REPORT OF GEOLOGICAL AND SCINTILLOMETER SURVEY X ON ... · report "a" 31d16sew46 63a.228 anstruther...

X ? A

31D16SE8*46 63A.228 ANSTRUTHER 010

REPORT OF

GEOLOGICAL AND SCINTILLOMETER SURVEY

ON NORTH GROUP "A" ZONE X"'X

ON PROPERTY OF

NEWKIRK MINING CORPORATIOXLIMITED

ANSTRUTHER TOWNSHIP

PETERBOROUGH COUNTY

^.-ONTARIO

Prepared by:

M. E. Greaves , Geologist for:

Geo-Technical Development Company Limited 24 Wellington Street West Toronto, Ontario.

OCO-TCCHNICAL DEVELOPMENT COMPANY LIMITED

Newkirk Mining Corporation Limited, 100 Adelaide Street West, Suite 1601, Toronto, Ontario.

Gentlemen:

This report describes the results of a geological

and scintillometer survey conducted on part of your property

known as the North Group "A" Zone, located in Anstruther

Township, Peterborough County, Ontario.

The work was carried out by Geo-Technical

Development Company Limited, during the period from June 23

to August 5, 1955. The results of the surveys are shown on

Plans No's. l -A and 2-A, and l -B and 2-B accompanying this

report.

PROPERTY, LOCATION AND ACCESS

The claims covered in this report consist of the

following:

EO. 8783/8784, 8785, 8786, 8787; 8791, 8792, 8793,

8794, 8795, 8796; 8828, 8829, 8830, 8831, 8832,

8833, 8834, 8835, 8836, 8837, 8838, 8839; 8840,; '

8841, 8842, 8843, 8845, 8846, 8847, 8848; 8850,

885lT 8852^8^54; 8855, 8856, 8857, 8858, 8859;

8860, 8861, 8867, 8868, 8869. -?^7C '77 .

3 3 clwv. ett*L* f**-

BED-TECHNICAL DEVELOPMENT COMPANY L IMITED

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These claims are situated about 3 miles north

of the Town of Apsley , approximately 1-1/2 miles west of

Highway No. 28, in Anstruther Township, Peterborough County ,

Ontario. This block of claims adjoins the property of El Sol

Mines to the north, and Avillabona Mines and Brunsman Mines

to the south.

The property is reached via Highway No. 28 and

a dirt road which runs west from Highway No. 28, about 3 miles

north of Apsley to the southeast corner of Claim 8843. This

road continues on across the northern portion of the claim group,

but is passable only by jeep.

TOPOGRAPHY

For the most part, the property is flat,with heavy

forest growth and little rock exposure. To the north and west,

the elevation rises gently,to give a maximum relief in the area

of about 100 feet.

Drainage is to the southwest. Darning by beavers

has converted the streams into a network of marshes and flooded

areas. The area is wooded mostly with poplar , birch and spruce,

with some red and white pine to the north. Thick alder growth

occurs in the low swampy areas.

GEO-TECHNICAL DEVELOPMENT COMPANY LIMITED

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GENERAL GEOLOGY

The area is underlain by rock of Pre-Cambrian

Age, which consists of pegmatite , granite, granite-gneiss ,

hornblende-gneiss, biotite rock and metamorphosed limestone.

The granite-gneiss and hornblende-gneiss are believed to be

meta-sedimentary, and have been formed by the processes of

granitization. All gradations occur between the two types.

Most of the granite represents an advanced stage of granitiza

tion of the granite-gneiss. The pegmatite is the youngest

rock type, and occurs throughout the area as irregular-shaped

sills , dykes and masses injected into the older rock formations.

The regional strike of the gneissosity in the v

area is about N. 30O E. with flat dips to the south (30O -50O).

ROCK DESCRIPTIONS;

Pegmatite

The pegmatite is generally light to medium pink

in colour, and varies from medium to coarse grained.

It is composed chiefly of potash feldspar and quartz,

with few mafic minerals , the most common being biotite.

Magnetite and black tourmaline are common accessory

minerals.

BED-TECHNICAL DEVELOPMENT COMPANY LIMITED

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The pegmatite is the youngest rock type in

the area, and occurs mostly as irregular-shaped

lenticular masses injected into the older rocks.

Although irregular in shape, the pegmatite

masses appear, in general, to conform with the

foliation of the country rock.

The radio-activity outlined by the scintil

lometer survey appears to be restricted to the masses

of pegmatite. Grab sampling of some of the higher

radio-active areas gave one assay of . ll^o UjC^

(chemical) from an outcrop located in the northeast

corner of Claim 8832. Other assays gave negligible

results.

Granite

The granite is generally medium-pink in colour,

fine to medium grained, and is composed of feldspar,

quartz and biotite. Locally , the granite contains

scattered metacrysts of feldspar {up to l inch in diam

eter). The granite frequently displays a rough banding

which corresponds to the gneissosity of the other rock

types. It is believed that the granite has been largely

formed by the process of granitization.


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Granite-Gneiss

The granite- gneiss is a light coloured, fine

to medium grained, banded rock that is granitic in

composition. The bands contain varying amounts

of dark minerals, usually biotite.

Hornblende -Gneiss

The hornblende-gneiss is a dark coloured,

fine-grained, banded rock that contains more than

30^o hornblende with white feldspar and quartz. It

is usually more granular than the granite- gneis s ,

but all gradations between the two are found.

Biotite Rock

The biotite rock is restricted to the southeast

corner of Claim 8840 , the southwest corner of

Claim 8841 , and the northern portion of Claim 8851.

It is a massive, coarse-grained, dark coloured rock

that is composed mostly of biotite with hornblende

and white feldspar .

Metamorphosed Limestone

A few remnant outcrops of metamorphosed

limestone occur in the northern part of Claim 8848.


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Bands of metamorphosed limestone cut across

Claims 8876, 8868, 8869 and 8877. The lime

stone is generally white, medium-grained, and

consists principally of calcite. Locally, calcium

silicates such as diopside and trenolite constitute

a high percentage of the rock. Biotite is often

found as fine, disseminated flakes.

GROUND SCINTILLOMETER SURVEY

A detailed ground scintillometer survey was

carried out in conjunction with the geological mapping over

the property.

Numerous radioactive zones were outlined by\

the scintillometer survey. These were found to occur directly

over , or in the near vicinity of, pegmatite.

The most promising zone occurs across the

middle of Claim 8851, and continues with a gap of 400 feet

across the northwest corner of Claim 8852 and into Claim 8841.

This zone covers a length of 2,600 feet, with readings up to

.065 MR/hr.

RECOMMENDATIONS

It is recommended that this zone should be

further investigated by diamond drilling.

OEO-TECHNICAL DEVELOPMENT COMPANY LIMITED

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A second radio-active zone of importance cuts

across the northeast corner of Claim 8832 and the southeast

corner of Claim 8795 for a distance of 500 feet. Two selected

samples were taken from this zone, which assayed .11 and

.014 percent UJ3o.

SUMMARY AND CONCLUSIONS

The results of the surveys indicate two favour

able zones that are recommended for testing by diamond drilling:

(1) The most promising radio-active zone occurs

across the middle of Claim 8851, and continues with

a gap of 400 feet across the northwest corner of

Claim 8852 and into Claim 8841. This zone covers a

length of 2,600 feet, with readings up to .065 MR/hr.

(2) A second radio-active zone of importance cuts

across the northeast corner of Claim 8832 and the south-

east corner of Claim 8795, for a distance of 1,500 feet.

Two selected samples taken from this area assayed

.ll^o and .014^0 UjOg (chemical).

INSTRUMENT DATA

The instrument used for recording radio-activity

was a "Portable Scintillator Counter" , Model in, with ranges

of .025, .05, .25, .5, 2.5 and 5.0 milliroentgens per hour.

OCO-TECHNICAL DEVELOPMENT COMPANY LIMITED

- 8 -

The instrument has an accuracy of 5% of three-quarters full

scale. Standard procedure was to calibrate the instrument

with a standard radio-active chip of 0.19 milliroentgens per

hour. Check readings were made several times each day,

to determine possible changes in the instrument during the

traverse run. This check also served to establish a back

ground count for the area being surveyed.

SURVEY DATA

Geological mapping and a scintillometer survey

were carried out on your property located in Anstruther Town

ship, Peterborough County, Ontario.

The work was conducted by Geo-Technical

Development Company Limited during the period from June 23

to August B, 1955, and the reiulU are shown on the accompany

ing Plans No's. 1-A and 2-A, and 1-B and 2-B.

A total of 57.5 miles of picket lines and base-~M~~ , -—-J—|...Lam .-.•^miKr-iji.m-ir r UIIKH* rf- 1-""**"*"*"''"*''""——"—" V ' "*'

lines were cut and chained for the survey operation.- . -nlliHIIIIIIIIIII"——"^**

A total of 56. 5 miles was traversed by the ground

scintillometer survey, requiring 5,966 readings, and 56.5 miles

of line were geologically mapped.


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TOTAL MAN DAYS REPORTED

GEOPHYSICAL SURVEY (SCINTILLOMETER)

Instrument Operators and Assistants - 3 8 days x 4 *' 152 Draughting z 8 days x 4 ^ ___ 32

TOTAL * 184 days

GEOLOGICAL MAPPING

Line Cutting sJj)3Ldays x 4 * 672. ..- Adjusted * 664 daysMapping ~ 9 4 days x 4 * 376Draughting and Colourings 52 days x 4 s 208Consulting s 6 days x 4 s 24Preparation of Report - 8 days x 4 - 32

MO-daye

- (6*0r^T TOTAL 1,304 days

{ 4 5 claims included in this group (See attached list), v .-'-^.-

Therefore

Total Number of Days desired by Scintillometer "*""?Survey K 184 B 4 days per claim 3' ?

45 ———————————— ^jtA*

14?*Total Number of JDays desired by Geological

Survey s i, 304 * ^SliiilLLJSSL^iSiSi*. 14^2

Respectfully submitted,

GEO-TECHNICAL DEVELOPMENT COMPANY LIMITED.X"

X-y

M. E,. Greaves, Geologist forGeo-Technical Development Company Limited.

Toronto, Ontario,

November 11, 1955. MEG/rap

OEO-TECHNICAL DEVELOPMENT COMPANY LIMITED

REPORT "A"

31D16SEW46 63A.228 ANSTRUTHER 020

REPORT ON

GROUND SCINTILLATOR SURVEY

EASTERN EXTENSION OF "A" ZONE

PROPERTY OP

NEWKIRK MINING CORPORATION LIMITED

ANSTRUTHBR TOWNSHIP

PETERBOROUGH COUNTY

ONTARIO

Prepared byj

Herbert Parliment, B.So, P.Eng, GeologUt for

OBO-TECHNICAL DEVELOPMENT COMPANY LTD., 2l| WELLINGTON STREET WEST, TORONTO, ONTARIO.

DEO - TECHNICAL D E V E L D P M ENT COMPANY LIMITED , - ,, *

-,,

Newkirk Mining Corporation Limited, 100 Adelaide Street West, Toronto l, Ontario

Gentlement

This report describes the results of a ground

scintillator survey conducted over part of your property

in Anstruther Township, Peterborough County, Ontario and

referred to as the eastern extension of the Avillabona

Mines Limited property.

The survey was conducted by Oeo-Teohnioal Develop*

ment Company Limited during the period from April 28th to

August 22nd, 19f?i|* The results are shown on Plans Nos. l

and 2 accompanying this report.

Summary and Recommendations

High scintillator readings were obtained on the

"A" base line between Lines 82E to 86E and 128B to 132EJ

from Line 38E at 2^0 feet south to Line U2E at J?0 to 200

feet south; on Line l|2E at 900 to 1000 feet north; on

Line 20B at 50 t o 300 feet north and Line 12S at 150 to 800

feet north.

Trenching, to be followed by sampling, at the

above locations is recommended*

Property,Location

The property is located northeast of the Avillabona

Mines Limited property*

BCD -TECHNICAL D EVELOPMENT COMPANY LIMITED

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The part of the area surveyed consisted of part

of claim* E.G. 8653* Q8W4-* 9239 and 921+0, i| miles of base

line and a half mile line west from Oopper Creek Camp*

The claims are situated about 5 miles northeast

of Apsley, Ontario on Highway 28,

Access

The eastern part of the property Is readily

accessible from Highway 28, The western part can be reached

by canoe from the Hall's Bridge-(Jo o de r ham Highway via

Misslssagan Lake* Ooid Lake and Anstruther Lake, Poring

the fall and winter months it can be reached by wagon road

north from Apsley, Ontario to Copper Lake, It is also

aooessible by the use of pontoon-equipped aircraft which osm

land on Anstruther Lake.

Topography

The topography consists mainly of northeasterly

trending ridges of generally bare rock outcrop, the highest

of which rise about 250 feet above the level of Anstruther

Lake* Vertical scarps and high oliffs often form the west,

east and north limits of these ridges, this being controlled

by the jointing in the rooks* The ridges usually slope gently

to the south where they have been eroded in a direction parallel

to the foliation of the rooks. Bast of line l|i|.400 B outcrops

are few and the ground is low and swampy*

The ridges are wooded with intermittent patches of

small second growth oak, maple and birch. The swampy areas

and valleys are usually forested with spruce, cedar, alders,

poplar and occasional birch, ash, pine and tamarack. Marsh

BED -TECHNICAL DEVELOPMENT COMPANY LIMITED

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areas formed by numerous beaver dams in the area are usually devoid of trees.

The soil is mainly sandy and overburden is very shallow*

general Geology

The rooks of the area consist of granite, granite gneiss, pegmatite and hybrid gneisses of igneous and sedimentary origin* These are all of Pre-Cambrian age* At some distance away the area is almost completely surrounded by paragnelss and Pre-Cambrian limestone and dolomite* Strong granitization and pronounced pegmatitic injection occurs in the area mapped*

The pegmatite is pink in color* usually occurring as a lit-par-lit injection in the granite gneiss and also as large and small sills, dykes and plugs cutting all rock types found in this zone* It usually contains over 75 P*? cent pink feldspar* under 25 per cent colourless quarts and less than 5 per cent biotite mica. The amount of quarts and biotite may increase considerably in small dykes.

The granite gneiss is a well-banded fine to medium grained rook ranging from light grey to pink in colour* All the gneisses found In this zone are probably all hybrid gneiss originating from paragneiss through granitization and the injection of pegmatite. Small pegmatite dykes, sills and plugs are usually found cutting this granite gneiss.

The granite and pegmatitic granite varies from pink to light grey In colour, the pink being more abundant. They occasionally contain graphic intergrowth* of quartz and feldspar* Banding is common and the banded varieties sometimes grade into

B C O - TECHNICAL O EVELOPMENT COMPANY LIMITED

well-banded granite gneiss which shows no indication of an orthogneisa. Small bodies of pegmatitic granite sometimes occur where a pegmatite cuts banded granite. It appears that the granite and pegmatitic granite in this area originate from strong granitization of paragneiss with or without injection of pegmatite.

Hornblende-biotite-gneiss and oarbonate-biotlte-hornblende- gneiss are paragneisses or sedimentary gneisses usually well banded. Their oolour ranges from dark grey of hornblende- blotite-gnelss to light grey of oarbonate-biotite-hornblende- gneiss. Narrow, granitlzed lenses of grey paragneiss occur in areas of pegmatite and pegmatitic granite* Carbonate- biotite-hornblende-gneiss is rather rare in the area. The gneisses are often intruded by small sills or dykes of pegmatite. No true schists or reor^ystallieed limestone and dolomite have been found on the property.

Structural Qeology

The area mapped lies within a homocline which is interrupted in places by large and small injections of pegmatite.

The gneissosity usually strikes northeast about parallel to the "A" base line and dips from 180 to \tff* southeast. Local variations of strike and dip of gneissosity occur between two intersecting pegmatite bodies, inside large pegmatite bodies or at borders of cross-cutting pegmatites. Xenoliths of gneisses in pegmatite may have dips

B C O - T EC H H l C A L D EVELOPMENT COMPANY LIMITED

and strikes unconformable with the general structure of the

area. They are usually In small lenses up to about 7 x 15

feet in else, included in a much larger body of pegmatite.

Most of the pegmatite bodies conform in strike and dip with

their country rooks.

Some sets of joints are younger in age than all the

rocks of the area as they out across them all. Mo faults were

Identified positively during the mapping.

Soonomlo Qeoloqy

The radioactivity of the rook types in the area shows

that pegmatite dykes, sills and plugs are slightly nore active

than other types. However, in some places the radioactivity Is

as much as ten times greater than that of the surrounding rook

and these are usually located within a particular portion of

a pegmatite dyke or a granitlzed rock mass at the contact of

a pegmatite dyke and Its country rock.

Work Done

The "A" base line was extended across the property,

bearing N I|30 S parallel to the long axis of the airborne

scintillator anomaly, from 1200 feet E at the north boundary

of Avillabona Mines to 22t|00 feet 8 near the southeast corner

of El Sol Mines and Highway 28. Picket lines were out at right

angles to this base line and carried north and south to oover

the area outlined by the airborne scintillator anomaly* The

lines were out at two hundred foot intervals along the base

line. Scintillator readings were taken at 50 foot intervals

along the picket lines and base line. No cross lines were out


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east of line 1)400 E as this was the east end of the airborne

scintillator anomaly. The readings are expressed In

milliroentgens per hour and are plotted on accompanying

Plans l and 2.

In addition to the above a line was run at N 6?0 W

from the Copper Creek Camp*

A total of 10.9 miles of line were run In the survey.

Instrument pata

The instrument used for recording radioactivity was

a "Portable Scintillator Counter'' Model III with ranges of

,02^, *05* .2^* .5, 2.5 and 5.0 milliroentgens per hour. It

has an accuracy of f?# of three quarters full scale. Standard

procedure was to calibrate the instrument with a standard

radioactive chip of 0*19 milliroentgens per hour. Check readings

were made several times each day to determine possible changes

in the instrument during the traverse run. This check also

served to establish a background count for the area being

surveyed.

Interpretation

The ground scintillator survey did not show

a continuous radioactive zone as did the airborne survey* This

may be because of the flat dip (18-lj.O0 ) of the formations and

the lit-par-lit type of pegmatite intrusion which would cause

hidden pegmatitic occurrences to be effectively masked from

ground observation by overlying granite gneiss. In mapping

the adjacent property it was found that high radioactivity

GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED

-7-

ooourred within particular portions of pegmatite dykes or In granltized rock at the contact of pegmatite and granite gneiss. Also the samples analysed showed that the radioactivity was caused by the presence of thorium and uranium* Survey Data

(8 hour)Man 7 Days line catting and chaining 14j k \

,5eirxtiZl*t0r jmryey , 20 x liCalculation and interpretation 2 x l*Drafting 15 x kOffice typing and supervision 8 x l*

AttrlbiAs senn ent Work

Totals

tAble to

17* 6)

i l

t )' 9


QEO-TECHNICAL DEVELOPMENT 00. LTD.

Toronto, Ontario December 8,

Herbert Parliment* B.So. P.Eng.

SCO -TECHNICAL DEVELOPMENT COMPANY LIMITED

R E P O R T * B

. --..-..... .. •.••III! Ill Illl II l III Illl

31D16SE0046 63A.228 ANSTRUTHER 030

REPORT ON

GEOLOGICAL MAPPING

OP EASTERN EXTENSION OP WAM ZONE

PROPERTY OP

NEWKIRK MINING CORPORATION

ANSTRUTHER TOWNSHIP

PETERBOROUOH COUNTY

ONTARIO

Prepared by:

Herbert Parllment, B.So. P.Eng. Geologist for

GEO-TECHNICAL DEVELOPMENT COMPANY LTD., 2k WELLINGTON STREET WEST, TORONTO, ONTARIO.

O f O - T ECHNICAL D EVELOPMENTCOMPANY L l M l T E

Newkirk Mining Corporation, 100 Adelaide Street West, Toronto l, Ontario.

Gentlemen:

This report describes the results of geological

mapping on your property In Anstruther Township, Peterborough

County, Ontario.

The work was carried out by Qeo-Technical Development

Company, Limited and was done during the period from August 8th

to August 21, 19#|. The results are shown on the accompanying

plans*

The following conclusions were drawn from the mapping*

(1) The radioactive anomalies found in the area are related

to the occurrence of pegmatite - its radioactivity* mass

effect, etc.

(Z) Thorium and occasionally uranium but not radioactive

potassium are the main sources of radioactivity in the

pegmatite.

(3) The occurrence of uranium Is conclusive but rare.

(1|) Trenching and sampling is recommended at 12800 to 13200 B

and 8200 to 8600 E on or near the base line; across line

3800 E at 250 feet south of "A" base line, line 1+000 E

at lf?0 feet south of "A" base line and across points

where some of the higher scintillometer readings were

obtained on lines 1200 E and 2000 S.

Property, Location

The property lies to the northeast of Avillabona

Mines Ltd*

The part of the area mapped in detail consisted of

BCD -TECHNICAL DEVELOPMENT COMPANY LIMITED

.2-

part of claims E.G. 88^3* 88144, 9239 and 92ip, k miles of bate

line and a half mile line west from Copper OreeV Camp.

The claims are situated about 5 miles northeast of

Apsley, Ontario on Highway 28.

Access

the eastern part of the property is readily accessible

from Highway 28* The western part can be reached by canoe

from the Hall'a Brtdge-Ooodtrhew Highway via Missistagau Lake,

Ooid Lake and Anstruther Lake, IMring the fall and winter

months it can be reached by wagon road north from Apsley,

Ontario to Copper Lake. It is also accessible by the use of

pontoon-equipped aircraft which can land on Anstruther Lake.

Topography

Northeasterly trending ridges of generally bare rook

outcrop rising a maximum of 2^0 feet above the level of

Anstruther Lake are the principal features of the topography*

The ridges often have vertical scarps on the north, east or

west sides controlled by the Jointing in the rocks and usually

slope gently to the south where they have been eroded in a direc

tion parallel to the foliation of the rooks. To the east of lin*

ijlj. f 00 E the ground is low and swampy and outcrops ara few*

The area drains into Lake Ontario by a chain of lakes and creeks*

Irregular patches on the ridges are wooded by small

second growth oak, maple and birch up to about 10 feet in height*

The swamps and valleys are usually wooded with spruce, cedar,

alders and poplar with occasional birch, ash, pine and tamarack*

Marsh areas are usually devoid of trees.s


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Many small lakes are surrounded by wide rims of marsh

caused by numerous beaver dams in the area.

The soil is mainly sandy and overburden very shallow*

Previous Work

Previous to geological mapping, Ij. miles of base lint*

i mile east-west line and 6.{4. miles of cross lines were run at

intervals of 200 feet and a ground scintillator survey carried

out early in 1951|. Geological mapping was conducted by using

these lines as a base for the accompanying map. A total of

10*9 miles of line were mapped.

Oeneral geology

Former geological work done in the general area has

been reviewed and revised by J. Satterly in the 52nd Annual

Report of the Ontario Department of Mines* Vol. Lil* Part II,

19i|3* According to his geological map of the Haliburton area*

the property is located within a large area of granite,

granite gneiss, pegmatite and hybrid gneisses of igneous and

sedimentary origin* all of Pre-Cambrian age* At a distance

the area is almost completely surrounded by paragneiss and

Pra-Cambrian limestone and dolomite. Strong granitization

and pronounced pegmatitic injection occurs in the area mapped.

Rook Types

Pegmatite - The pegmatite is pink coloured

and generally occurs as a lit-par-lit injection in the granite

gneiss and also as large and small sills* dykes and plug* cutting

all rock types found in this zone.

BED -TECHNICAL DEVELOPMENT COMPANY LIMITED

The pegmatite usually contains over 7S# pink

feldspar, under 25# colourless quartz and less than *fa biotite

mica. The amount of quarts and biotite may Increase consider

ably in small dykes.

granite Qneiss - The granite gneiss Is well-

banded fine to medium grained ranging from light grey to pink

in colour* This and other varieties of gneisses found In

this 2 one are probably all hybrid gneiss originating from

paragnelss through granitization and the injection of

pegmatite. Small pegmatite dykes, sills and plugs are

usually found cutting this granite gneiss*

Oranite and Pegmatitic Oranite - These range from

light grey to pink in colour, the pink varieties being more

abundant* Occasionally they contain graphic intergrowth* of

quartz and feldspar. Banding is common and sometimes the

banded varieties grade into well-banded granite gneiss which

shows no indication of an orthogneiss* Small bodies of

pegmatitic granite sometimes occur where a pegmatite cuts

banded granite* It appears that the granite and pegmatitic

granite in this area originate from strong granitization of

paragnelss vith or without injection of pegmatite*

Hornblende-Biotite-aneiss and Oarbonate-Biotitft-

- These are paragneisses or sedimentary

gneisses i well banded with colours ranging from the

dark grey of the hornblende-blotite -gneiss to the light

grey of the carbonate-biotlte-hornblende-gneiss. Narrow lenses

BED "TECHNICAL D EVELOPMENT C OMPANY L IMITED

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of grey paragneiss, considerably granitlzed, are common in

areas of pegmatite and pegmatitic granite. Biotite-garnet-gneiss

and carbonate-biotite-hornblende-gneiss are rather rare* The

gneisses are often intruded by small sills or dykes of pegmatite.

No true schists or metamorphosed limestone and dolomite

without gneissic structure have been found on the property*

Structural Geology

The general structure of the area mapped is a homocline

whioh in places it interrupted by large and small injections

of pegmatite. This homocline may include several monoclines*

In general the gneissosity strikes about northeast nore

or less parallel to the MAM base line and dips from 180 to

southeast* Local variations of strike and dip of gneissosity

occur between two intersecting pegmatite bodies, inside large

pegmatite bodies or at borders of cross cutting pegmatites*

Xenoliths of gneisses in pegmatite may have dips and strike!

unconformable with the general structure of the area. These

Xenoliths are usually in the form of small lenses up to

7 x 15 feet In size, included in a much larger body of

pegmatite. The majority of pegmatite bodies are conformable

with their country rocks.

Some sets of Joints whioh have been noted out the

gneissosity of different gneisses as well as the pegmatite*

These are therefore younger than these rooks*

No faults were identified positively during the

mapping.


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ffcon^mio^Qe.ology

The radioactivity of the rook types in the area show*

that pegmatite dykes, sills and plugs are slightly more active

than other types. However, some places the radioactivity is

as much ae ten times greater than that of the surrounding rook*

These places are usually located within a particular portion

of a pegmatite dyke or a granitieed rook mass at the contact

of a pegmatite dyke and its country rook.

Survey Data

The property was geologically mapped during tht period

of August 8 to August 21*19#j..

The work was conducted for Oeo-Technical Development

Company, Limited oy S. S. Szetu, Ph.D., Geologist. The results

of the mapping are shown on the accompanying plans*

A total of 10.9 miles of line was mapped*

The number of eight-hour man-days required to complete

this work are as follows} li|

(8 hour) Attributable to Man Days Assessment Vork

t

Geological mapping 1(0 x UCalculation and interpretation Z x. kDrafting 1^ * kOffice typing and supervision _ 8 x h

Totals 6?


OEO-TECHNICAL DEVELOPMENT COMPANY LTD,

Toronto, Ontario Herbert Parliment, B. So. P.Eng. December 8, 195^

OCO- TECHNICAL DEVELOPMENT COMPANY LIMITED

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NEWKIRK MINING CORPORATION LIMITED

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83

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]

REPORT OF GEOLOGICAL AND SCINTILLOMETER SURVEY X ON ... · report "a" 31d16sew46 63a.228 anstruther...

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Transcript of REPORT OF GEOLOGICAL AND SCINTILLOMETER SURVEY X ON ... · report "a" 31d16sew46 63a.228 anstruther...