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Ontario Geological Survey
Permanent Link to this Record:
MDI000000000286
| 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
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.
| 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
Mar 30, 2007 (Mark Puumala) - The area geology is described in MDI52O12SE00012.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Contains | ||
| Granitoid-Unsubdivided | 3 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Galena | Economic | Ore | ||||
| Silica | Alteration | Silicification | 1 | ||||
| Carbonate | Alteration | Carbonatization | 2 | ||||
| Chlorite | Alteration | Chloritic | 3 |
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.
| Rank | Classification |
|---|---|
| 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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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office