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Ontario Geological Survey
Permanent Link to this Record:
MDI42C02SW00015
| Record Name(s) | Molybdenite Lake Prospect - 1939, Canfield Molybdenite Property - 1939 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Jul-22 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Molybdenum
Township or Area: Andre
Latitude: 48° 2' 52.32" Longitude: -84° 57' 8.47"
UTM Zone: 16 Easting: 652600.45 Northing: 5323648.72 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02SW
Point Location Description: Trenches on the south side of Molybdenite Creek
Location Method: Data Compilation
Access Description: The site is accessible by driving east along a series of disused forestry access roads from highway 17.
Pre-1905 - trenching. 1939: Superior Molybdenum Co. Ltd. - trenching, sampling, mapping, ground geophysics, 4 ddh. 1958: International Ranwick Mines Ltd. - sampling. 1964: Algoma Central Railway - mapping, ground geophysics, sampling. 1964-65: Inco Exploration Ltd. - soil sampling, mapping, stripping and blasting; 4 ddh (1534 ft).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| ANDRE 0012 | 42C02SW0016 | 42C02SW0016 |
| ANDRE 0011 | 42C02SW0519 | 42C02SW0519 |
| 63A.493D, Andre-0010 | 42C02SW8817 | 42C02SW8817 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Trondhjemite-Granodiorite | Host |
Dec 07, 2005 (A Wilson) - The molybdenite is associated with a large scale network of discontinuous to stockwork like milky-white quartz veins. The veins range from a few cm to 1.2 m in width and can be traced fro lenths of up to 25 m and intrude and have silicified trondhjemite-granodiorite gneiss.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - The veins vary from 1 in to 4 ft wide and are somewhat discontinuous in length. Molybdenite is usually associated with quartz veins. Massive molybdenite often is found along slips and seams but is rarely found in the massive quartz or granite. The sludges taken from the 1939 drill holes gave an average of 0.25% MoS. The diamond drill core returned assays of 0.26% Mo over 10 ft. samples from the trenches returned 0.26% Mo over 100 ft; 0.43% Mo over 66 ft; 1.41% Mo over 50 ft. Chip samples collected by International Ranwick in 1958 returned assays of 0.27% Mo over 6 ft; 0.29% Mo over 8 ft; 0.02% Mo over 6 ft; 0.03% Mo over 7 ft. Approximately 120 tons of ore was removed from the site in 1939 and the average grade of the shipment of 0.5% Mo.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 76.2 | 13.2 | 40 |
Map - Geological series, Precambrian geology of the Molybdenite Lake area covering parts of Andre and Bailloquet townships, Algoma District
Publication Number: P2406 Scale: 1:15,840 Date: 1981
Author: Mandziuk Z.L., Studemeister P.A.
Publisher Name: Ontario Geological Survey
Location:
Book - Andre Township - unpublished GDIF
Publication Number: GDIF Date: 1985
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
Book - Molybdenum deposits of Canada; Geological Survey of Canada, Economic Geology Report 20
Publication Number: Econ Geol 20 Page: 81 Date: 1963
Author: Vokes, F.M.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/103994
Mono - Molybdenum deposits of Ontario
Publication Number: MDC007 Page: 17 Date: 1968
Author: Johnston F.J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 122 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Part - Iron ranges of Michipicoten West
Publication Number: ARV14-01.012 Page: 305 Date: 1998
Author: Bell J.M.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Molybdenite deposits of Ontario
Publication Number: ARV26.011 Page: 305 Date: 1998
Author: Parsons A.L.
Publisher Name: Ontario Bureau of Mines
Location:
MonoMap - Molybdenite Lake area (covering parts of Andre and Bailloquet townships), District of Algoma
Publication Number: OFR5350 Page: 38-40 Date: 1981
Author: Mandziuk Z.L.
Publisher Name: Ontario Geological Survey
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 73 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office