Ontario Geological Survey
Permanent Link to this Record:
MDI52A04NW00005
| Record Name(s) | Augusta - 1889, Silas Griffin - 1889, Gopher - 1988 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Mar-05 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Silver
Secondary Commodities: Copper, Zinc, Barite, Calcite, Fluorite, Lead
Township or Area: Strange, Lybster
Latitude: 48° 14' 10.14" Longitude: -89° 53' 59.31"
UTM Zone: 16 Easting: 284686.62 Northing: 5346613.52 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A04NW
Point Location Description: Transfer
Location Method: Conversion from MDI
Access Description: Proceed west along Highway 11-17 to Highway 588. Turn left (south) onto Highway 588. Proceed for 36.5 km to a gravel road which leads to Whitefish Lake. This gravel road is just west of Highway 593. Turn left (south) onto the gravel road and proceed for a further 2.6 km. At this point there is an overgrown trail on the left (east) side of the road. Proceed along the overgrown trail in an eastward direction for 400 m. The Augusta mine site is south of the trail in a north-facing cliff above a talus slope.
1889: Silas Griffin and Co. conducted development work, consisting of a 3.7 m shaft and two adits in a NW-facing escarpment. The No. 1 adit is 30.5 m long. The No. 2 adit is 73.2 m long. 1988: Belore Mines Ltd. conducted sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.12639 | 52A05SW0017 | 52A05SW0017 |
Province: Southern
Formation Group: Animikie Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Mudstone | 1 | Shale | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Calcite And Quartz | Host | |
| Diabase | 3 | Diabase Sill |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Argentite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Fluorite | Economic | Ore | ||||
| 4 | Galena | Economic | Ore | ||||
| 5 | Pyrite | Economic | Ore | ||||
| 6 | Sphalerite | Economic | Ore | ||||
| 1 | Calcite | Economic | Gangue | ||||
| 2 | Quartz | Economic | Gangue |
Feb 06, 2018 (Therese Pettigrew) - On the west side of a hill, a composite vein about 4 feet in width is exposed. It has been explored by an adit 100 feet long and by a shaft sunk from a point 100 feet below the adit. The hill is capped by a diabase sill 50 feet thick, below this are flat-lying Animikie sediments 100 feet thick consisting chiefly of black shale. The rocks have been dislocated by a vertical fault striking south 82 degrees east, vertical slickensides are visible on the south wall of the adit. There is a brecciated zone averaging 4 feet in width along the fault. The brecciated zone is cemented with vein material; as exposed in the shale, it consists of white and pink calcite, green and purple fluorite, pyrite, galena, and quartz. The galena is irregularly distributed and is not abundant. Vein material in the diabase is not exposed (Tanton, 1931).
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
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 Page: 114-115 Date: 1931
Author: Tanton, T.L.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100799
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