Ontario Geological Survey
Permanent Link to this Record:
MDI42E03NE00002
| Record Name(s) | Chorus Lake Molybdenum Occurrence - 1970 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Apr-01 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Molybdenum
Township or Area: Bray Lake Area
Latitude: 49° 14' 3.74" Longitude: -87° 10' 25.46"
UTM Zone: 16 Easting: 487352 Northing: 5453525 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42E03NE
Point Location Description: Roadside outcrop
Location Method: Data Compilation
Access Description: The occurrence is located about 27 km northeast of Dickison Lake and about 1200 m southwest of Chorus Lake. The property may be reached via the Kimberly Clark access road from Geraldton or Terrace Bay.
1970: Geological mapping. The occurrence was discovered during this work.
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Oct 06, 2014 (D McKay) - Carter shows the area as being underlain by metasedimentary migmatite and grey biotite granite. He describes the occurrence as follows: This occurrence is at a roadside outcrop about 1 mile south-southwest of the Chorus Lake bridge on the west side of the road. It consists of traces of molybdenite in granite-pegmatite bands 1 inch to 3 inches wide in metasedimentary migmatite.
| Rock Type | Rank | Composition | Texture | Relationship | Diatexite Migmatite | 1 | Metasedimentary Protolith | Contains |
|---|---|---|---|---|
| Pegmatite | 2 | Granitic | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore |
Dec 07, 2005 (D McKay) - The occurrence consists of traces of molybdenite in granite-pegmatite bands 1 inch to 3 inches (2.5 to 7.6 cm) wide in metasedimentary migmatite.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
MonoMap - Geology of the Dickison Lake area, District of Thunder Bay
Publication Number: R123 Scale: Date: 1975
Author: Carter M.W.
Publisher Name: Ontario Division of Mines
Map - Dickison Lake, Thunder Bay District
Publication Number: M2293 Scale: 1:63,360 Date: 1974
Author: Carter M.W.
Publisher Name: Ontario Division of Mines
Map - Mineral deposits series, molybdenum deposits of Ontario, west central sheet, districts of Kenora (Patricia Portion), Thunder Bay, Algoma, and Cochrane
Publication Number: P1245 Scale: 1:1,013,760 Date: 1997
Author: Meyn H.D., Howarth J.R.
Publisher Name: Ontario Geological Survey
Map - Geological series, Operation Rossport, Dickison Lake area, District of Thunder Bay
Publication Number: P0690 Scale: 1:63,360 Date: 1997
Author: Carter M.W.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
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