Ontario Geological Survey
Permanent Link to this Record:
MDI000000003636
| Record Name(s) | Gargoyle - 2019 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2024-Jan-02 |
| Date Last Modified | 2024-Jan-02 |
| Created By | |
| Revised By |
Primary Commodities: Nickel, Cobalt
Secondary Commodities: Copper, Palladium
Township or Area: Richardson Lake Area
Latitude: 49° 5' 12.51" Longitude: -91° 5' 37.54"
UTM Zone: 15 Easting: 639181 Northing: 5438856 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52G03SE
Point Location Description: Sample F088222 in Assessment report 20000021476
Location Method: Data Compilation
Access Description: The property can be accessed via primary and secondary logging haulage roads that traverse the property. These can be accessed from Highway 17 approximately 15km east of Upsala or from Highway 623 north of Sapawe. Numerous trails branching from the truck accessible haulage roads provided addition foot and UTV access. Canoe, and motorboat were required to gain access to several areas.
2019: Balmoral Resources Ltd. contracted an airborne VTEM survey. 2021: Wallbridge Mining Company Ltd. carried out prospecting and sampling. 2023: Archer Exploration Corp. carried out geophysical interpretation, prospecting, and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2918, 2923, 2924, 2925, 2926 | 20000018141 | 20000018141 |
| 6244, 6245 | 20000021476 | 20000021476 |
| 4401 | 20000020086 | 20000020086 |
Province: Superior
Subprovince: Wabigoon
Terrane: Marmion
Belt: Lumby Lake
Geological Age: Archean
Jan 02, 2024 (Therese Pettigrew) - The Gargoyle property is part of the 3.0 GA Lumby Lake Greenstone belt. The most recent geology map of the area is OGS Map P.3619 Precambrian Geology of the Lumby Lake Greenstone Belt (Buse et. al. 2010). The area is dominantly mafic metavolcanic with lesser amounts mafic/ultramafic intrusion, MgO komatiitic flows/intrusions, felsic plutons, and chemical and clastic meta-sedimentary rocks (Assessment report 20000020086).
| Rock Type | Rank | Composition | Texture | Relationship | Felsic lava flow-unsubdivided | 1 | sheared | Contains |
|---|---|---|---|---|
| Peridotite | 2 | |||
| Gabbro | 3 | |||
| Mafic lava flow-unsubdivided | 4 | massive and pillowed |
Jan 02, 2024 (Therese Pettigrew) - K. Bjorkman described a medium-grained dark grey to black melanogabbro to peridotite located at 639260 E 5438813N. There is <1% finely disseminated pyrrhotite and trace chalcopyrite, both magmatic sulphides, but very fine grained. It is weakly magnetic. To the east, there is a contact between pillowed and massive mafic volcanic flows and the peridotite to the north. The main peridotite unit is variably serpentine-magnetite altered, and much more magnetic than the first outcrop. It crops out along an alder slew, where it has 1-4% blebby pyrrhotite with pentlandite eyes. The outcrop on the two little islands is slightly sheared, serpentinized peridotite, with minor to trace fine pyrrhotite and chalcopyrite. The sheared zones have serpentine veins <5 cm wide. The southern island contains massive mafic volcanic (Assessment report 20000021476).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 1 | Tremolite | Economic | Gangue |
Jan 02, 2024 (Therese Pettigrew) - Sample F088222 returned 7580 ppm Ni, 879 ppm Cu, 211 ppm Co, and 0.125 ppm Pd from a sheared felsic grab sample containing 7% stringer blebs of pyrrhotite and chalcopyrite, with the chalcopyrite rimming the pyrrhotite. Sample F088223 returned 5390 ppm Ni, 642 ppm Cu, and 158 ppm Co from a similar grab sample (Assessment report 20000021476).
Map - Precambrian Geology of the Lumby Lake Greenstone Belt
Publication Number: P3619 Scale: 1:20,000 Date: 2010
Author: Buse S., Lewis D., Magnus S.J.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office