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Ontario Geological Survey
Permanent Link to this Record:
MDI52P02NW00004
| Record Name(s) | Leitch Cu-Ni - 1956, Neil Smith Option - 1956, Shabuskwia Lake - 1980, Linsey Bay Occurrence - 2003, Linsey Bay - 1980 |
|---|---|
| Related Record Type | Simple |
| Record Status | Occurrence |
| Date Created | 1980-May-20 |
| Date Last Modified | 2021-Dec-14 |
| Created By | Q Unknown |
| Revised By | C Salo |
Primary Commodities: Copper, Nickel
Secondary Commodities: Cobalt
Township or Area: Ficht Lake Area
Latitude: 51° 10' 30.21" Longitude: -88° 56' 31.11"
UTM Zone: 16 Easting: 364251.254 Northing: 5671084.848 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52P02NW
Point Location Description: Outcrop
Location Method: Conversion from MDI
Access Description: Located immediately east of Linsey Bay of Shabuskwia Lake, 98 km north of Armstrong, 82 km southwest of Fort Hope first nation and 90 km southeast of Pickle Lake. Accessible by float plane or helicopter. The closest air service points for fixed wing aircraft are Pickle Lake & Armstrong. Helicopter service is available from Pickle Lake.
1956: Line cutting, VLEM, trenching and 4 ddh - Leitch Gold Mines Ltd. 1957: MAG. and 7 ddh. 1988: Air VLF-EM and MAG - Goldpost Resources Inc. 1999 - K. Fenwick - prospecting. 2003 - 2004 East West Resource Corporation carried out an exploration program on their Linsey Bay Property consisting of airborne geophysical surveys (mag and EM), diamond drilling and assaying.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Miminiska-Fort Hope
Geological Age: Neoarchean
Sep 29, 2006 (Mark Puumala) - The Leitch Cu-Ni occurrence is located within the transition zone between the Uchi Subprovince (volcano-plutonic) to the north and the English River Subprovince (metasedimetary) to the south. This deposit is located near the southern margins of a granitic batholith referred to by Wallace (1981) as the Shabuskwia Lake Batholith. Rocks of the area are dominated by massive biotite and biotite-hornblende granite and metasedimentary migmatite (ODM Map 2237), while the copper and nickel mineralization is reported to have been found within an anorthosite intrusion surrounded by granite. The host intrusion appears to be one of a series of mineralized mafic/ultramafic bodies located near the southern and eastern margins of the Shabuskwia Lake Batholith between Shabuskwia and Weese Lakes. Mason et al. (2000) interpret this series of occurrences to be associated with a continuous 600 to 700 m thick anorthositic gabbro sill.
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Anorthosite - Gabbro | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore |
Sep 29, 2006 (C Salo) - Mineralizations occurs as disseminations in anorthosite gabbro. Grab samples returned from 0.52% to 2.30% Cu, from 0.38% to 0.62% Ni and from 0.21% to 0.26% Co.
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Rank | Characteristic |
|---|---|
| 2 | Disseminated |
| 1 | Intrusive |
Map - Operation Fort Hope, Lansdowne House-Fort Hope sheet, districts of Kenora (Patricia Portion) and Thunder Bay
Publication Number: P0562 Scale: 1:126,720 Date: 1997
Author: Thurston P.C., Carter M.W.
Publisher Name: Ontario Dept. of Mines
Map - Fort Hope-Lansdowne House sheet, geological compilation series, Cochrane, Kenora, and Thunder Bay districts
Publication Number: M2237 Scale: 1:253,440 Date: 1972
Author: Thurston P.C., Carter M.W., Riley R.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Mono - Mineral Occurrences and Prospects in the Fort Hope-Winisk Area
Publication Number: OFR5926 Scale: Date: 1995
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
Mono - Operation Fort Hope
Publication Number: MP042 Scale: Date: 1970
Author: Thurston P.C., Carter M.W.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Mono - Report of Activities 1999, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report: Thunder Bay North-Sioux Lookout Districts
Publication Number: OFR6004 Scale: Date: 2000
Author: Mason J.K., Farrow D.G., Seim G.Wm., White G.D., O'Brien M.S., Walden A., Komar C.L.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office