Ontario Geological Survey
Permanent Link to this Record:
MDI52F09SE00044
| Record Name(s) | MacFie - 1956, Meridian Bay - 1911 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2004-Feb-11 |
| Date Last Modified | 2022-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper, Nickel
Secondary Commodities: Zinc
Township or Area: Revell
Latitude: 49° 36' 32.12" Longitude: -92° 12' 12.76"
UTM Zone: 15 Easting: 557541.002 Northing: 5495455.006 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F09SE
Point Location Description: Transfer
Location Method: Based on Assessment
Access Description: The MacFie Occurrence is presently situated on claim K.897193 (former mining location S.904) at the south end of Meridian Bay of Eagle Lake on the west shore of the bay, in the Osbourne Bay area. The property is accessible by boat.
1911: Meridian Bay Mining Company conducted stripping and trenching. Some of the ore was roasted. 1956-57: MacFie Explorations Limited staked the area and conducted geological and geophysical surveys. 1967: Staked by Mr. E. Sukava. 1977: airborne EM survey. 1978: Amoco Petroleum Co. drilled 2 holes on original showing to depths of 295 ft. and 353 ft. 1979: Sherritt Gordon Mines Ltd. drilled 3 holes immediately north of the original showing. 1984-85: geophysical survey. 1987: staked by M. Galbraith.
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Medium-Grained, Sheared, Gray Granodiorite | Contains |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Near |
Aug 03, 2022 (Q Unknown) - The occurrence is situated within dioritic rocks of the Atikwa Batholith at its contact with mafic metavolcanic flows of the Eagle Lake Volcanics in the east. A zone of massive sulphide mineralization 450 m long and 60 m wide occurs within a shear zone striking northeast through a medium-grained, sheared, gray granodiorite intruded by fine-grained, gray, siliceous, felsite dikes. The massive sulphides (< 50%) consist predominantly of coarse-grained, euhedral pyrite, pyrrhotite, and chalcopyrite accompanied by coarse-grained magnetite, no pentlandite was observed by the author. The granodiorite is weakly chloritized, carbonatized, and sericitized. Moorhouse (1941) suggested that the occurrence may be "a replacement of an inclusion in hybrid diorite".
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Magnetite | Economic | Ore |
Aug 03, 2022 (Q Unknown) - 1978: 198 m of DD in 2 holes. Best intersections assayed: 0.05% Cu and 0.006% Zn over 0.3 m; and 0.03% Cu and 0.009% Zn over 0.9 m. Mineralization included pyrite, pyrrhotite and chalcopyrite. Lithologies included diorite, felsic and intermediate metavolcanic rocks. 1979: 242 m of DD in 3 holes. Mineralization included pyrite, pyrrhotite and chalcopyrite. Mineralized zone up to 12 m in width containing massive sulphide/oxide sections and garnet-actinolite alteration. Lithologies included granodiorite and gneiss. 1981: Ontario Geological Survey estimates 10 000 t grading 0.3 opt Au, 3.0 opt Ag, and 2.5% Cu. Various grab samples of sulphide-rich material from the MacFie Occurrence have been reported to assay between 0.20 and 0.45 ounce gold per ton, 3.0 ounces silver per ton, 0.9-4.22% copper and 0.5-1.0% nickel (Shklanka 1969). A grab sample of sulphide-rich material, taken by the author, assayed <0.01 ounce gold per ton, 965 ppm copper, and 82 ppm nickel. (OFR 5723, p.243-244)
Mono - Geology, gold mineralization and property visits in the area investigated by the Dryden-Ignace economic geologist, 1984-1987
Publication Number: OFR5723 Page: 243-244 Date: 1989
Author: Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Feasibility of small scale gold mining in northwestern Ontario (parts of the districts of Kenora, Rainy River, and Thunder Bay), volume 1, text, volume 2, appendices
Publication Number: OFR5332 Page: 41 Date: 1981
Author: Neilson J.N., Bray R.C.E.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1985, Regional and Resident Geologists
Publication Number: MP128 Page: 23,26,28-30 Date: 1986
Author: Kustra C.R.
Publisher Name: Ontario Geological Survey
Location:
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