42D16NW8826 63.558 MARTINET LAKE 010
REPORT ON
MAGNETIC, ELECTRICAL RESISTIVITY
and GEOLOGICAL JiECONKXJSSANCE SURVEYS
C OK DUCT ISO OVER TWO GROUPS OP CLAIMS OP
C ARAL MINING COM'ANY LIMITED
TOWNSHIP 79
PORT ARTHUR MINING DIVISION
ONTARIO
Prepared by:
J. D. McCannell, Geologist
GEO-TECHNICAL DEVELOPMENT CO. LTD. 2)4 Wellington Street West, Toronto, Ontario.
BED - TECHNICAt E:V E l,"P ;:P
4aDi6Nwaeae ea.ssa MARTINET LAKE010C
R E P O K T INDEX
Introduction . . . . . . . . . . . . . . . . . . . . . . . . Page l .
Summary and Recommendations . ........ Page 1,2,3
Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 ,k
Location and Access.................* Page [j.
Topography .......................... Page !|, 5
General Geology ....................* Page 5 to 9
General Discussion . . . . . . . . . . . . . . . . . . Page 9,10,11
Interpretation of the GeophysicalResults .....................* Page 11 to 15
Survey Data .......................o. Page 15 to l?
* # tt tt -x tt tt tt
PLAN NO. l ...,. Magnetic Survey data on WesternClaim Group. I so -dynamic contours of vertical magnetic intensities* (Drawing Ref. No. 5l-ll-#j.)
PLAN NO. 2 . .... Magnetic Survey data on EasternClaim Group. I so-dynamic contours of vertical magretic intensities. (Drawing Ref. No. 52-11-51+)
•li- tt tt X X X X tt
GEO - TECHNICAL DEVELOP M EN T C .O M f A NY .L l M 4 T*. D.
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The Directors,Caral Mining Company Limited, 'Room 3Q1, l King Street''West,' \^^4^'^--^:: '-'-:-^ TORONTO, Ontario,
Gentlemen:
The following repbrt
surveys conducted over two
Company and located about
Marathon, Port Arthur Mining ]
amount of electrical resistiviljy;;'6il(
out in conjunction ^i^h tlie ̂
surveys were conducted
during the period September t
the result s are depld1bed'.'t)n,.F^ai^]^s^:'; :^
this report,
Summary and Recommendations
Due to the encoUragiJigj|^
•"^r
Several mining companies have
exploring known base metal occu
and in the vicinity of Bamoos g
The two groups of
Company Limited and discussed in 1|'
B e o - TECHNICAL D E V E L O P .JMJI *|T,
.. - 1 ' -.-: ' ' ;-ftli^'
The West Group is located in Township 79 'and'the' "E'fit'Ssfi' "Grbup ; ";' : ' ! ' ;r
in unsurveyed territory immediately to the east. These
claims are further described as follows:
GROUP
Claim Nos. T. B. ^06l to 5^08? inclusive - 2? claims
EAST GROUP
Claim Nos. T. Bo 5503^ to 55060 inclusive - 2? claims
Lo c a t ion m and ̂ A c c e s s
The properties described in this report are located
approximately sixteen mi!b s northwest of the Town of Marathon,
which in turn is located on the north shore of Lake Superior
and 3 s a regular stop on the main line of the Canadian
Pacific Railroad. The most direct means of access to the
claims groups is by helicopter and Kenting Aviation Company
bases helicopters at Marathon for servicing the immediate
area. An alternate route is via Highway 17 west from
Marathon to Neys and then north over a road maintained by
the Ontario Paper Company to a point on the Little Pic
River approximately five miles north of Highway 17o About
four miles farther upstream a trail extends east from the
Little Pic River to the camp on the West Claims Group. The
distance from the Little Pic River to this camp is approx
imately three and one-half miles.
Topography
The topography of the general area is typical of
the Lake Superior north shore region and is characterized
G E O -TECHNICAL DEVELOPMENT COMPANY LIMITED
- 5 .
by quite rugged relief. Some of the hills 6n the claims
Croups r:'se to elevations of five hundred feet above the
surrounding terrain. Most of the area is very heavily
timbered but there are sufficient rock exposures to permit
fairly detailed geological mapping. The entire area is
dotted with numerous small lakes and ponds connected by
a network of small streams and creeks.
General Geology
No detailed geological information has been
published covering this immediate area. Map No. Ij-lj,
Heron Bay-White Lake Area sheet, published by the Ontario
Department of Mines in 1932, shows the geology of the area
adjoining to the east in considerable detail. There is a
gap of eight townships between this map sheet and the
Schreiber Sheet, also published by the Ontario Department
of Mines.
Geological reconnaissance work was carried out by
Geo-'I'echnical Development Company Limited over the two
groups of claims described in this report. Considerable
geological information was acquired on the West Group, but
the lateness of the season only permitted an examination
of the rocks along the base line on the East Group*
Basic volcanics and what are believed to be
recrystallized arkosic sediments appear to be the oldest
rock types on the West Claims Group. These rocks have been
intruded by gabbro which is the most predominant formation
outcropping on this property. Red and pink syenite was
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
- 6 -
observed to cut all three above mentioned formations*
The volcanic rocks consisting largely of '
basalt flows predominate in the extreme northeast corner
of the West Claims Group, They are for the most part
quite magnetic and in places contain considerable finely
disseminated magnetite*
A rock type, believed to be recrystallized arkosic
sediments, contacts the basalt lavas on the West and under
lies most of the area north of the base line between lines
8-fOO E and 16*00 W. In places this rock is quite well banded
and somewhat gneissic. Although highly altered .and re
crystallized, there is still evidence of grain gradation
and much of vdiat appears to be gneissic banding probably
represents original bedding. This rock is largely composed
of feldspathic material with some quartz and minor ferro-
magnesium minerals.
The gabbroic rocks, by far the most extensive
formations outcropping on the West Claims Group, vary from
very coarse-grained almost pegmatitic gabbro to a medium-
grained diabasic type. This gabbro, especially the coarse-
grained variety, contains a considerable amount of coarse
magnetite and locally was sometimes found to contain over
fjO/'o magnetite. Where the gabbro is coarse-grained and
contains a high percentage of magnetite, the surface of the
rock is usually highly weathered and decomposed.
The finer-grained diabasic type is usually quite
fresh looking and In places suggests two periods of gabbro
intrusion. However, no actual contacts between the fine and
B E O - T E C H N l C A t DEVELOPMENT COMPANY LIMITED
coarse-grained types were observed so it cannot be
definitely assumed that this condition is true.
Where there are no heavy concentrations of
magnetite, the coarse-grained gabbro is quite normal in
appearance and varies from low feldspar, high pyroxene
to almost pure anorthosite*
The gabbro formations underlie the south half
as well as the west portion of the West Claims group*
vScattered outcrops of this rock were also observed along
the north boundary suggesting small dikes of this formation
cut the basic volcanics and recrystallized arkosic sediments,.
Contacts between the gabbro and basalt lava were observed
along the base line east from line 8-rOO E to line 20-rOO E.
An outcrop of arkosic sediments 800' north md about 50'
east on line 21+00 W includes dikelets of gabbro indicating
the gabbro to be later than the recrystallized sediments*
This condition is also evident in numerous outcrops on
line 28+00 W north of the base line. The contact between
the sediments ar. d gabbro intrusive probably occurs in the
vicinity of this line as there is considerable contamination
of the sediments by the gabbro in this area,
Red and pink syenite, for the most part quite
coarse-grained, was observed to cut all three above
mentioned rock types* Although this syenite predominates
in the area north of the base line between lines 2i(.*00 W
and 16+00 W, isolated occurrences probably representing
dikes wore observed throughout the claims group.
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
\ - . . -. '.' v ..^ : *; - r, 1 , 11 .' 1 '-', 4* *.v * y* 1 " ..'--.^ n-T'.:f*f-v,3.^v- av-,. v :- * * vrf VV'--VA --' - 1 .! f/v-*''v". J' i ! ' ta' 'fi v'i ' ?;v ' :- -^V* l- : - -''" : ; i 1-^^^V'^s^v^^^r^^ v^;^:J:j
. At . . , .At a point
fifteen foot red
well exposed in a re
and dips vertical."
at 16?5 feet south on line
south. These two outcrops
striking in a northeast ;i
south on line 2lj*,pO W,
red syenite is exposed in a
:wera observed as no outerops^;w||eg^p||||i^
^•^^^^M^iK^ii^i^^^^^mmm•- 'A W'*{j-^ *!.' '/-.'.'r i 'j
., .,...... ........... .. ,...iWl!Mllsize which possibly follows ^^
immediately south of the
Numerous outcrops bf
near the base line iri the vioijllS
211+00 W. Syenite is also
as far as the north tie line*''
suggest adike several hundred
to northeast direction
arkosic sediments. A large
cutting the arkosic
1^+00 W.
Dikelets and
in the gabbro indicate the
Q E O
- 9 -
An indication of intrusive action later than the
syenite was observed lj.0 feet east of 12*00 N on line 20+00 W
where a lamprophyre dike, several feet wide and showing a
perfect chilled contact, cuts the syenite.
Adverse weather conditions prevented a geological
reconnaissance survey over the entire East Group. However,
a traverse was made along the base line and this part of the
claims group was found to be largely underlain by sedimentary
formations with considerable basic and siliceous lavas
especially in the area between lines 21^00 E and 32*00 E.
Both the volcanic and sedimentary rocks have been intruded
by coarse-grained gabbro similar to that found in the West
Group as well as by minor aplite and lamprophyre dikes. It
is possible that the aplite dikes are related to the syenite
intrusive which is quite prevalent in the area of the West
Claims Group 0 The gabbro observed on the East Group also
contains a considerable amount of disseminated magnetite.
G ene ral Di s cu s s i on
Formerly there has been very little prospecting
activity in the area in which the claims groups discussed in
this report is located. However, the development of the
Manitouwadge area situated about forty miles to the no? theast
has attracted considerable attention to the general area aid
the known mineral occurrences have been staked and many are
presently being explored by diamond drilling arid geophysical
methods.
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
- 10 ~
The Pic River area located about eight miles to
the southeast of the Caral Mining Company Limited claims
and where sulphide occurrences have been known for several
years is presently being actively explored. This activity
has attracted considerable mining interest and claims have
now been staked within a radius of several miles and include
the area where the Garal Mining Company Limited groups are
located.
The chief mineralized showing observed on the
claims groups discussed herein is massive magnetite occurring
in well-weathered, coarse-grained gabbro. This showing is
located at the north end of the "A" anomaly on the West
Group and immediately south of the small lake. Trenching
alone the foot of a steep hill at this point has exposed
a seam of almost massive magnetite about three feet wide
carrying a small amount of pyrite and chalcopyrite. A
sample of this material is reported to have assayed i}.?.67^
iron, Q .Qltft copper and 6.9l|-/^ titanium,, A second and somewhat
similar showing has been trenched about 600 feet to the
northitfest just south of the base line and about midway
between lines 00+00 and 1^+00 IV. Other magnetite occur
rences were observed during the geological examination
conducted by Geo-Technical Development Company Limited. One
of these is located about 75 feet north of the base line at
15*00 W and another 21^30 feet south on line 12+00 W.
Heavy pyrite mineralization was observed near the
contact of the syenite and gabbro a few feet north of the base
line at 25+00 W. At this point a limited amount of stripping
ED - T E C H N l C A t D E V E t O P M E N T C O M P A N V U l M l ,T E,D
- 11 -
exposed pyrite gossan over a width of three feeto The
outcrop dips under a deep draw and it was not possible to
determine the limits of the pyrite mineralization by surface
stripping. Pyrite mineralization was also observed immedi
ately west of 1^*00 N on line 8*00 E e At this point the
mineralization occurs in a syenite or aplite dike which
contacts the recrystallized arkosic sediments.
Interpretation of the Geophysical Results
The results of the magnetometer survey and electrical
resistivity check work conducted over the West Claims Group
are depicted on Plan No* l accompanying this report. The
magnetometer readings, expressed in gammas, are shown to the
oast of the traverse lines and the resistivity readings,
expressed in ohm-centimeters x 10^, are shown to the west.
The magnetic readings over the entire claims group
are quite high suggesting the presence of appreciable
magnetite occurring as a constituent mineral in the under
lying formations. This condition is especially true over
the areas underlain by gabbro and basaltic lavas. Although
the arkosic sediments and syenite are much more magnetic
than might normally be expected, they stand out as magnetic
"lows" relative to the readings over the gabbro and basalt
rocks. Small isolated highs within the areas observed to
be underlain by the sediments and syenite probably
represent small dikes or fingers of the gabbro intrusions.
The areas over which very high positive as well as
high negative magnetometer-readings were obtained were
GEO- TECHNICAL DEVELOPMENT COMPANY LIMITED
- 12 -
examined in detail in an effort to determine the reason for
the high magnetic reaction* In all cases high percentages
of magnetite were observed in the underlying formations.
It was found that high negative magnetic readings were as
important as high positive magnetic readings as indications
of the presence of magnetite* The high negative readings
are apparently the result of di-polar effects.
The magnetite concentrations occurring on the
property appear to be small, lenticular masses confined to
fracture and shear zones. In the majority of magnetic
anomalies, such as the ones occurring near the south ends
of lines 20*00 W and 32400 W, where negative readings of
over 20,000 gammas were obtained, considerable magnetite
was observed but the mineralization is too finely dissemin
ated to constitute ore material. This same condition exists
1000 feet north on line 12*00 W and in the vicinity of the
base line at 2l|400 E.
The most significant anomalous zone outlined by
the magnetometer survey occurs south of the base line between
lines 1|-400 W aid 12+00 E, In this section the magnetometer
survey indicated a northwest-trending anomaly identified on
Plan No. l as the "A" anomaly and showing readings in excess
of 18,000 gammas. High negative readings were obtained
in this section indicating considerable di-polar effectso
The main showing observed on the property to date
is located near the northwest end of this anomaly. The topo
graphy in this section is rugged and cut by a series of deep
draws believed to represent fault or shear zones. The area
GEQ - TECHNICAL DEVELOPMENT COMPANY L, M, TED
~ 13 -
is underlain by highly magnetic gabbroic rocks and it is
quite possible that some of the assumed shear or fault
structures could provide favourable conditions for the
concentration of magnetite. The magnetometer results and
the geological examination suggest however that any magnetite
deposits in this section will occur as small lenticular
masses,.
From the geological investigation conducted in
conjunction with the geophysical work, it was found that
10 or 13/0 magnetite in the underlying formations could
produce high magnetic readings but would not necessarily
suggest the presence of ore material. This condition is-*"'
especially true where the concentration of magnetite is
confined to a small area. Several of these small anomalies,
often only indicated by one high magnetic reading, occur
throughout the surveyed area.
The electrical resistivity survey conducted over
the West Group was confined to limited areas in an effort to
provide further geophysical data to aid the interpretation
of the magnetometer results. A small amount of resistivity
work was conducted in the vicinity of line 23.j.tOO in an effort
to determine the extent of the sulphide mineralization
observed immediately north of the base line at 25rOO W.
The readings obtained in this section were for the most part
quite high and did not suggest any appreciable extent to
the observed sulphide mineralization. Similar conditions
were indicated in the vicinity of the sulphides observed at
llj.00 feet north on line 8+00 E.
BED - TECHNICAL DEVELOPMENT COMPANY LIMITED
The entire area south of the base line and lying
between line Ij.-tOO M and the east boundary of the claims
group was surveyed by the electric resistivity method. The
readings over- this section especially those in the vicinity
of the "A" anomaly located south of the lake, indicate
several local conducting trends interpreted as representing
shearing or faulting. The topography in this immediate
section is characterized by numerous deep ravines and gulleys
conforming to no particular strike but believed to represent
fax It or shear lineaments. In several cases highly weathered
and decomposed coarse gabbro carrying a high percentage of
magnetite was observed along the slopes of these depressions.
The presence of this highly weathered gabbro is further
evidence suggesting the presence of faulting or shearing.
No resistivity readings were observed that could bo con
sidered as indicative of heavy sulphide mineralization.
The results of the magnetometer survey conducted
over the Fiast Group are depicted on Plan No. 2 accompanying
this report. No resistivity surveying was carried out in
conjunction with the magnetic work over this group. The mag
netometer readings obtained over this claims group were for
the most part considerably lower than those obtained over
the West Group, although several small isolated anomalies
showing quite high readings were observed. These anomalies
are largely confined to one or two high readings such as the
ones observed at 1700 and 2000 feet south on line 16400 E,
Two high anomalies with a di-polar effect between them were
observed at the south end of line 1(41-00 E. A strong di-pole.'
BED- TECHNICAL D E V E L O P M E N T COMPANY LIMITED
- 15' -
was also observed at 2200 feet SDUth on line 52+00 E.
The geological reconnaissance work conducted along
the base line on this claims group indicated the underlying
rocks to be largely sediments Intercalated with basic to
acidic lavas. These formations have been intruded by gabbro
similar to that found on the West Claims Group. The presence
of magnetite as a constituent mineral in the gabbro could
have caused the high isolated anomalies mentioned above.
No magnetic anomalies were observed throughout this claim
group suggesting the presence of appreciable concentrations
of magnetite.
The wide difference in the magnetic properties of
the underlying rocks on the i^ast ClaimsG-roup in all proba
bility reflects the variation in the amount of magnetite
present. The magneti te content varies considerably with the
different rock types and even in the same rock there is often
a marked difference in the amount of this mineral present.
This latter condition often makes it very difficult to
establish geological contacts from magnetometer readings
unless considerable geological information is available.
Survey Data
Magnetometer surveys were conducted over two groups
of claims held by Caral Mining Company Limited and located
in the Port Arthur Mining Division, Ontario. The West Group
of claims i s located at the extreme northeast corner of
Township 79 and the ttast Group, one half mile to the east in
unsurveyed territory,, A small amount of resistivity work was
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
conducted with the magnetometer survey on the West Claims
Groupe Geological reconnaissance surveys were conducted
over both claims groups during the course of the geophysical
work.
All the above mentioned surveys were conducted by
Goo-Technical Development Company Limited during the period
from September 8th, 19^1- to November Jj.th, 195^ and the
results are shown on Plans No. l and 2 accompanying this
report. Plan No. l shows the results of work conducted over
the West Claims Group and Plan No. 2 the work over the East
Group. Both claims groups include twenty-seven claims each,
comprising approximately 1080 acres in each group.
An east-west base line established through the
West Claims Group was extended across the iiast Group.
Traverse lines were turned off this base line at ij.00 foot
Intervals. Magnetometer readings were taken at 100 foot
intervals along these north-south traverse lines. These
readings expressed in gammas are plotted to the east of the
traverse lines on the accompanying plans. Where electrical
resistivity surveying was carried out the readings were taken
at 50 foot intervals and,expressed in ohm-centimeter s x 10^,
are plotted to the west of the traverse lines.
On the West Claims Group 20.72 miles of line were
surveyed by the magnetometer method and )|..^9 miles by the
resistivity method. The magnetometer work required 10^!|
station readings and the resistivity work l \.Q^ station
readings. On the East Claims Group 19.39 miles of line were
surveyed by the magnetometer method requiring lOOlj. station
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
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M)|1 T.6. l T. 6. j l-B. l T.B.I T.&.I T.B ' T. B 55o8l i 5508*1 55081 l SSog* l 55oa5 t 55o8fc l bSot?
5505 ' lBSoflo l SSoTt) l 550 G7
AREA l SURVEYED r SSo-ll l 55018 l SS068 l SSotrfi l 55061 l Biota C PLAN^NO.
E'.OAO
ssoisl 55014 l 55oll l 55*12.1 SB OH ^
55050 HEAD OF THE LAKES IRON
STAKED A R C-A
LOCATION MAPSCALE l"s 1/2 M l LE
LEGEND
MAGNETIC CONTROL STATION
LINES CUT AND CHAINED MAGNETIC READINGS OBSERVED
MAGNETIC CONTOUR
OUTCROP
SWAMP AREA
55048
WULLIE\ Cd
r, 5 5 O 5 2 :- 18"'/,,
— — — — — — —— ftjje,i. //,,
LEGEND
O -
5000 -
io"obo -
o -
2000 -
3000 -
5000 -
10000 -
5000 GAMMA
10000
20000
2000
3000
5000
IOOOO
UP
42016^0026 63.550 MARTINET LAKE 210
MAGNETIC SURVEY DATA ON EASTERN CLAIM GROUP OF PROPERTY OF
CARAL MINING COMPANY LIMITEDl SO DYNAMIC CONTOURS OF VERTICAL MAGNETIC INTENSfTIES
TOWNSHIP - 79
DISTRICT OF THUNDER - BAY
ONTARIO
MAGNETIC SURVEY BY
GEO-TECHNICAL DEVELOPMENT COMPANY LIMITEDPLAN -NO.- 2 OCT.- 1954
SCALE: r 1 - 200'Gee Sec'
—l
LEGEND
SEDIME NTS
GABBRO
*| BASALT L AVA
APLITE- D YKE
R HYOLITE
J LAMPROPHYRE D YKE
LEGEND
MAGNETIC BASE: CONTROL STATION
LINES CUT AND CHAINED MAGNETIC READINGS OBSERVED
MAGNETIC CONTOUR
READINGS PLOTTED ON WEST SIDE OF LINE GRID
RESISTIVITY CONTOUR
GEOLOGICAL CONTACT INFERRED AND OBSERVED
B ' T.fc i T. 6T-6 T. os Tft T.& 55081
SURVEYED
C PLAN NO.2
550351 55034.;FAULT OR SHEAR
OUTCROP
SWAMP AREA
t J J '^ if * * * *1 1** f f * * f .
HEADS OF THE IRON
5TAK ED AREA
LOCATION MAPSCALE : l"- 1/2: Ml LE
55085
55084
55082 65083BEAVER
POND
55081
55065
^ h if-15. — —
5506655067
—. 55080
— J^*
— f O* - 2*21 - ~
55078
55075
55076
5000 GAMMA
BEAVER^Y POND
UP GEO-T
42D16N*0026 63.55C MARTINET LAKEl
320
LEGEND
MAGNETIC BASE CONTROL STATION
LINE5 CUT AND CHAINED M AGNETIC R EADINGS OBSERVED
MAGNETIC CONTOUR
WfSMfTWtTY READINGS PLOTTED ON WEST SIDE OF LfNE GRID
RESISTIVITY CONTOUR
GEOLOGICAL CONTACT INFERRED AND OBSERVED
FAULT OR SHEAR
55046 S504*}T. B T B T.&
SS062' S5ofl3 l 55084 1 55o85 l BSo&l. !
SURVEYED
AREA i SURVEYED
C PLAN i NO. IX' ~T
5503C l 65015
OF THE LAKES IRON
OUTCROP
SWAMP AREA
STAKE D AREA
LOCATION MAPSCALE l"- 1/2 MILE
55084
55O83BEAVER
POND
55081
55065 l0 1- , --^
5506655067
B A S\E
55080
x^*tLT^
55078 55068
55077
.
55073
5507555074
55076
BEAVER POND
MAGNET
CARAL
O - 5000 GAMMA
5000 - 10 000
10000 - 20000
O - 2000
2000 - 3000
3000 - 5000
J 5000 - i0000
10000 - UP GEO-TE
42DI6N#e026 63.550 MARTINET LAKE
230
ra •j* Q
TO
WN
SH
IPT
OW
NS
HIP
NO
RT
H
CM
AG
NE
TIC
40.
W
O m O i
r
n
o
rn z o
rn
LEGEND55o5l i 55051;
MAGNETIC BASE CONTROL -STATION
LINES CUT AND CHAINED MAGNETIC READINGS OBSERVED
MAGNETIC CONTOUR
MMTtVtTY R EADINGS PLOTTED ON WEST SIDE OF LINE GRID
RESISTIVITY CONTOUR
GEOLOGICAL CONTACT INFERRED AND OBSERVED
FAULT OR SHEAR
ARKOSE C RECRYSTALLIZED SEDIMENTSSORtVEYED
C PLA^ NO.2])
55040
'55030 l 550151 5&034,BASALT LAVA
HEADS OF THE LAKES l RON
OUTCROP
SWAMP AREA
STAKE D AREA
55086
55085
55084
•^55083
55063
|9fo
55064
GABB55065
S——C ft
5506655067 ~--^~ ~- —
B A S\E. --
5507
rf—^**C- -13 M 7 *^J./*3Xoo J- ^ -. - LSaac A ^7i
55062
55068
55071
LEGEND
O - 1 00 O HM - CM x 10
100 - 200
200 - 500
500 - !000
1000 - 20OO
2000 - UP
5072
55074
CARALMAGNETIC SURVEY DATA ON WESTERN CLAIM GROUP OF PROPERTY OF
MINING COMPANY LIMITEISO-DYNAMIC CONTOURS OF VERTICAL MAGNETIC INTENSITIES
AND IN PART ELECTRICAL RESISITIVITY SURVEY DATA AND GEOLOGY
"rf lTOWNSHIP - 79
DISTRICT OF THUNDER- BAY
ONTARIO
GEOPHYSICAL AND GEOLOGICAL SURVEY BY ;
GEO-TECHNICAL DEVELOPMENT COMPANY LIMITEDPLAN NO- OCT. - 1954
SCALE: T- 200'200 loo' So' Apo Soo 800' tcoo
LEGEND55o5l l 55051-,
MAGNETIC BASE CONTROL STATION
LINES CUT AND CHAINED MAGNETIC READINGS OBSERVED
MAGNETIC CONTOUR
READINGS PLOTTED ON WEST SIDE OF LINE GRID
RESISTIVITY CONTOUR
GEOLOGICAL CONTACT INFERRED AND OBSERVED
FAULT OR SHEAR
C RECRYSTALLIZED SEDIMENTSSUREYED
PLAty N0.2
55040
'5503C, 55015! 5&OJ4-, BASALT LAVA
HEADS OF THE LAKES IRON
OUTCROP
SWAMP AREA
5TAK ED AREA
55086
55085
55084
)5082 55083
55063,
55064
, GABBRO55065
5506655067
55062
55071
-~~ C. —"
y*o ~ -^rr^^ "^ —- ZT-^-....-. *i*l ^fc^- ^* —*.
5072 J 0-100 OHM - CM X 10
100 - 200
55073
55074
J 200 - 500
500 - 1000
1000 - 20OO
2000 - UP
MAGNETIC SURVEY DATA ON WESTERN CLAIM GROUP OF PROPERTY OF
CARAL MINING COMPANY LIMITEDISO-DYNAMIC CONTOURS OF VERTICAL MAGNETIC INTENSITIES
N PART ELECTRICAL RESISITIVITY SURVEY DATA AND GEOLOGYAN D
0
5000
IOOOO
0 .
2000
3000
5000
IOOOO
5000
- IOOOO
- 20000
2000
3000
5000
- IOOOO
UP
TOWNSHIP - 79
DISTRICT OF THUNDER-BAY
ONTARIO
GEOPHYSICAL AMD GEOLOGICAL SURVEY BY
GEO-TECHNICAL DEVELOPMENT COMPANY LIMITEDPLAN NO- OCT. - 1954
SCALE: i"- 200'So' toe' So' T ill
2 oo800'
lODO
SI -1 I-S4
LEGEND
f r i i w - t r i f * f T r r M ir r
55o5^i 55 058- MAGNETIC BASE CONTROL STATION
LINES CUT AND CHAINED M AGNETIC R EADINGS OBSERVED
MAGNETIC CONTOUR
MSWtTJVtTY READINGS PLOTTED ON WEST SIDE OF LINE GRID
RESISTIVITY C ONTOUR
GEOLOGICAL CONTACT INFERRED AND OBSERVED
FAULT OR SHEAR
55048 l 5504*1
ARKOSE C RfcCRYSTALLIZED SEDIMENTS 3
BASALT LAVA
HEADS OF THE LAKES IRON
OUTCROP
SWAMP AREA
STAKE D AREA
55087
55086
55085
55084
55082
55063,^* ~'
55064
GABB55065
5506655067 \ . - -4--^-
B A S\E
^755070-
e^~-55062
'
5506855071
55074MAGNETIC SURV
CARALEY DATA ON WESTERN CLAIM GROUP OF PROPERTY OF
MINING COMPANY LIMITEDISO-DYNAMIC CONTOURS OF VERTICAL MAGNETIC INTENSITIES
AND IN PART ELECTRICAL RESISITIVITY SURVEY DATA AND GEOLOGY. l --—j
TOWNSHIP - 79
DISTRICT O F THUNDER- BAY
ONTARIO
GEOPHYSICAL AND GEOLOGICAL SURVEY BY :
UP GEO-TECHNICAL DEVELOPMENT COMPANY LIMITEDPLAN NO-l OCT. - 1954
SCALE: T'- 200'toco