Ontario Geological Survey
Permanent Link to this Record:
MDI52H09NE00007
| Record Name(s) | Bish Bay - West Bay Asbestos - 1983, Kimberley Copper - 1983 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1983-Jan-28 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Asbestos
Township or Area: Dorothea
Latitude: 49° 41' 59.56" Longitude: -88° 6' 16.19"
UTM Zone: 16 Easting: 420353 Northing: 5505848 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52H09NE
Point Location Description: Peridotite dyke on OGS map M2294
Location Method: Data Compilation
No assessment reports were found on file.
Province: Superior
Subprovince: Wabigoon
Belt: Beardmore-Geraldton
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Massive And Pillowed Basalts |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | |||
| Granitoid-Unsubdivided | 3 | Dykes | ||
| Peridotite | 4 | Peridotite Dyke | Is |
Sep 27, 2019 (Therese Pettigrew) - The area is underlain by east-trending, metamorphosed, folded and faulted Archean volcanic and sedimentary rocks. The metavolcanics range from massive and pillowed mafic lavas to intermediate and felsic pyroclastics. The metasediments consist of conglomerate, sandstone, siltstone, argillite, and minor iron formation. At this locality, light green asbestos occurs in a 20-foot long zone along fractures in a serpentinized peridotite dyke (Smith et al., 1982).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Tremolite | Economic | Ore |
Sep 27, 2019 (Therese Pettigrew) - The fibrous material has been identified as tremolite by the Mineral Research Branch of the Ontario Division of Mines. The fibres are soft and flexible and are up to 5 inches long (Smith et al., 1982). No assays were reported.
Map - Dorothea, Sandra and Irwin townships, Thunder Bay District
Publication Number: M2294 Scale: 1:31,680 Date: 1974
Author: Mackasey W.O.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of Dorothea, Sandra, and Irwin townships, District of Thunder Bay
Publication Number: R122 Scale: Date: 1975
Author: Mackasey W.O.
Publisher Name: Ontario Division of Mines
Location:
Mono - Industrial minerals of northern Ontario-supplement 1
Publication Number: OFR5388 Scale: Date: 1982
Author: Vos M.A., Abolins T., Smith V.
Publisher Name: Ontario Geological Survey
Location:
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