Ontario Geological Survey
Permanent Link to this Record:
MDI52O09SE00010
Record Name(s) | Crowshore Patricia A-2 - 1948, Tarp Lake # 3 - 1990 |
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Related Record Type | Simple |
Related Record(s) | |
Record Status | Occurrence |
Date Created | 1990-Nov-29 |
Date Last Modified | 2022-Jul-14 |
Created By | |
Revised By |
Primary Commodities: Gold
Township or Area: McCullagh
Latitude: 51° 31' 53.19" Longitude: -90° 1' 1.24"
UTM Zone: 15 Easting: 706893.76 Northing: 5713144.56 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O09SE
Point Location Description: General
Location Method: Conversion from MDI
1937-1938: Surface exploration and diamond drilling by Crowshore Gold Mines. 1944: Surface exploration by Crowshore Patricia Gold Mines. 1945-1947: Exploration shaft sunk and underground exploration carried out by Crowshore Patricia Gold Mines. 1979-1980: Geophysical surveys by Prospecting Geophysics Ltd. 1981: Diamond drilling by Gallant Gold Mines.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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52O09SE0037 | 52O09SE0128 | 52O09SE0128 |
52O09SE-0014-C1 | 52O09SE0404 | 52O09SE0404 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Pickle Lake
Geological Age: Mesoarchean
Dec 21, 2006 (Mark Puumala) - The geology of the Pickle Crow area is described in MDI52O09SE00007.
Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
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Mafic lava flow-unsubdivided | 2 | Adjacent | ||
Vein | 3 | quartz | Host |
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Arsenopyrite | Economic | Ore | ||||
2 | Sphalerite | Economic | Ore | ||||
3 | Chalcopyrite | Economic | Ore | ||||
4 | Pyrite | Economic | Ore | ||||
5 | Pyrrhotite | Economic | Ore | ||||
6 | Magnetite | Economic | Ore |
Dec 21, 2006 (Mark Puumala) - The A-2 Occurrence is based on the reported intersection of anomalous gold values in two diamond drill holes (A-1 and A-2) that were drilled at this location by Crowshore Patricia Gold Mines in 1948. The diamond drill hole logs indicate that the anomalous gold values occurred in cherty, sulphidized iron formation (AFRI# 52O09SE0404). The most favourable reported assay was 0.18 oz/ton Au over 0.37 m from ddh A-2. An anomalous assay of 4.08 g/t was reported from a diamond drill hole (249-1) advanced in the same area by Dome Exploration in 1985, however, a second analysis of this sample only returned trace quantities of gold. Hodge (1981) reports a single diamond drill intersection of 0.22 oz/ton Au over 1.1 m in Gallant Gold Mines ddh G-P-81-6. This gold mineralization was reported from a section consisting of sulphidized iron formation and quartz. The iron formation was reported to contain over 30% sulphides, including pyrrhotite, arsenopyrite (2-3%), sphalerite (1%), and chalcopyrite (<1%), while the quartz vein was reported to contain 20% sulphides.
Rank | Classification |
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1 | Lode (Gold) |
2 | Replacement |
Rank | Characteristic |
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1 | Stratabound |
2 | Vein |
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office