Ontario Geological Survey
Permanent Link to this Record:
MDI52A15SE00021
| Record Name(s) | Bishop - 1930 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-15 |
| Date Last Modified | 2022-Mar-04 |
| Created By | |
| Revised By |
Primary Commodities: Zinc, Lead
Secondary Commodities: Copper, Barite
Township or Area: Glen, Dorion
Latitude: 48° 50' 22.56" Longitude: -88° 39' 32.38"
UTM Zone: 16 Easting: 378270 Northing: 5410952 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A15SE
Point Location Description: AMIS shaft location, map in Assessment report 52A15SE0002
Location Method: Data Compilation
Pre-1930: unknown individuals conducted pitting and trenching, and a shaft was sunk. 1982: Noranda Exploration Company Ltd. carried out geological mapping. 1993: D. Petrunka carried out prospecting and sampling. 2013: T. Cox carried out a VLF-EM survey.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.5491 | 52A15SE0002 | 52A15SE0002 |
| 2.15534 | 52A15SE0003 | 52A15SE0003 |
| OP93-062 | 52A15SE0005 | 52A15SE0005 |
| 2.53910 | 20000008441 | 20000008441 |
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Host |
|---|---|---|---|---|
| Breccia-unsubdivided | 2 | Dolomite | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Sphalerite | Economic | Ore | ||||
| 2 | Galena | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 1 | Barite | Economic | Gangue |
Feb 24, 2020 (Therese Pettigrew) - Northeast of the shaft of the Dorion mine and along the same fault zone on the old location 6 L, a pit and trench expose brecciated chert and sandstone. In the pit a 1.5-foot width of breccia is cemented with quartz and is fairly well mineralized with very light-coloured sphalerite. In the centre is an 18- to 22-inch vein of reddish barite with one to two feet of calcite on either wall. On location 5 L the old Bishop shaft was sunk about 100 feet on the faulted contact between the granite on the northwest and sediments on the southeast. The brecciated zone here is over 6 feet wide, and the cement is almost entirely white, coarsely crystalline calcite with a few specks of chalcopyrite and galena (Hawley, 1930). Lead and zinc minerals are associated with the nonconformity between the early Precambrian granite rocks and the late Precambrian Sibley group of rocks characterized by a hard brittle, dolomite, limestone, chert mudstone breccia. Lead and zinc minerals are also associated with the granite at the contact, where the granite is fragmented and brecciated. Samples collected from the shaft area returned up to 2200 ppm Pb and 22.0% Zn (Assessment report 52A15SE0003).
Part - Lead and zinc deposits, Dorion and McTavish townships, Thunder Bay District
Publication Number: ARV38-06.002 Scale: Date: 1998
Author: Hawley J.E.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Fort William and Port Arthur, and Thunder Cape Map-area, Thunder Bay District, Ontario; Geological Survey of Canada, Memoir 167
Publication Number: GSC Memoir 167 Scale: Date: 1931
Author: Tanton, T.L.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100799
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