Ontario Geological Survey
Permanent Link to this Record:
MDI52F15NE00010
| Record Name(s) | Coates Molybdenum - 1906 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1984-Feb-10 |
| Date Last Modified | 2022-Jul-20 |
| Created By | |
| Revised By |
Primary Commodities: Molybdenum
Township or Area: Webb
Latitude: 49° 55' 10.08" Longitude: -92° 30' 44.55"
UTM Zone: 15 Easting: 535005 Northing: 5529790.71 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F15NE
Point Location Description: Location from OGS map P2371
Location Method: Data Compilation
Access Description: Accessible from Dryden via airport road (Hwy 601) to Ghost Lake Road NE along the southern margin of Gullwing Lake.
1906: Showing discovered by C.D. Coates. Many years later, the deposit was staked by Coates, who carried out surface work periodically until about 1940. 1980-81: Patino Mines Ltd. conducted line cutting, magnetometer and EM-16 surveys.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.36666 | 20000000048 | 20000000048 |
| 52F16NW DC-0060 | 52F16NW0121 | 52F16NW0121 |
| 52F15NE-0016-A1 | 52F15NE0339 | 52F15NE0339 |
| 52F16NW-0055-A1 | 53F16NW0120 | 53F16NW0120 |
Province: Superior
Subprovince: Wabigoon
Belt: Abram-Minnitaki Lakes
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Near | ||
| Terrigenous-Clastic-Unsubdivided | 3 | Adjacent |
Dec 07, 2005 (D Farrow) - Molybdenite mineralization is contained in aplite dykes which in turn occur within metasedimentary biotite-quartz gneisses.
Jun 29, 2020 (Therese Pettigrew) - The rocks in the vicinity consist of dark-coloured almost black greywackes, which in places are rusty-weathering and which strike east-west. The beds dip 35 degrees S. Thin, black, slaty bands interbedded with the greywacke are probably altered muds. These sediments are cut by a vertically dipping pegmatite dike from 4 to 5 feet wide, the strike of which is parallel to the beds (Harding, 1950). There are two kinds of dykes in the area: white pegmatite dykes, comprised of potassium feldspar, quartz, and muscovite; and aplite dykes, comprised of salmon pink aplite and quartz. Aplite dykes occur only within the metasedimentary biotite-quartz gneisses. The aplite dykes often carry erratic amounts of molybdenite (Assessment report 53F16NW0120).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Malachite | Economic | Ore |
Dec 07, 2005 (D Farrow) - No assays. Erratic Mo - trace to 4% locally reported by Peter Born, 1981.
Jun 29, 2020 (Therese Pettigrew) - The pegmatite is composed chiefly of quartz and feldspar. A pit 6 feet deep has been sunk in the dyke. Crystals of molybdenite are disseminated throughout the pegmatite and in the greywacke close to the pegmatite. Pyrite, pyrrhotite, and malachite stain were also exposed in the pit. At the present stage of development, the amount of molybdenite exposed appears to be only a fraction of 1 per cent, of the total molybdenite-bearing body (Harding, 1950). The rare metal pegmatites in this area strike close to N-S, whereas the pegmatites carrying molybdenum strike E-W, conforming to the strike of the wallrock (Assessment report 20000000048).
Map - Geological series, Lateral Lake area (west half), District of Kenora
Publication Number: P2371 Scale: 1:15,840 Date: 1980
Author: Page R.O., Christie B.J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Molybdenum deposits of Ontario
Publication Number: MDC007 Page: 45 Date: 1968
Author: Johnston F.J.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the Gullwing Lake-Sunstrum area
Publication Number: ARV59-04 Page: 26 Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Sioux Lookout data series, Echo Township area, District of Kenora (Patricia Portion)
Publication Number: P2332 Scale: 1:15,840 Date: 1980
Author: Speed A.A., Maxwell G.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Sioux Lookout data series, Gullwing Lake area, District of Kenora (Patricia Portion)
Publication Number: P2331 Scale: 1:15,840 Date: 1980
Author: Speed A.A., Maxwell G.J.
Publisher Name: Ontario Geological Survey
Location:
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