Ontario Geological Survey
Permanent Link to this Record:
MDI000000002242
| Record Name(s) | Redstone - 1991, Lake 3 Area - 1968 |
|---|---|
| Related Record Type | |
| Record Status | Prospect |
| Date Created | 2018-Dec-05 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Therese Pettigrew |
| Revised By | Therese Pettigrew |
Primary Commodities: Copper
Secondary Commodities: Palladium, Platinum, Gold
Township or Area: Grain
Latitude: 48° 52' 47.34" Longitude: -86° 31' 3.84"
UTM Zone: 16 Easting: 535359 Northing: 5414208 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SE
Point Location Description: DDH RS-13-08 from assessment file 20000014536
Location Method: Data Compilation
Access Description: The Redstone and Sally Lake areas are accessible by Mink trail, 18 km west of Marathon, off Highway 17, or by helicopter.
1968: Lakehead Mines Ltd. carried out prospecting, trenching, sampling, and a magnetometer survey. 1991: Redstone Resources Inc. staked the property and conducted soil and rock sampling, mapping, and drilled 3 DDH totaling 558.4 m. 2013: Stillwater Canada drilled 6 DDH totaling 1362 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.55704 | 20000014536 | 20000014536 |
| 2.14737 | 42D15SW0100 | 42D15SW0100 |
| 63.3486 | 42D16NW8368 | 42D16NW8368 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Troctolite | 1 | Metatroctolite | Host |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Bornite | Economic | Ore |
Dec 05, 2018 (Therese Pettigrew) - The Redstone occurrence is situated along the outer margin of the Eastern Gabbro in the northwest corner of the Coldwell Complex. The mineralized zone strikes near east-west, dips between 30 and 45 degrees south and is continuous along strike for 450 m. The zone extends down dip for at least 200 m and is open to the west. The mineralization consists of disseminated chalcopyrite, pyrrhotite and trace bornite and is hosted in a complicated assemblage of Marathon Series rocks. The upper portion of the sequence is dominated by oxide melatroctolite with minor Two Duck Lake gabbro, and the lower zone is composed predominantly of Marathon Series breccia units. The lower breccia units are composed of Two Duck Lake gabbro intermixed with oxide melatroctolite and numerous xenoliths of the Fine-Grained Series and/or metavolcanic footwall. Assays from the 2013 drill program were up to 0.30% Cu, 0.47 ppm Pd, 0.21 ppm Pt, and 0.11 ppm Au (Assessment file 20000014536). Samples collected in 1967 returned assays of up to 0.016% U3O8 (Assessment file 42D16NW8368).
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office