Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F05NE00049

Record: MDI52F05NE00049

General

Mineral Record Identification
Record Name(s) North Shore - 1956, Alcock - Caviar - 1956, Green Bay Prospect - 1956
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 2011-Feb-16
Date Last Modified 2024-Apr-25
Created By
Revised By

Commodities

Primary Commodities: Copper



Location

Township or Area: Atikwa Lake Area

Latitude: 49° 23' 19.07"    Longitude: -93° 42' 4.76"

UTM Zone: 15    Easting: 449104   Northing: 5470896    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F05NE

Point Location Description: Approximate, No 10 symbol, map M2273 and sign for A, figure 3 on on report R111.

Location Method: Conversion from MDI



Exploration History

1956: trench 11 m long (35 ft), 2 pits, 2 drill holes totalling 102 m (335 ft) by Green Bay Mining and Exploration Company Ltd, as well as an SP geophysical survey. 2007: Canadian Arrow Mines Ltd., airborne geophysical survey (AEM, AMAG).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
63.763 52F05NE8181 52F05NE8181
21 52F05NE0038 52F05NE0038
2.35178 20000002212 20000002212

Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Western Wabigoon

Belt: Kakagi-Rowan Lakes

Geological Age: Precambrian  



Geology Comments

Feb 16, 2011 (J Bongfelt) - 'Chalcopyrite, pyrite and pyrrhotite occur along fractures and between pillows in Early Precambrian basaltic flows.' (Kenora Historical File 52F/05NE00049/62, Green Bay - Document No. SMDR 000479)




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic pillowed flow 1 Basalt Pillowed Host
Gabbro 2 Gabbro Host

Lithology Comments

Feb 16, 2011 (J Bongfelt) - 'North Shore Cu - trenching of the sulphide occurrence revealed Cpy-Py-Po mineralization between the fractures and pillow basalts. The two holes intersected mostly porphyritic granite and minor basalt; these holes may have been drilled down-dip a series of dykes. Only rusty, basaltic rubble was located by the author with traces of chalcopyrite located 500m east of Caviar Lake.' (Kenora AF 52F/05NE, JJ-1, Raoul, A. - 3.0 Economic Geology)




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyrrhotiteEconomicOre
2PyriteEconomicOre
3ChalcopyriteEconomicOre

Mineralization Comments

Feb 16, 2011 (J Bongfelt) - 'North Shore Cu - trenching of the sulphide occurrence revealed Cpy-Py-Po mineralization between the fractures and pillow basalts. The two holes intersected mostly porphyritic granite and minor basalt; these holes may have been drilled down-dip a series of dykes. Only rusty, basaltic rubble was located by the author with traces of chalcopyrite located 500m east of Caviar Lake.' (Kenora AF 52F/05NE, JJ-1, Raoul, A. - 3.0 Economic Geology)


Nov 23, 2017 (Therese Pettigrew) - The mineralization can be broken down into two basic types: the mineralization in the pillowed basalts with copper values, and the mineralization in the basic intrusives with nickel and copper values. The most abundant sulphide in both cases is pyrrhotite, with minor amounts of pyrite and chalcopyrite. Pits 1 and 11 show the best nickel values, the sulphides being disseminated through a gabbroic rock. Some of the pillowed basalts have replacement pyrrhotite, chalcopyrite, and pyrite around the pillow edges, and also through the pillows (AFRI 52F05NE8181).



Mineral Record Details

References

File - Resident Geologist files 52F/05NE, JJ-1, Raoul, Allen, Denmark Lake Proper; 52F/05NE, I-2, Green Bay Mining and Explorations

Publication Number: Date:

Author:

Publisher Name:

Location: Kenora RGP office


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

Publication Number: MDC012 Page: 159  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geology of the Atikwa Lake area, District of Kenora

Publication Number: R111 Page: 32  Date: 1973

Author: Davies J.C.

Publisher Name: Ontario Division of Mines

Location:


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

Publication Number: MDC002 Page: 14  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:


MonoMap - Geology of the Atikwa Lake area, District of Kenora

Publication Number: OFR5055 Page: 70-71  Date: 1997

Author: Davies J.C.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


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