Ontario Geological Survey
Permanent Link to this Record:
MDI41J01NW00026
| Record Name(s) | Black Lake Occurrence - 1906 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1977-Jan-12 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Gold
Township or Area: Shedden
Latitude: 46° 14' 37.47" Longitude: -82° 23' 55.2"
UTM Zone: 17 Easting: 392175 Northing: 5122080.004 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41J01NW
Point Location Description: precise
Location Method: AMIS Site Visit
Access Description: 4.5km north from hwy 17 on Shooting Range Road. At that point take east bearing and walk approx 380m to shaft. Approx 350m east of access rd adjacent swamp to east.
Circa 1906: 2 shafts, 80 and 20 feet deep; several car-loads of material mined. 1908: Ontario Bureau of Mines - DD-2-119 feet. 1956: Federal Kirkland Mining Co. - mapping, trenching, DD. 1956: S. Linton - DD-4-209 ft 1966: Gradore Mines Ltd. - DD-9-3154 ft., mapping, trenching. 1985: Enertex Developments Inc. - mapping, ground geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63A.322 | 41J01NW9479 | 41J01NW9479 |
| Shedden0020 | 41J01NW0001 | 41J01NW0001 |
| Shedden 0021A1 | 41J01NW0002 | 41J01NW0002 |
| SHEDDEN 0010-D1 | 41J01NW0006 | 41J01NW0006 |
| SHEDDEN 0014-A1 | 41J01NW0016 | 41J01NW0016 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Geological Age: Early Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Granite | 2 | Sheared | Contains | |
| Diabase | 3 | Diabase | Contains |
Aug 31, 2010 (A Wilson) - Diamond drilling intersected narrow mineralized, quartz veins in granite, granite gneiss and cross-cutting diabase dikes. The quartz veins occupy an interpreted shear zone and lie at the contact between the granite and diabase. The shear zone strikes NW, and dips 70E to 70W. The quartz veins range in width from 2 to 10 feet. The shaft was sunk adjacent to one of the wider veins. The felsic intrusive rocks comprise granite and to a lesser extent, granite gneiss and granite with aplite dykelets. The most abundant rock type is a medium grained, equigranular granite. It is medium pink and less commonly, grey green in colour and weathers to a medium grey. Partial alteration to chlorite is common in these areas. Diabase dikes cross cut the granite. Most of the dikes trend northwest and vary from a few feet to 400 feet in width. Northeast trending dikes up to 150 feet wide occur through the central part of the property. The diabase is fine to medium grained and is medium to dark grey green in colour. Moderate chloritization of the amphiboles occurs throughout the dikes. Xenoliths of granitic host rock are present within the diabase near the contacts of some of the larger dikes. The shaft was sunk near the intersection of a NW trending shear and a NE-trending shear.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 4 | Bornite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Gangue | ||||
| 3 | Arsenopyrite | Economic | Gangue | ||||
| 5 | Marcasite | Economic | Gangue |
Aug 31, 2010 (A Wilson) - The best intersection was from Gradore Mining DDH 66-1 which returned 1.47% Cu over 5 feet, 0.78% Cu over 10 ft. and 1.82% Cu over 2 feet. Other drill holes intersected spotty high grade chalcopyrite. Occurrence grade mineralization was intersected in most of the drill holes. Grab samples collected from the muck pile by Gradore Mining returned 0.02oz/t Au and 0.73% Cu.
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 2 | Vein |
Map - Lewis and Shedden townships and parts of Indian Reserves No. 5 and No. 7, Algoma District
Publication Number: M2315 Scale: 1:31,680 Date: 1977
Author: Robertson J.A.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Cutler area, District of Algoma
Publication Number: R147 Page: 60 Date: 1977
Author: Robertson J.A.
Publisher Name: Ontario Division of Mines
Location:
Map - Shedden Township and part of I.R. No. 7, District of Algoma
Publication Number: P0318 Scale: 1:15,840 Date: 1997
Author: Robertson J.A.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 64 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Statistical review
Publication Number: ARV18-01.001 Page: 51 Date: 1998
Author: Gibson T.W., Corkill E.T.
Publisher Name: Ontario Bureau of Mines
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: 66 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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