Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000286

Record: MDI000000000286


Mineral Record Identification
Record Name(s) Sample 2211 - 1986
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2007-Mar-30
Date Last Modified 2022-Jun-08
Created By
Revised By


Primary Commodities: Silver, Lead


Township or Area: Stoughton Lake Area

Latitude: 51° 35' 20.06"    Longitude: -91° 30' 6.95"

UTM Zone: 15    Easting: 603779.997   Northing: 5716380.001    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52O12SE

Point Location Description: Assessment file map (Weidner 1987).

Location Method: Data Compilation

Exploration History

1960: Diamond drilling by Castlebar Silver & Cobalt Mines in the area between Lang Lake and Saddle Lake. 1968-1972: Bochawna Copper Mines Ltd. and the Hanna Mining Company conducted an extensive exploration program in the area north of Lang Lake, including a diamond drilling program that outlined a copper deposit. 1969-1971: The Algoma Steel Corporation Ltd. conducted extensive diamond drilling and geophysics in northwest of Lang Lake for iron ore. 1969-1970: Card Lake Copper Mines Limited conducted grid mapping geophysics and diamond drilling for gold and base metals in the Saddle Lake, Boyes Lake, Card-Cannon Lakes, and Heinz Lake areas. 1970: Mextor Mineral Ltd. and Kennco Exploration Limited conducted geophysics and diamond drilling for base metals in the Saddle Lake area. 1984-1986: Duration Mines conducted geophysics, grid mapping and diamond drilling on the southern arm of the Lang Lake greenstone belt for base metals mineralization. 1985-1986: Geological, geochemical and geophysical surveys in the western Lang Lake area by Utah Mines. 1991-1992: Noranda Exploration Company Limited conducted grid mapping, geophysics and diamond drilling for base metals in the Lang Lake and Saddle Lake areas. 2003-2007: East-West Resource Corporation conducted geological and geophysical surveys and diamond drilling of the Lang Lake copper deposit.

Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.11008 52O12NE0001 52O12NE0001


Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Lang Lake

Geological Age: Neoarchean  

Geology Comments

Mar 30, 2007 (Mark Puumala) - The area geology is described in MDI52O12SE00012.


Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Host
Intermediate lava flow-unsubdivided 2 Contains
Granitoid-Unsubdivided 3 Adjacent


Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style

Mineralization Comments

Mar 30, 2007 (Mark Puumala) - This occurrence is reported by Weidner (1987) to be located within an approximately 10 m wide shear zone hosted within a sequence of mafic to intermediate metavolcanic rocks. The shear zone orientation is approximately 320/90. The shear zone contains numerous narrow quartz veins (<5 cm) that are oriented parallel to the shear zone boundaries. These veins are reported by Weidner (1987) to be mineralized with up to 10% sulphides. Alteration within the shear zone is reported to consist of carbonatization, silicification and chlorite. The shear zone is cross-cut by a felsic dike that is reported by Weidner (1987) to exhibit extensive carbonate (possibly ankerite) alteration. The intrusive contact is reported to be oriented approximately 050/80. The felsic dike also is reported by Weidner (1987) to contain significant quartz veining, with two sets of narrow (<5 cm) stringers that strike approximately 045 and 320. Up to 2% disseminated pyrite is reported to occur within these quartz stringers. A grab sample of quartz vein material from this location is reported by Weidner (1987) to have assayed 297 ppm Ag and >10,000 ppm Pb.

Mineral Record Details

1 Vein (Polymetallic)
Rank Characteristic            
1 Vein


Book - Report on Field Activities Summer - 1986, McVicar Lake Property (Long Lake Area), 48p.

Publication Number: AFRI52O12NE0001 Date:

Author: Weidner, S.O. 1987.

Publisher Name:

Location: Thunder Bay RGP

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Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office