Ontario Geological Survey
Permanent Link to this Record:
MDI41J05SW00013
| Record Name(s) | Bruce Mines-Copper Bay Section - 1853, No. 1 Vein - Copper Bay Section - 1853 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1991-Sep-01 |
| Date Last Modified | 2022-May-18 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Silica, Gold
Secondary Commodities: Silver
Township or Area: Plummer Additional
Latitude: 46° 18' 7.04" Longitude: -83° 47' 10.82"
UTM Zone: 17 Easting: 285427.757 Northing: 5131371.252 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41J05SW
Point Location Description: open hole
Location Method: AMIS Site Visit
Access Description: The site is spread across a long area within the Bruce Mines town zone. The museum is north of highway 17, the camping ground on the south side of highway 17.
1853-75: Montreal Mining Company - production. 1864-1876: West Canada Mining Company - property acquisition and mining. Caved in 1876. 1914-1921: Mond Nickel Company of Canada - mining for quartz for flux (shipped to Sudbury); DD. 1905-1908: dewatering, sporadic mining. 1941: Ventures Ltd. Mining Company - property acquired, mapping, ground geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| PLUMMER 0014 | 41J05SW0002 | 41J05SW0002 |
| PLUMMER 0012 | 41J05SW0007 | 41J05SW0007 |
| PLUMMER 0013 | 41J05SW0001 | 41J05SW0001 |
| PLUMMER 0010 | 41J05SW0006 | 41J05SW0006 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Carbonate | Host |
|---|---|---|---|---|
| Diabase | 2 | Diabase | Contains |
Jun 25, 2010 (A Wilson) - The No. 1 quartz vein has an average with of 5.5 feet and the No. 2 vein has an average width of 5 feet. These two veins are separated by diabase and both are intersected by three basic dikes 20-30 feet in width which dip at high angles. The workings at the Copper Bay location have a length of 1000 feet and three shafts were sunk, the deepest of which was 450 feet. The No. 1 quartz vein strikes N30°W and dips vertically. The No. 2 vein branches away from the No. 1 vein near the north end and parallels it to the south for about 1200 feet before merging with it again. Over most of this length, the two veins are separated by 100 ft of diabase.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 5 | Bornite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Gangue | ||||
| 3 | Pyrrhotite | Economic | Gangue | ||||
| 4 | Chalcocite | Economic | Gangue |
Jun 25, 2010 (A Wilson) - C. W. Knight (ODM) notes that the No. 2 vein on the Wellington and Copper Bay sections has an average grade of 3.3% Cu for an average width of 5.5 feet. Samples usually assay only traces of gold but in a few cases gold values were up to 2.5 oz/t. Another unpublished report indicates that the average grade of the No. 1 vein was 3.8% Cu for a width of 5.5 feet. The average grade of the No. 2 vein was 2.67% Cu for a width of 4.12 feet. The No. 2 vein also returned 0.16oz/t Ag. In the Copper Bay and Wellington Sections, the No. 1 vein was mined for a length of 2500 feet and to a maximum depth of 550 feet, producing ore with an average grade of 3% Cu. A quartz stringer zone in section in greywacke was intersected on strike 900 feet to the northwest of the Copper Bay section. The intersection occurred between 304 and 314 feet at a vertical depth of 200 feet. The best assay obtained was 2.8% Cu over 1.75 feet. Production statistics for each section of the Bruce Mines property were poorly documented. Total mine production from the Bruce Mines: 47,593 tons of concentrates having an average grade of 20% derived from an estimated 400,000 tons mined (300,000 tons milled with 60% recovery); yielding 9850 tons of copper. The copper content of the ore is estimated to have been 4.5% Cu. The majority of the production came from the Copper Bay and Wellington sections of the property. Total recorded shipments of siliceous ore shipped by Mond Nickel Company Limited was 161,683 tons (MRC 12, p. 53)
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Journal - Canadian Mining Journal vol. 60 (July 1939)
Publication Number: CMJ Vol 60 Page: 424-426 Date: 1939
Author: Cuthbertson, G.A.
Publisher Name:
Location:
Map - Geological compilation series, Sault Ste. Marie sheet, District of Algoma
Publication Number: P0303 Scale: 1:126,720 Date: 1997
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Sault Ste. Marie-Elliot Lake, geological compilation series, Algoma, Manitoulin and Sudbury districts
Publication Number: M2419 Scale: 1:253,440 Date: 1979
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology, Bruce Mines-Lake George area, District of Algoma, Ontario
Publication Number: Map 1414A Scale: 1:50,000 Date: 1978
Author: Frarey, M J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/109095
Publication - Geology of the Huronian belt between Sault Ste Marie and Blind River Ontario; Geological Survey of Canada, Memoir 383
Publication Number: GSC Memoir 383 Page: 72-73 Date: 1978
Author: Frarey, M.J.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/104548
Publication - Copper metallogeny, north shore region of Lake Huron, Ontario; Current research part A; by Geological Survey of Canada; Geological Survey of Canada, Paper no. 79-1A
Publication Number: Paper 79-1A Date: 1979
Author: Pearson, W.N.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/104860
Part - The north shore of Lake Huron, summary report on geology and mineral industry
Publication Number: ARV24-01.007 Page: 231-235 Date: 1998
Author: Knight C.W.
Publisher Name: Ontario Bureau of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 53-54 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Report of the Royal Ontario Nickel Commission, with appendix
Publication Number: OP01 Page: 20-24 Date: 1997
Author: Holloway G.T., Miller W.G., Young M., Gibson T.W.
Publisher Name: Ontario Geological Survey
Location:
Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 74 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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