Ontario Geological Survey
Permanent Link to this Record:
MDI42E12NW00027
| Record Name(s) | Gwyn Lake - 1938, Gwyn Beardmore - 1938 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Feb-04 |
| Date Last Modified | 2022-Jun-20 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: McComber
Latitude: 49° 37' 45.92" Longitude: -87° 45' 52.49"
UTM Zone: 16 Easting: 444785 Northing: 5497710 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E12NW, 42E12SW
Point Location Description: Trench location from Assessment file 20000005755
Location Method: Data Compilation
1930s: trenching and sampling. 1986: ACA Howe International carried out magnetometer and EM surveys. 2003-04: Buck Lake Ventures Ltd. carried out trenching and sampling. 2005: Ultra Uranium Corp. optioned the property from F. Houghton. Ultra Uranium carried out mapping and sampling. 2009-10: Ultra Uranium Corp. carried out prospecting, stripping, and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.47666 | 42E12NE0183 | 42E12NE0183 |
| 2.46688 | 20000005755 | 20000005755 |
| 2.29320 | 42E12NW2025 | 42E12NW2025 |
| 2.33345 | 20000001696 | 20000001696 |
Province: Superior
Subprovince: Wabigoon
Belt: Beardmore-Geraldton
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent | ||
| Vein | 3 | Quartz | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore |
Oct 15, 2019 (Therese Pettigrew) - The Gwyn Lake Claim area saw minor work in the late 1930s that included hand trenching and minor sampling along the southern zone. Ontario Ministry records report local mineralization on the property within the southern zone is comprised of several sub parallel veins. One vein, uncovered for 50 metres along strike reportedly maintained a thickness of 5 metres and remains open in both directions. Chip sampling from the vein returned up to 1.23 oz/ton (38.25 g/t) Au over 2 feet (Assessment report 42E12NW2025). Samples results reported in 1938 ranged from 0.11 oz/t Au over 1.15 me to 0.4 oz/t Au over 1.4 m (DeCamps, 1938). Channel samples taken in 2009 and 2010 returned assays up to 17.409 g/t Au from banded iron formation with quartz veins containing sulphides (Assessment report 20000005755).
File - Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date: 1996
Author:
Publisher Name:
Location: Thunder Bay RGP
Mono - Report of Activities 2008, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report: Thunder Bay North District
Publication Number: OFR6233 Page: 27-29 Date: 2009
Author: Smyk M.C., White G.D., Hinz P., Komar C.L.
Publisher Name: Ontario Geological Survey
Location:
Book - GDIF 42E12NW (unpublished)
Publication Number: GDIF Date: 1988
Author: Ontario Geological Survey
Publisher Name: Ontario Geological Survey
Location:
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