Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41N14NE00014

Record: MDI41N14NE00014

General

Commodities

Primary Commodities: Tungsten

Secondary Commodities: Gold, Molybdenum

Location

Township or Area: Franchere

Latitude: 47° 57' 37.54"    Longitude: -85° 6' 9.98"

UTM Zone: 16    Easting: 641630.17   Northing: 5313643.85    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41N14NE

Point Location Description: OGS Map P.3157; Figure 26 OFR 5774

Location Method: Based on Assessment

Access Description: The property is accessible by boat from Lake Superior. The occurrence is situated on the coast, approximately 7.2 km east of the mouth of the University River.

Exploration History

The property was discovered by Mr. Fenlon in the early 1940's. 1943: Algoma Ore Prperties - mapping. In 1952 it was optioned from L. Moyd by the Crane Company - 52 ddh (2741 ft), trenching stripping and detailed mapping was completed. Additional diamond drilling (2 ddh) was completed in 1988 by Villeneuve Resources Ltd.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Geological Age: Neoarchean   Geochronological Age: 2721 MA   Geochron. Age Ref.: GOO VOL 1 P. 504

Geology Comments

Dec 07, 2005 (A Wilson) - The main zone of the occurrence is about 9 m wide and extends from the shore of Lake Superior for about 400 m in a N34W direction. The zone is made up of a series of irregualr quartz veins up to 8 m wide. These scheelite bearing veins are separated by septa of schistose conglomerate. Interesting, but uneconomic grades of tungsten have been reported from this occurrence.

Lithology

Lithology Comments

Dec 07, 2005 (A Wilson) - The series of scheelite-bearing quartz veins is enclosed in a schitose conglomerate. The conglomerate has been metamorphosed to dark-green to black quartz-biotite schist and quartz-hornblende schist containing subrounded boulders of trondhjemite and lenses of quartzose schist. The conglomerate is an enclave surrounded by the granitoid rocks of the Pukaskwa Batholith. The enclave is approximately 30-40 m wide at the shoreline and pinches out about 2 km north.

Mineralization

Mineralization Comments

Dec 07, 2005 (A Wilson) - Scheelite occurs as grains, crystals, crystal clusters and veinlets of varying size. The scheelite is present mostly along schist septa in the quartz or at the margin of quartz veins. The distribution of scheelite is erratic. The scheelite is considered to be of high purity. Records estimate that the amount of scheelite present is 0.35% or 3.9 pounds of WO3 per ton. The tonnage is estimated at 790 tons per vertical foot. Grab samples yielded assays of 0.01 - 0.04 oz/t Au.

Mineral Record Details

References

File - Resident Geologist files Franchere-0012-A1, WP Franchere-12

Publication Number: Date:

Author:

Publisher Name:

Location: SSM RGP office

Map - University River, Algoma and Thunder Bay districts

Publication Number: M2333 Scale: 1:63,360    Date: 1976

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Division of Mines

Location:

Map - Precambrian geology, Mishibishu Lake area, Dog Harbour sheet

Publication Number: P3157 Scale: 1:15,840    Date: 1992

Author: Reid R.G., Bowen R.P., Heather K.B., Logothetis J., Reilly B.A.

Publisher Name: Ontario Geological Survey

Location:

Book - Franchere Township - unpublished GDIF

Publication Number: GDIF Date: 1987

Author: Resident Geologist Staff

Publisher Name:

Location: SSM RGP office

Map - Operation Pukaskwa, University River sheet, districts of Thunder Bay and Algoma

Publication Number: P0507 Scale: 1:63,360    Date: 1997

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Operation Pukaskwa, districts of Algoma and Thunder Bay

Publication Number: P0541 Scale: 1:126,720    Date: 1997

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Molybdenum deposits of Ontario

Publication Number: MDC007 Page: 17-18  Date: 1968

Author: Johnston F.J.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Geology of the Pukaskwa River-University River area, districts of Algoma and Thunder Bay

Publication Number: R153 Page: 46-47  Date: 1977

Author: Bennett G., Thurston P.C.

Publisher Name: Ontario Division of Mines

Location:

Mono - Wawa mineral deposits data base

Publication Number: OFR5775 Page: 202  Date: 1991

Author: Frey E.D., Stewart R.C.

Publisher Name: Ontario Geological Survey

Location:

Mono - Geology, structure and economic geology of the Mishibishu Lake area

Publication Number: OFR5774 Page: 149-150, 183-184  Date: 1991

Author: Reid R.G., Bowen R.P., Reilly B.A., Logothetis J., Heather K.B.

Publisher Name: Ontario Geological Survey

Location:

Publication - Tungsten deposits of Canada; Geological Survey of Canada, Economic Geology Series 17

Publication Number: Econ Geol 17 Page: 169  Date: 1959

Author: Little, H.W.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/102451

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: 175  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