Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI53C13SE00078

Record: MDI53C13SE00078

General

Commodities

Primary Commodities: Copper, Nickel, Cobalt

Secondary Commodities: Silver

Location

Township or Area: Setting Net Lake Area

Latitude: 52° 48' 45.22"    Longitude: -93° 30' 19.69"

UTM Zone: 15    Easting: 465931.19   Northing: 5851539.54    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 53C13SE

Point Location Description: General

Location Method: Data Compilation

Exploration History

1972: Ecstall Mining - Trenching, geological mapping, geochemical and geophysical surveys and diamond drilling

Geology

Province: Superior

Subprovince: Sachigo

Terrane: North Caribou

Belt: Favourable Lake

Geological Age: Neoarchean  

Lithology

Lithology Comments

Nov 20, 2014 (Mark Puumala) - Ayres (1971) describes this occurrence as consisting of black veins containing variable amounts of brochantite, hematite and quartz. The widest veins are relatively straight, up to 2.5 cm wide, and are generally oriented sub-parallel to a north-trending foliation (Ayres 1972). Additional thin, randomly-oriented veinlets are reported to occur within the host rocks in the areas between the larger veins. Trenching carried out on this occurrence by Ecstall Mining was reported to have exposed the digenite zone over a strike length of approximately 25 m and a width of 3 m (Ayres 1972). Trenching immediately to the west of the digenite zone was reported by Ayres (1972) to exposed a 4.5 m wide chalcopyrite-bering zone. The chalcopyrite is reported to be associated with irregular quartz and calcite veinlets that are both concordant and discordant with foliation. The largest vein strikes east-west, is approximately 25 cm wide and contains up to 50% chalcopyrite. The host rock is a felsic to intermediate metavolcanic (Ayres 1971). The metavolcanics are reported to be altered in the vicinity of the digenite-mineralized veins, with alteration consisting of thin, closely-spaced chlorite-actinolite veins and blebs. Ayres (1971) reported that this alteration zone is cross-cut by a second, later alteration zone, approximately 200 m north of the digenite occurrence. The cross-cutting alteration zone was interpreted to be associated with a major east-southeast-trending fault.

Mineralization

Mineralization Comments

Nov 20, 2014 (Mark Puumala) - Significant assays from this zone include 60.2% Cu and 1.21 oz/ton Ag from a sample collected from one of the 2.5 cm wide digenite veins (Ayres 1971) and 11.1% Cu, 0.17% Co and 0.12% Ni from a sample collected from the 25 cm wide chalocopyrite-bearing vein.

Mineral Record Details

References

File - Resident Geologist files AF RL 1972-73 53C/NW #9

Publication Number: Date: 1996

Author:

Publisher Name:

Location: Red Lake RGP

Map - Geological series, Northwind Lake area, District of Kenora (Patricia Portion)

Publication Number: P0756 Scale: 1:15,840    Date: 1972

Author: Ayres L.D.

Publisher Name: Ontario Division of Mines

Location:

Article - Northwind Lake area, District of Kenora (Patricia Portion)

Publication Number: MP049.001 Page: 3-9  Date: 1997

Author: Ayres L.D.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Article - Setting Net and Northwind lakes areas, District of Kenora (Patricia Portion)

Publication Number: MP053.001 Page: 6-13  Date: 1997

Author: Ayres L.D.

Publisher Name: Ontario Division of Mines

Location:

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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office