Ontario Geological Survey
Permanent Link to this Record:
MDI52N04SW00062
| Record Name(s) | McCuaig Red Lake Gold Mines - Shear Zone Occurrence - 1936 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-11 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Dome
Latitude: 51° 5' 14.11" Longitude: -93° 49' 31.79"
UTM Zone: 15 Easting: 442184.271 Northing: 5659851.829 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: Precise/T/DDHS
Location Method: Conversion from MDI
1934 and 1936: McCuaig Red Lake Gold Mines was incorporated to develop property. Performed surface work and diamond drilling. Up to 1937 surface work was performed, 55 trenches had been put in, and 27 drill holes totalling about 1830 m were completed. 1937: Howey Gold Mines optioned property. 1944: 5 drill holes completed totalling 1061.4 m. 1945: Drilled 12 holes totalling 2057.53 m. 1963: Company purchased by Coin Lake Gold Mines, a subsidiary of Cochenour Willans Gold Mines.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (K R Kettles) - The northeastern part of the property is underlain by highly altered and sheared mafic metavolcanic flows. In places, these rocks are so highly carbonatized and/or silicified that it is difficult to recognize them as mafic flows. Thin beds of volcanic breccia, banded chert, slate nad iron formation are locally present between some of the flows. The southern and southwestern portion of the property is underlain by conglomerates, greywackes, and slatey greywackes, which overlie the mafic flows with a pronounced angular unconformity. Masses and dykes of quartz porphyry have been observed in several places on the property. Late diorite dykes are also common. In the southern part of the property, tongues of granodiorite from the McKenzie-Gold Eagle Stock extend northward into the sediments.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Altered | Variolitic, Pillowed, Massive Flows | Adjacent |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Greywacke | Contains | |
| Mylonite/Fault Gouge/Pseudotachylite | 3 | Shear Zone | Contains | |
| Vein | 4 | Quartz | Lenses | Host |
Dec 07, 2005 (K R Kettles) - The altered mafic metavolcanic flows have been observed to be variolitic pillowed flows and massive flows in places. They contain interflow units of volcanic breccia, banded chert, slate, and iron formation.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | ||||
| Silica | Alteration | Silicification | 2 |
Dec 07, 2005 (K R Kettles) - A narrow 0.46 m shear zone in greywacke contains quartz lenses with a maximum width of 15 cm. The lenses contain some pyrite. Surface samples have returned values as high as 0.57 opt Au. Assays of drill core samples as high as 0.10 opt Au have been reported.
Dec 07, 2005 (K R Kettles) - The country rocks have been silicified and carbonatized.
File - Red Lake Resident Geologists Files 1945-66 Dome #23
Publication Number: AF RL Date: 1945
Author:
Publisher Name:
Location: Red Lake RGP
Part - Geology and mineral deposits of the Red Lake area
Publication Number: ARV49-02 Page: 155-156 Date: 1998
Author: Horwood H.C.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Dome Township, District of Kenora
Publication Number: R045 Page: 72-73 Date: 1997
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 422-423 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
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