Ontario Geological Survey
Permanent Link to this Record:
MDI52L16NE00037
| Record Name(s) | Muskrat Bay South - 1966 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Mar-12 |
| Date Last Modified | 2023-Aug-25 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Secondary Commodities: Silver, Zinc
Township or Area: Mulcahy
Latitude: 50° 59' 42.29" Longitude: -94° 11' 12.33"
UTM Zone: 15 Easting: 416718 Northing: 5649948 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52L16NE
Point Location Description: DDH with Cu, Ag, Zn on OGS map M2295
Location Method: Data Compilation
Access Description: 26 Km West of Red Lake. Access by Flat lake road or by boat from Red Lake
1966: Cochenour Explorations Ltd. drilled three holes in the area for a total of 268.1 m. 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
Dec 07, 2005 (K R Kettles) - GEOLOGICAL DESCRIPTION: 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 mineral assemblages are present in the metavolcanics. The iron formation units vary from approximately 6 to 20 m in thickness, and dip nearly vertically. Mafic intrusives, consisting primarily of gabbro are present in the area. DEPOSIT DESCRIPTION: Drill hole #TB66-86 intersected a thick iron formation unit from 33.3 m to 58.6 m. This unit is described as chert, banded with about 15% magnetite and some amphibolite. Sulphides in the unit consist primarily of pyrrhotite.
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Iron Formation | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent | ||
| Gabbro | 3 | Gabbro | 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 mineral assemblages are present in the metavolcanics. The iron formation units vary from approximately 6 to 20 m in thickness, and dip nearly vertically. Mafic intrusives, consisting primarily of gabbro are present in the area. Drill hole #TB66-86 intersected a thick iron formation unit from 33.3 m to 58.6 m. This unit is described as chert, banded with about 15% magnetite and some amphibolite. Sulphides in the unit consist primarily of pyrrhotite.
| 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 | Magnetite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 5 | Pyrrhotite | Economic | Ore | ||||
| 6 | Sphalerite | Economic | Ore | ||||
| 1 | Chert | Economic | Gangue |
Dec 07, 2011 (K R Kettles) - MDI1 DATA: GRADE 1966 DDH-TB-66-86: 5.2 M SECTION OF IF AVERAGES 0.1 OPT AG, 0.2% CU, 0.05% ZN A 5.2 m section of the iron formation returned average assays(?) >/ton Ag, 0.2% Cu and 0.05% Zn. Drill hole #TB66-86 intersected a thick iron formation unit from 33.3 m to 58.6 m. This unit is described as chert, banded with about 15% magnetite and some amphibolite. Sulphides in the unit consist primarily of pyrrhotite.Grab/Trench samples: 70-80 ppm CU, 60-80 ppm Zn, Described as pillow basalf, confederation assemblage, v. fine grain, light green weathering
Dec 07, 2005 (K R Kettles) - Minor carbonate veining.
File - Resident Geologist file RL 1511 (Mulcahy #10)
Publication Number: Date:
Author:
Publisher Name:
Location: Red Lake RGP office
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 614-615 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
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