Ontario Geological Survey
Permanent Link to this Record:
MDI53B14NE00013
| Record Name(s) | Centre Lake - 1985, Grid No. 5 - 1978, Randall Lake - 1985 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1995-May-23 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper
Township or Area: Keeyask Lake Area
Latitude: 52° 52' 47.22" Longitude: -91° 5' 46.33"
UTM Zone: 15 Easting: 628112.69 Northing: 5860595.09 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B14NE
Point Location Description: General
Location Method: Conversion from MDI
1978: St. Joseph Explorations Ltd. carried out mapping. 1985: Sulpetro Minerals Ltd. carried out mapping and sampling. 1985: Moss Resources carried out mapping, trenching, and sampling. 1988: Power Explorations Inc. drilled 2 DDH totaling 229.8 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 18 | 53B14NE0008 | 53B14NE0008 |
| 53B14NE0014 | 53B14NE0029 | 53B14NE0029 |
| 53B14NE0012 | 53B14NE0033 | 53B14NE0033 |
| 53B14SE0022 | 53B14NE0553 | 53B14NE0553 |
| 16 | 53B14SE0002 | 53B14SE0002 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Geological Age: Mesoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host | |
| Ironstone-unsubdivided | 3 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore | ||||
| 5 | Magnetite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Ankerite | Economic | Gangue | ||||
| 3 | Chlorite | Economic | Gangue | ||||
| 4 | Fuchsite | Economic | Gangue | ||||
| 5 | Talc | Economic | Gangue |
Aug 16, 2019 (Therese Pettigrew) - The quartz + Fe-Mg carbonate + chlorite + magnetite-bearing rock and cross-cutting quartz-sulphide veins exposed near the northeastern shore of Centre Lake contain highly erratic gold values up to 1065 ppb. The distribution and the geometry of the veined and sulphide-bearing zone are not known. The veins are typically less than 3 cm wide, occur in a stockwork fashion, pinch out over distances of less than 1 m, and carry variable amounts of ankerite and up to 1% disseminated pyrite, chalcopyrite and arsenopyrite. Where quartz-rich, the carbonate-bearing wall rock carries up to 1% pyrite and arsenopyrite (Breaks and Osmani, 1989). Power Explorations’ DDH RL-88-14 assayed up to 0.248 oz/t Au over 3.3 feet (7.7 g/t Au over 1 m) from a bleached mafic volcanic with abundant quartz veinlets (Assessment report 53B14NE0008).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Article - Geology and gold mineralization of the Eyapamikama Lake area of the North Caribou Lake greenstone belt, District of Kenora (Patricia Portion)
Publication Number: MP126.055S Scale: Date: 1997
Author: Piroshco D.W., Shields H.N.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, Eyapamikama Lake area, (Opapimiskan Lake project), Kenora District (Patricia Portion)
Publication Number: P2834 Scale: 1:31,680 Date: 1985
Author: Bartlett J.R., Breaks F.W., de Kemp E.A., Shields H.N.
Publisher Name: Ontario Geological Survey
Location:
Mono - The geology of gold prospects in the North Caribou Lake greenstone belt, District of Kenora, northwestern Ontario
Publication Number: OFR5698 Scale: Date: 1989
Author: Piroshco D.W., Breaks F.W., Osmani I.A.
Publisher Name: Ontario Geological Survey
Location:
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