Ontario Geological Survey
Permanent Link to this Record:
MDI41N07NE00002
| Record Name(s) | Franz - 1968, J.G. McCombe - 1968 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Sep-01 |
| Date Last Modified | 2023-May-26 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Secondary Commodities: Niobium
Township or Area: Labelle
Latitude: 47° 22' 51" Longitude: -84° 42' 11.53"
UTM Zone: 16 Easting: 673366.863 Northing: 5250043.736 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N07NE
Point Location Description: Trenching
Location Method: Conversion from MDI
Access Description: 100 metres south of the shore of Lake Superior, 500 metres west of Highway 17, 2.25 kilometres south of the north boundary of Labelle Township, with Lake Superior Provincial Park.
1951: Trenching and geological and scintillometer surveys were performed by Highland Prospecting Syndicate. 1975: The occurrence now lies within Lake Superior Provincial Park.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Labelle-0011 | 41N07NE0003 | 41N07NE0003 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pitchblende | Economic | Ore | ||||
| 2 | Uraninite | Economic | Ore | ||||
| 3 | Ellsworthite | Economic | Ore | ||||
| 1 | Calcite | Economic | Gangue | ||||
| 2 | Hematite | Economic | Gangue |
Dec 07, 2005 (P Beach) - Radioactive mineralization occurs at or near the north contact of a Keweenawan diabase dike cutting an Early Precambrian granite-gneiss complex. The Franz dike strikes N35W and dips steeply NE. Pitchblende and uraninite are associated with a breccia zone caused by faulting along the north contact of the Franz dike and by cross-faulting in the diabase. The pitchblende is associated with calcite and secondary hematite and is beleived to be of hydrothermal origin. Mineralization is also associated with fractures in the diabase and occurs in narrow zones up to 6 inches wide. A channel sample taken over 3.5 feet across a fracture zone assayed 0.80 U3O8 (radiometric equivalent) (OGS 1983 MDC 25 P 33-34).
Date: Sep 07, 1999
Geologist: G Bennett
Notes: Very favourable is associated with the uranium mineralization on the property. The Franz dike, with which the deposition of pitchblende is associated, has been affected by two fault movements with, in each case, subsequent deposition of uranium bearing mineralization. The first faulting took place along the north contact of the dyke, close to the lake, where it had been already bent into the north by local rock adjustment and continued along the contact for some seven hundred and fifty feet to the eastern extremity of the fold where it entered the main diabase persisting in its general strike of N25W and possibly being responsible for the shear zone north of 17+00 SE on the base line. THe economic minerals present are pitchblende and probably associated uraninite. The pitchblende occurs associated with calcite and secondary hematite, and was deposited by aqueous low temperature solution eminating, it is believed, by some parent magma that was responsible for the diabase. Two types and ages of veins are presently found on the property. The first and oldest is the 'breccia zone' vein which follows the north contact for approximately seven hundred and fifty feet and persists, as evidence suggests, into the main diabase itself. This vein varies from a few inches to a maximum width of ten feet. A shear zone in the diabase, paralleling and 25 feet north of he south contact was opened up. A channel sample taken over 3.5 feet across a fracture zone showed 0.80 percent U3O8. Another sample over 2.5 feet assayed 0.0002 percent U3O8.
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: 128 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:
Part - Geology of the Montreal River area
Publication Number: ARV64-03 Page: 20-21 Date: 1997
Author: Nuffield E.W.
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: MDC009 Page: 26 Date: 1968
Author: Robertson J.A.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Columbium (niobium) deposits of Ontario
Publication Number: MDC014 Page: 45 Date: 1971
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC025 Page: 33-34 Date: 1984
Author: Robertson J.A., Gould K.L.
Publisher Name: Ontario Geological Survey
Location:
Publication - A Catalogue of Canadian Minerals; Geological Survey of Canada, Paper 69-45
Publication Number: Paper 69-45 Page: 447 Date: 1972
Author: Traill, R J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102924
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: 146 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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