Ontario Geological Survey
Permanent Link to this Record:
MDI52A03NE00002
| Record Name(s) | Pie Island - 1875 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1979-Aug-01 |
| Date Last Modified | 2022-Mar-04 |
| Created By | |
| Revised By |
Primary Commodities: Zinc, Lead
Secondary Commodities: Silver
Township or Area: Spar And Victoria Islands Area
Latitude: 48° 13' 25.88" Longitude: -89° 10' 19.25"
UTM Zone: 16 Easting: 338684 Northing: 5343462 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A03NE
Point Location Description: AMIS Shaft location
Location Method: Conversion from MDI
1875-77: two shafts to a depth of 200 feet, three levels, and three crosscuts
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 |
|---|---|---|---|---|
| Vein | 2 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Galena | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Calcite | Economic | Gangue |
Jan 18, 2018 (Therese Pettigrew) - A vein breccia in Rove sediments containing calcite gangue, galena and sphalerite (Shklanka, 1969). The underground developments were made in the vein where it cuts a trap dyke, which intersects the argillites of the vicinity, or immediately adjacent to it. The width of the vein is from 3-4 feet and is filled with a breccia of fragments of the country rock cemented together by crystallized quartz which is mostly colourless but sometimes amethystine, and is accompanied by a little calcite, which occurs mostly crystallized in scalenohedra in the vugs. The great feature of this vein, as shown by an inspection of the dumps, consists in the large amount of metallic minerals it carries. These are zinc blende, galena, and iron pyrite, all occurring for the most part well crystallized, especially in the case of the galena. An assay of such a piece showed it to carry neither gold nor silver. Assay 25 of a specimen selected as carrying a good proportion of galena, free from other metallic minerals gave: gold, none; silver, 0.175 opt. The other numbers: 26 carrying a good proportion of zinc blende mixed with a little galena and 27 consisting nearly altogether of pyrite, gave neither gold nor silver. Some development work has also been done on a large vein on 13 B mining location about a mile ESE of this location. It strikes in from the shore with a course N75W and dips to the north. It is about 12 feet thick, is enclosed in the argillites of the district, and intersects two trap dykes which cut through them (Tanton, 1931).
Map - Atikokan-Lakehead sheet, geological compilation series, Kenora, Rainy River and Thunder Bay districts
Publication Number: M2065 Scale: 1:253,440 Date: 1997
Author: Pye E.G., Fenwick K.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Scale: Date: 1969
Author: Shklanka R.
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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