Ontario Geological Survey
Permanent Link to this Record:
MDI52B09NW00005
| Record Name(s) | Upper Shebandowan Lake - 1979 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1979-Jul-10 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | R Degagne |
Primary Commodities: Talc
Township or Area: Kashabowie Lake Area
Latitude: 48° 37' 55.18" Longitude: -90° 25' 40.32"
UTM Zone: 15 Easting: 689506.35 Northing: 5389740.906 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B09NW, 52B09SW
Point Location Description: Occurrence
Location Method: Conversion from MDI
Access Description: The occurrence is located on the south shore of Upper Shebandowan Lake, 92 km west northwest of the city of Thunder Bay. The occurrence can be reached by boat launched on the north shore of Upper Shebandowan Lake. The nearest boat launch, at the Kashabowie River Resort, is approximately 1.6 km north northwest of the occurrence. The launch is accessible from Highway 11 which passes north of Upper Shebandowan Lake.
1930 - This occurrence is probably that which was reported to be under investigation as a potential supply of soapstone by Mr. E. Cowperthwaite of Interprovincial Industries (Canada) Limited (Canadian Mining Journal Mar. 7, 1930; The Fort William Daily Times Journal Sept. 5, 1930; Sept. 16, 1930). There is no recorded developmental work on the occurrence. Most of the activity in the area has been exploration for base metals (Resident Geologist Files, MNDM, Thunder Bay).
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Shebandowan
Geological Age: Archean
Dec 07, 2005 (R Degagne) - The area was mapped by Tanton (1938) and Hodgkinson (1968) who both noted the talc occurrence. The area is underlain by mafic metavolcanics intruded by gabbroic rocks. Talc-bearing chlorite schist was noted near the shoreline of the lake and about 200 m inland. Talc-carbonate schist, interpreted to be metaperidotite, is noted in drill logs by Falconbridge Nickel Mines Ltd. from exploratory drilling carried out in 1974 in the vicinity of the occurrence (Resident Geologists Files, MNDM, Thunder Bay).
| Rock Type | Rank | Composition | Texture | Relationship | Granitoid-Unsubdivided | 1 | Near |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent | ||
| Peridotite | 3 | Peridotite | Host | |
| Schist-Unsubdivided | 4 | Tlc-Chl; Tlc-C | Contains |
Dec 07, 2005 (R Degagne) - The area was mapped by Tanton (1938) and Hodgkinson (1968) who both noted the talc occurrence. The area is underlain by mafic metavolcanics intruded by gabbroic rocks. Talc-bearing chlorite schist was noted near the shoreline of the lake and about 200 m inland. Talc-carbonate schist, interpreted to be metaperidotite, is noted in drill logs by Falconbridge Nickel Mines Ltd. from exploratory drilling carried out in 1974 in the vicinity of the occurrence (Resident Geologists Files, MNDM, Thunder Bay).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Talc | Economic | Ore | ||||
| 1 | Chlorite | Economic | Gangue | ||||
| 2 | Carbonate | Economic | Gangue | ||||
| Talc | Alteration | Steatization | 1 | ||||
| Chlorite | Alteration | Steatization | 2 | ||||
| Carbonate | Alteration | Carbonatization | 3 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown |
Date: Mar 05, 1997
Geologist: R Degagne
Notes: Outcrop is limited in the vicinity of the occurrence. Talcose rocks occur near the shore and approximately 200 m south of the shore. There is no evidence of work on the soapstone at the site.
Map - Shebandowan area, Thunder Bay District, Ontario
Publication Number: Map 338A Scale: 1:63,360 Date: 1938
Author: Tanton, T L
Publisher Name: Geological Survey of Canada
MonoMap - Geology of the Kashabowie area, District of Thunder Bay
Publication Number: R053 Scale: Date: 1968
Author: Hodgkinson J.M.
Publisher Name: Ontario Dept. of Mines
Mono - Soapstone in Ontario
Publication Number: OFR5764 Scale: Date: 1991
Author: Gerow M.C., Sherlock E.J., Bellinger J.A.
Publisher Name: Ontario Geological Survey
Book - ASSESSMENT FILES
Publication Number: N/A Scale: Date: 1997
Author:
Publisher Name:
Book - RES. GEOL. FILES
Publication Number: N/A Scale: Date: 1997
Author:
Publisher Name:
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