Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41J10NW00002

Record: MDI41J10NW00002

General

Commodities

Primary Commodities: Copper

Secondary Commodities: Gold, Silver

Location

Township or Area: Sagard

Latitude: 46° 37' 49.85"    Longitude: -82° 47' 53.77"

UTM Zone: 17    Easting: 362347.181   Northing: 5165676.344    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41J10NW

Point Location Description: UTM Zone 17, Northing 5165679, Easting 362351- Two adits. NAD 83, NTS 41J10NW

Location Method: Based on Assessment

Access Description: South shore of Cobre Lake, 2.6 kilometres east of west boundary of Sagard Township. Map 2346 Poulin and Sagard Townships.

Exploration History

1926: Bourke and Mills, staking. Optioned to Peterson Cobalt Mines Limited. 1928: Marcus Daly Estate - stripping. 1928-31: WHITE LAKE MINES LTD., 4000 FT. OF UNDERGROUND DEVELOPMENT THRU 2 ADITS, STRIPPING, DDH'S, RAISES AND TRENCHING. 1943: ALGOMA COPPER MINES LIMITED, 2,200 FT OF SURFACE DDH'S, 1200 FT LENGTH BY 6 FT DEEP TRENCHING, REMOVED 400 TONS OF CU ORE. 1944: Name changed to Bi-Ore Mines Limited. 1947-49: Mine in operation. 1950: Bi-Ore Mines Limited - 11 ddhs- 2,809 feet. 1983: Canamex Resources Inc., 10 surface ddh's and sampling. (Cobre Lake Project)

Assessment Work on File

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Geological Age: Paleoproterozoic  

Geology Comments

Jun 25, 2010 (G Bennett) - The rocks in the vicinity of the mine wokrings consist of gently dipping sediments of Upper Huronian age cut by small amounts of Keweenawan diorite or diabase. Steeply dipping surface drill holes in the vicinity of the west vain show that the country rock is almost entirely bedded cherty quartzite cut bynarrow diabase dikes. A peculiar feature of the quartzite is a spotted alteration identical in apperance to that found in the Huronian sediments of the Cobalt Silver Camp. This green spotted alteration is not confined to any particular beds but appears to be rather uniformly distributed throughout the bedded quartzite. Fragments of the spotted sediments are found in the copper-bearing veins, indicating that the alteration is pre-ore. It does not seem to have any relation to copper mineralization.

Jun 25, 2010 (P Beach) - Fissure filling qtz-carbonate veins containing cp, specularite, bornite and chalcocite cut Proterozoic cherty quartzite (Gordon Lake Formation). Two principle veins, are known as the East and West veins. East vein strikes N80W, dips 90, has a known length of 850 feet, and an average width of from 2.5 to 5.0 feet. It was developed by an adit 1040 feet long. West vein strikes N70E, dips 90, and is developed by an adit 1368 feet long. Crosscuts and some stoping from the West adit.

Lithology

Mineralization

Mineralization Comments

Jun 25, 2010 (S Butorac) - In 1948: 3479 tons ore milled averaged 3.74% Cu and 28.9% Cu produced. In 1949: 9,547 tons ore averaged 4.90% Cu; concentrate averaged 30.85% Cu. In 1983: ddh's by Canamax returned values up to 1200 ppm Cu over 30m.

Mineral Record Details

Site Visit Information

Date: Aug 12, 1999

Geologist: G Bennett

Notes: The veins are fault-fissure fillings and have sharply defined walls. They dip almost vertically and so cut across the flat-lying sediments almost at right angles. The main vein filling is calcite, sometimes in very coarsely crystalline masses, with lesser amounts of quartz. Large vugs and druses are common in the veins. At many places quartz crystals line the walls of the vein. Fault breccias, showing fragments of the wall rock in the vein filling, are widespread. Chalcopyrite and lesser amounts of specularite occur in thecalcite-quartz gangue. Thechalcopyrite is spottily distributed along the veins. In the stope it was noticeable that where the vein narrowed chalcopyrite sometimes occurred across the full width but where it widened chalcopyrite tended to occur near the walls. The main source of ore in the west workings was a vein that branched from the adit vein a few feet above the level; it angled away from the adit going eastward. A short shoot with ore widths up to 25 feet was mined and parts of this were reported to be rich in chalcopyrite. Thesurface open-cut above the stope was opened for a length of 175 feet. The ore was mined by benching and passing it through a raise to the adit level. The vertical distance from the adit level to the surface of the open cut is in excess of 200 feet but the benching was only carried downward about half this distance. In places a 10 foot width of the open-cut would be much less. The is no ore exposed on the west adit level. The east vein outcrops along the top of a ridge that terminates abruptly at a cliff about 100 to 150 feet high near the shore of Cobre Lake. An open cut about 6 feet in depth has been made along the vein for the greater part of its exposed length, which is about 850 feet from the cliff edge. This vein varies from 2 1/2 to 5 feet in width and contains considerable chalcopyrite with accompanying secondary malachite, azurite, and bornite; specularite occurs with the chalcopyrite.

Date: Mar 04, 2000

Geologist: P Beach

Notes: See OGS 1992 MP 158 P 222-223

References

File - Resident Geologist files SSMP Sagard- 03

Publication Number: Date:

Author:

Publisher Name:

Location: SSM RGP office

Map - Poulin and Sagard townships, Algoma District

Publication Number: M2346 Scale: 1:31,680    Date: 1976

Author: Robertson J.A.

Publisher Name: Ontario Division of Mines

Location:

Part - Mines of Ontario in 1928

Publication Number: ARV38-01.003 Page: 80-81  Date: 1997

Author: Sinclair D.G., Cleland R.H., Keeley E.C., Jarrett G.S., Webster A.R.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Township 1A [Sagard Township], District of Algoma

Publication Number: P0610 Scale: 1:15,840    Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Map - Geological compilation series, Blind River-Elliot Lake sheet, districts of Algoma and Sudbury

Publication Number: P0304 Scale: 1:126,720    Date: 1997

Author: Giblin P.E., Leahy E.J., Robertson J.A.

Publisher Name: Ontario Geological Survey

Location:

Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 70-71  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

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 Flack Lake area

Publication Number: ARV48-11 Page: 10  Date: 1997

Author: Harding W.D.

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:

Part - Mines of Ontario in 1949

Publication Number: ARV59-02 Page: 1  Date: 1997

Author: Williams I.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Flack Lake area, District of Algoma, Ontario

Publication Number: ARM48K Scale: 1:63,360    Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:

Publication - Copper deposits and occurrences in the north shore region of Lake Huron, Ontario

Publication Number: Paper 83-28 Page: 30  Date: 1985

Author: Pearson, W N; Bretzlaff, R E; Carrière, J J

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/120312

Mono - Copper, nickel, lead and zinc deposits in Ontario (revised to February, 1957)

Publication Number: MDC002 Page: 74  Date: 1957

Author: Thomson J.E., Ferguson S.A., Johnston W.G.Q., Pye E.G., Savage W.S., Thomson R.

Publisher Name: Ontario Dept. of Mines

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: 105  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999

Compend - Report of activities, 1991, Resident Geologists

Publication Number: MP158 Page: 222-223  Date: 1992

Author: Fenwick K.G., Newsome J.W., Pitts A.E.

Publisher Name: Ontario Geological Survey

Location:

Part - Mines of Ontario in 1947

Publication Number: ARV57-02 Page: 1  Date: 1997

Author: Mines Inspection Branch

Publisher Name: Ontario Dept. of Mines

Location:

Compend - Report of activities, 1983, Regional and Resident Geologists

Publication Number: MP117 Page: 185  Date: 1984

Author: Kustra C.R.

Publisher Name: Ontario Geological Survey

Location:

Part - Mines of Ontario in 1930

Publication Number: ARV40-01.002 Page: 64  Date: 1997

Author: Sinclair D.G., Cleland R.H., Keeley E.C., Cooper D.F., Webster A.R.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Mines of Ontario in 1931

Publication Number: ARV41-01.002 Page: 64  Date: 1997

Author: Sinclair D.G., Cleland R.H., Keeley E.C., Cooper D.F., Webster A.R.

Publisher Name: Ontario Dept. of Mines

Location:

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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office