Ontario Geological Survey
Permanent Link to this Record:
MDI52H01SW00002
| Record Name(s) | Tessier-Williamson - 1985, Black Sturgeon River - 1955 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1985-Jun-03 |
| Date Last Modified | 2022-Jul-15 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Township or Area: Hele
Latitude: 48° 59' 53.42" Longitude: -88° 29' 8.27"
UTM Zone: 16 Easting: 391335 Northing: 5428316 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52H01SW
Point Location Description: Approximate, based on a description from J. Scott in 2022 (pers. comm).
Location Method: Conversion from MDI
Access Description: The Hele Township or Tessier-Williamson Occurrence is located in the north half of Hele Township, approximately 500 m north of the Black Sturgeon River.
No assessment reports on file.
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | dyke | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Uranophane | Economic | Ore | ||||
| 5 | Pyrochlore | Economic | Ore |
Jun 21, 2017 (B Schnieders) - Pye (1955) describes this occurrence as follows: 'The deposit consists of a number of radioactive granitic dikes in granite gneisses. The main dike strikes east-west and dips 40 degrees N. It is highly radioactive, is stained yellowish and ranges from 2 to 8 feet in horizontal thickness. Bordering the dike on the two sides are radioactive altered zones up to 25 feet in horizontal width. The radioactive dikes are on claim TB67087-89 and TB67096. A grab sample obtained by Pye (1955) assayed 0.096 % U3O8. A grab sample collected by Scott (1987) in 1982 assayed 680 ppm uranium and 20 ppm thorium (Scott, 1987).
Jul 15, 2022 (Therese Pettigrew) - From former OGS staff member J. Scott: "I recall, after climbing to the top of the scarp (655 feet above the river) I walked what seemed forever along the edge of the scarp. It was getting late in the day and I had about 1.5 hours to get back to the canoe I had stashed on the river. Then I saw one more outcrop through the trees just before I was going to turn back, but decided to go to it. And the pegmatite was covered in yellow uranophane, a claim post. So I took some quick pictures, and a couple of samples. It seemed to me that the old claim map was wrong and it was out by more than a claim length. Pye said the showing extends through several claims (those shown) but I only found the o/c at the scarp's edge where the #2 post for TB 67096 was located in the bush. The claim map location for the post might be in error" (pers. comm, 2022).
Map - Shillabeer Creek sheet, Thunder Bay District
Publication Number: M2236 Scale: 1:63,360 Date: 1971
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC025 Page: 131 Date: 1984
Author: Robertson J.A., Gould K.L.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium occurrences of the Thunder Bay-Nipigon-Marathon area
Publication Number: OFR5634 Page: 143-144 Date: 1987
Author: Scott J.F.
Publisher Name: Ontario Geological Survey
Location:
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