Ontario Geological Survey
Permanent Link to this Record:
MDI41N07SE00005
| Record Name(s) | Ottawa Associates - 1968, J.G. McComb - 1968 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Sep-01 |
| Date Last Modified | 2022-Sep-12 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Township or Area: Labelle
Latitude: 47° 22' 5.75" Longitude: -84° 38' 49.56"
UTM Zone: 16 Easting: 677643.799 Northing: 5248773.612 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N07SE
Point Location Description: Stripping
Location Method: Conversion from MDI
Access Description: 600 metres north of Highway 17, 2.6 kilometres west of the east boundary of Labelle Township with Lake Superior Provincial Park.
1949: A geological survey combined with geiger-counter exploration and some stripping was undertaken for the Ottawa Associates. 1956: Nine holes totalling 390 feet were drilled by the Ottawa Associates. This occurrence is now situated within Lake Superior Provincial Park.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Labelle-0012 | 41N07SE0019 | 41N07SE0019 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
Dec 07, 2005 (P Beach) - Radioactivity in fractures and fault breccia along the contact of a Keweenawan diabase dike and Early Precambrian granite. Pitchblende mineralization was found in a shear zone 2 to 8 inches wide and exposed for a length of 184 feet. Fractures up to 10 feet long branch from the main shear zone into the diabase and granite. Assays from 8 grab samples averaged 3.97 % U3O8. (OGS 1983 MDC 25 P 34).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pitchblende | Economic | Ore |
Date: Sep 07, 1999
Geologist: G Bennett
Notes: Uranium mineralization is found present on claims 18623 and 18624 and there is evidence of its probable deposition on claim 18079. The known ore zone occurs along a diabase, granite-gneiss contact and is associated with fault breccia. The zone varies from two to eight inches in width, and is in evidence for the total 184 feet that have been uncovered along the contact with both ends open. Fractures from the main zone are found angling both into the diabase and granite and these carry uranium values. The finding of 'float', in the creek bottom, which showed sheering and contained considerable calcite and hematite and also was somewhat radioactive strongly suggests that exploration at this point (660 feet north-east of he Base line on E line) would uncover a uranium bearing mineralization along the hanging wall of the dyke. The pitchblende has probably been deposited from hydrothermal solutions derived from the main parent magma responsible for the diabases. The botryoidal form taken by the pitchblende in its surface outcrops may be due to secondary alterations and confined to the limits of the ground water table. The uranium bearing vein, as presently exposed, is confined to the hanging wall contact of the dike and short (up to 10 feet in length) branch veins in the biabase and granite that angle off the main vein at oblique angles. It would appear that the best vein areas are those portions between the diabase and granite, as in contrast to the diabase-gneiss wall and the granite-gneiss complex that gneiss tended to flow rather than fracture, as did the granite, and this conidtion was not advantageous to later deposition of pitchblende which found a more ready and hospitable host in the well fractured granite.
Map - Geological series, Precambrian geology, Batchawana synoptic project, Agawa Bay sheet, District of Algoma
Publication Number: P3059 Scale: 1:50,000 Date: 1987
Author: Grunsky E.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Canadian deposits of uranium and thorium, Economic Geology Series 16
Publication Number: GSC EconGeol 16 Page: 131 Date: 1952
Author: Lang, A.H.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102450
Map - Geological compilation series, Batchawana sheet, districts of Algoma and Sudbury, Sault Ste. Marie Mining Division
Publication Number: P0302 Scale: 1:126,720 Date: 1997
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Sault Ste. Marie-Elliot Lake sheet, geological compilation series, Algoma, Manitoulin and Sudbury districts
Publication Number: M2108 Date: 1967
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC009 Page: 26-27 Date: 1968
Author: Robertson J.A.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Sault Ste. Marie-Elliot Lake, geological compilation series, Algoma, Manitoulin and Sudbury districts
Publication Number: M2419 Scale: 1:253,440 Date: 1979
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC025 Page: 34 Date: 1984
Author: Robertson J.A., Gould K.L.
Publisher Name: Ontario Geological Survey
Location:
Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 147 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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