Ontario Geological Survey
Permanent Link to this Record:
MDI52L16NE00002
| Record Name(s) | Cochenour-Muskrat Bay - 1966, Muskrat Bay South - 1966 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1979-Apr-04 |
| Date Last Modified | 2023-Aug-25 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Silver
Secondary Commodities: Gold, Zinc
Township or Area: Mulcahy
Latitude: 51° 0' 6.37" Longitude: -94° 11' 22.34"
UTM Zone: 15 Easting: 416535 Northing: 5650695.01 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52L16NE
Point Location Description: Sample locations from Assessment report 52M01SE2013
Location Method: Data Compilation
Access Description: 26 Km West of Red Lake. Access by Flat lake road
1966: Cochenour Explorations Ltd. drilled three holes in the area for a total of 268.1 m. 1990: Inco Exploration conducted magnetometer and HLEM surveys. 2000: Reconnaissance mapping and geochemical sampling programme was initiated on the property, the results from this integrated exploration resulted in the implementation of a stripping, sampling and detailed mapping project and drilling programme was completed in the fall of 2000 by Goldcorp Inc.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Mulchay Ball Twps. 2.21430 | 52M01SE2013 | 52M01SE2013 |
| Mulcahy #14 2.13700 | 52M01SE0207 | 52M01SE0207 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Amphibolite
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Iron Formation | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 1 | Adjacent |
Dec 07, 2005 (K R Kettles) - The occurrence is located close to the western edge of the Killala-Baird batholith, within a series of thin, north-south striking units of mafic metavolcanics and iron formation. Due to the proximity of the batholith, the metamorphic grade is quite high, and amphibolite grade material assemblages are present in the metavolcanics. The iron formation units vary from approximately 6 to 20 m in thickness, and dip nearly verticaly. Mafic intrusives, consisting primarily of gabbro are present in the area. Drill hole #TB66-87 intersected two iron formation units, both approximately 6 to 7 metres in width (intersection width). These units are described as cherty, containing amphibole, biotite and sulphides (5% pyrite, 2% pyrrhotite, minor chalcopyrite).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore | ||||
| 5 | Sphalerite | Economic | Ore | ||||
| 1 | Chert | Economic | Gangue |
Nov 07, 2014 (K R Kettles) - The iron formation units returned consistent assays for silver of 0.1 oz/ton (3.429 g/tonne) and copper values ranged from 0.03 to 0.1% Drill hole #TB66-87 intersected two iron formation units, both approximately 6 to 7 metres in width (intersection width). These units are described as cherty, containing amphibole, biotite and sulphides (5% pyrite, 2% pyrrhotite, minor chalcopyrite). 2000 - Grab/Trench samples: 70-80 ppm Cu, 60-80 ppm Zn, Described as pillow basalt, confederation assemblage, v. fine grain, light green weathering
Jul 14, 2020 (Therese Pettigrew) - Sample TB-2000-035 returned 0.39 ppm Au, 1900 ppm Cu, 160 ppm Ni, and 180 ppm Zn from an iron formation. Sample TB-2000-036 returned 400 ppm Cu, and 920 ppm Zn from an iron formation (Assessment report 52M01SE2013).
File - Resident Geologist files Mulcahy #10 RL 1511
Publication Number: Date:
Author:
Publisher Name:
Location: Red Lake RGP office
Map - Mulcahy Township, Kenora District
Publication Number: M2295 Scale: 1:12,000 Date: 1976
Author: Riley R.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 612-613 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
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