Ontario Geological Survey
Permanent Link to this Record:
MDI52J02NE00012
| Record Name(s) | West Couture Lake - 1991, Camp Vein (Accessory) - 1935, Thunder Bay Gold Mines - 1991, Anderson Vein (Main) - 1935, Al 662 - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-20 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Beckington Lake Area
Latitude: 50° 7' 45.7" Longitude: -90° 38' 52.05"
UTM Zone: 15 Easting: 668114.635 Northing: 5555662.998 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02NE
Point Location Description: Old Shaft
Location Method: Conversion from MDI
Access Description: The easiest way to reach the area is to walk east 1 km from North Bay of Sturgeon Lake to Couture Lake. Alternatively, a boat can be portaged from North Bay of Sturgeon Lake over the St. Anthony site to Couture Lake. The AL 662 shaft area is approximately 3.5 km north on the west shore of Couture Lake.
1935: sampling. 1941: sampling.
Dec 07, 2005 (R Tuomi) - An early discription of the area is by E. S. Moore in 1910,(Moore, 1911). On the west side of the lake, on claim A.L. 662, there is an old shaft at least 30 feet deep, containing a good deal of water. The vein is about 2 feet wide and dips 30 degree west. It fills a fissure between a footwall of schist and a hanging wall of altered graywacke. The vein is mineralized with chalcopyrite, galena, sphalerite, pyrite and a little pyrrhotite. A little free gold was found in some specimens of quartz believed to have come from the shaft.
| Rock Type | Rank | Composition | Texture | Relationship | Sandstone | 1 | Greywacke | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host | |
| Mafic lava flow-unsubdivided | 3 | Porphyritic Mafic Pillows | Near | |
| Schist-Unsubdivided | 4 | Near | ||
| Mafic pillowed flow | 5 |
Dec 07, 2005 (R Tuomi) - Mineralization occurs in quartz veins. Host rock: schist and altered graywacke contact. Other associated rock types: 1) porphyritic mafic pillows 2) massive pillowed flows.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Galena | Economic | Ore | ||||
| 3 | Gold | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 5 | Pyrrhotite | Economic | Ore | ||||
| 6 | Sphalerite | Economic | Ore |
Dec 07, 2005 (R Tuomi) - 1935: Surface grab samples collected in 1935 on the Camp Vein gave gold assays up to 1 ounce per ton. 1941: Resampling the Camp Vein in 1941 gave assays up to 1.3 ounces gold per ton over a width of 3 feet.
Dec 07, 2005 (R Tuomi) - sheared mafic volcanics.
Book - CLIPPINGS 1909-1941
Publication Number: Clippings Date: 1909
Author:
Publisher Name:
Location:
Part - The Sturgeon Lake gold field
Publication Number: ARV20-01.005 Page: 150 Date: 1998
Author: Moore E.S.
Publisher Name: Ontario Bureau of Mines
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office