .

KRL 541458-

KRL 541459 '

KRL 541460 -

KRL 541461.

KRL 541462 -

KRL 541463 -

KRL 541464 -

KRL 541465 -

KRL 541466-

KRL 541467;

KRL 541468-

(number)

KRL 541469 'TOTAL CLAIMS_25.

837 (5/79)

GEOPHYSICAL TECHNICAL DATA

CjJROl.^l)j;i)RVEYS^ If more than one survey, specify data for each type of survey

Number of Station VI F IfiRR, Mag 1115___________Number of Readings VLF 1055, Magc . . .100 feet .. . 400 Station interval ____________________________Line spacing

vi F nip AnglP Profit Sr^P ]" * ?Q degrees

Contour interval Mag - ?50 gammas, VLF—horizontal field strength - 20—^^————————

Instrument —Geometries G-816, Canadian Mining Geophysics MR-10 base station recorder.Accuracy — Scale constant ________________________________________________

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T^.- i A' û j Base station recorder Diurnal correction method _____uoac auaîun rcûiuei- used recorder as base station.Base Station check-in interval (hours)_______lil!

^ . , . , , 28 Young Street, Red Lake, Ontario. Base Station location and value —————————-^———.—————.^-————.—.

Instrument Phoenix VLF - 2

Coil configuration ___N.A. x;O

d

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Coil separation _____n.M.

Accuracy ________N.A.Method: KH Fixed transmitter CD Shoot back d In line d Parallel line

Seattle, Washington . U.S.A. 18.4 Khz._____________________(specify V.L.F. station)

WHorizontal field strength * Dip angle

InstrumentScale constant

made.

station value and location

Elevation accuracy.

Instrument _______________________————————————————————————Method D Time Domain D Frequency Domain

OParameters - On time ___________________________ Frequency _____

— Off time ____________________________ Range -—— Delay time —.—————————————————————

— Integration time ______________________

Power.Electrode array _—

Electrode spacing ~- Type of electrode ^

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MAG, 1500 CONTOUR AND GREATER OR MINOR FEATURES

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REFERENCE:INTERPRETATIONS MADE BY GOLDER ASSOCIATES, OCTOBER, 1981.

C l nf

FEET

r no

2.4229 MCDONOUGH270

Revisions

Month Day Year

GOLD FIELDS MINING CORP.Title

GOLD SEEKERS BAY MCDONOUGH TWP. RED LAKE , ONT.

Seal. l r 200Date

Drown by Q.W. , C.6.C.

Map No. 1/2

N.T.S. 52 N 4

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4

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