Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F08NW00042

Record: MDI52F08NW00042

General

Mineral Record Identification
Record Name(s) Alcock - Jergenson - 1951, Alcock - 1951
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1984-Feb-02
Date Last Modified 2022-Aug-04
Created By
Revised By

Commodities

Primary Commodities: Copper, Nickel



Location

Township or Area: Tadpole Lake Area

Latitude: 49° 26' 2.46"    Longitude: -92° 17' 42.04"

UTM Zone: 15    Easting: 551115.003   Northing: 5475943.998    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F08NW

Point Location Description: Precise

Location Method: Conversion from MDI

Access Description: Fifty-four kilometres southeast of Dryden, twenty kilometres south of Dyment, east side of Kawashegamuk Lake, Kawashegamuk Lake Area. (Kenora RGP, SMDR#00545, Historical Files - F08NW00042)



Exploration History

pre-1952: The prospect was originally staked by Cecil Alcock, of Kenora who carried out stripping, trenching and geophysical survey. 1952: 1951: The property was optioned to the International Nickel Co. of Canada, Ltd. (INCO). An electromagnetic survey by INCO was carried out, but dropped the option in 1952. 1956: Optioned to Falconbridge Nickel Mines, Ltd., but there is no record of work carried out. 1958: 127 m of DD in one hole.


Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Western Wabigoon

Belt: Eagle-Wabigoon-Manitou

Geological Age: Precambrian  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Gabbro 1 Contains

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5ChalcopyriteEconomicOre
10PyrrhotiteEconomicOre

Mineralization Comments

Aug 04, 2022 (Q Unknown) - The showing lies within a basic intrusive immediately adjacent to a pronounced drift-filled topographic depression, which may be a fault zone. Disseminated chalcopyrite and nickeliferous pyrrhotite in gabbro body at border of granodiorite stock in volcanics. Chalcopyrite also occurs in a rhyolite dike. Best grab samples in gabbro assayed 0.63% Cu and 0.37% Ni. Best grab samples from rhyolite dike assayed 4.14% Cu. (MDC012, 1969, p. 158, 159)(Kenora RGP, SMDR#00545, Historical Files - F08NW00042).



Mineral Record Details

References

Mono - Copper, nickel, lead and zinc deposits in Ontario (revised to February, 1957)

Publication Number: MDC002 Page: 15  Date: 1957

Author: Thomson J.E., Ferguson S.A., Johnston W.G.Q., Pye E.G., Savage W.S., Thomson R.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 158-159  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office