Ontario Geological Survey
Permanent Link to this Record:
MDI52F09SW00008
| Record Name(s) | Copeland - 1935 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-22 |
| Date Last Modified | 2022-Jul-18 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Tabor Lake Area
Latitude: 49° 31' 16.97" Longitude: -92° 29' 4.54"
UTM Zone: 15 Easting: 537302.875 Northing: 5485545.385 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F09SW
Point Location Description: General
Location Method: Data Compilation
Access Description: The Copeland prospect may be reached 49 km east from Dryden on Hwy 17, at Borups Corner, and thence 7.1 km south on the Sandy Point Road. At this point, turn east onto a dirt road for an additional 0.35 km to the Sakoose mine. The Copeland prospect can be reached at a point 1450 m from Shaft No.4 of the Sakoose Mine, on a bearing of N152°. It is on line 2W, 14 + 50 S, on the Venturex grid. (OFR5731, p.47)
1935: Nordic Sturgeon Gold Mines Ltd. accidentally discovered the old workings. They discovered a quartz vein with visible gold (Gold Magazine, June, 1936). 1987: Venturex Resources Ltd. and Nexus Resources Ltd. re-discovered the old workings during joint-venture exploration at the Sakoose mine and Maw occurrence. They report that samples they took ranged from 193 ppb gold to 0.39 ounce gold per ton on analysis (Kenora AF 52F09SW OO-1, Venturex Resources Ltd.).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52F09SW OO-1 | Venturex | Venturex |
Province: Superior
Subprovince: Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Archean
Feb 02, 2010 (J Bongfelt) - The property is underlain by mafic meta volcanic rocks (Kresz 1987) intruded by two parallel felsic dikes (here called the Shaft Zone and the Main Zone). The shear zones that contain the felsic dikes are characterized by intense ankeritic alteration over a 2 m or greater width. The Shaft Zone appears to be entirely iron carbonatized felsic dike, whereas the Main Zone is a combination of felsic dike rock and host basalt, all of which are strongly iron carbonatized. The two parallel, tight shear zones (Shaft Zone and Main Zone) strike between 010° and 020° and are 18m apart. They vary in dip from 30° and 68° to the west. North of the shaft, a quartz carbonate vein strikes at high angle to the north-northeast trending shear zones. The quartz-carbonate vein is interpreted to be an extensional quartz vein related to the north-northeast trending shear zones. The angular relationship of the extension vein to the shear zones, the orientation of the schistosity (034°;46°NW) within the shear fabric, and the left-stepping attitude of the north-northeast trending shearing suggests a sinistral component of movement in the shear zone. These structural observations are comparable with those made elsewhere in this area, which indicate sinistral, east-side-down, oblique-slip shearing. The mineralized zone within the Main Zone is about 2 m wide and is exposed in two trenches and one test pit over a 75m length. The mineralized zone displays a replacement texture and consists of a stockwork of quartz-dolomite veinlets with fuchsite. The rock included within the stockwork is bleached and pyritized (5% pyrite). The quart-dolomite stockwork is light to medium grey in colour. The veinlets have a semi-translucent to opaque texture. Some ribbons of chlorite occur within the veinlets. The mineralization consists of up to 5% very fine to medium grained pyrite and traces of pyrrhotite. The Shaft Zone is similar to but less altered than the Main Zone. The iron carbonatized felsic dyke contain 5% pyrite. The zone is exposed in one trench and one shaft over a 30m length. The extensional quartz-carbonate vein is poorly exposed. It is 55cm wide, and surrounded by ankeritic alteration. The vein is light grey to smoky-grey, and opaque. Some wispy ribbons of chlorite and magnetized mafic xenoliths occur in the quartz. Mineralization is up to 1% fine grained pyrite. (OFR5731, p.47-49)
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Gold | Economic | Ore | ||||
| 10 | Pyrite | Economic | Ore | ||||
| 15 | Pyrrhotite | Economic | Ore |
Feb 02, 2010 (J Bongfelt) - 1989 - All fifteen grab samples taken by the author returned less than 100 ppb on analysis; 1987 - Venturex Resources Ltd. And Nexus Resources Ltd. Report that samples they took ranged from 193 ppb gold to 0.39 oz. gold per ton on analysis (Asessment File, Resident Geologist's Office, Kenora); 1935 - Nordic Sturgeon Gold Mines Ltd. Discovered a quartz vein with visible gold (Gold Magazine, June, 1936). The occurrence consists of one shaft, five trenches, and one exploration pit.
MonoMap - Geology of the Kawashegamuk Lake area, District of Kenora
Publication Number: OFR5659 Date: 1987
Author: Kresz D.U.
Publisher Name: Ontario Geological Survey
Location:
Mono - Property visits by the Dryden area mineral commodity geologist, 1989
Publication Number: OFR5731 Page: 47-50 Date: 1990
Author: Delisle P.C.
Publisher Name: Ontario Geological Survey
Location:
File - Resident Geologist files Kenora Assessment File, Venturex Resources Ltd. 52F09SW OO-1
Publication Number: Date: 2010
Author:
Publisher Name:
Location: Kenora RGP
Map - Kenora data series, Eastern Peninsula-Lake of the Woods area, District of Kenora
Publication Number: P2035 Scale: 1:15,840 Date: 1980
Author: Rivett A.S., MacTavish A.D.
Publisher Name: Ontario Geological Survey
Location:
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