Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52A03NE00002

Record: MDI52A03NE00002

General

Mineral Record Identification
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

Commodities

Primary Commodities: Zinc, Lead

Secondary Commodities: Silver



Location

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



Exploration History

1875-77: two shafts to a depth of 200 feet, three levels, and three crosscuts


Geology

Province: Southern

Subprovince: Nipigon Basin

Formation Group: Sibley Group

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Terrigenous-Clastic-Unsubdivided 1
Vein 2

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GalenaEconomicOre
2SphaleriteEconomicOre
3PyriteEconomicOre
1QuartzEconomicGangue
2CalciteEconomicGangue

Mineralization Comments

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).



Mineral Record Details

References

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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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office