Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42L06NE00012

Record: MDI42L06NE00012

General

Commodities

Primary Commodities: Copper

Secondary Commodities: Gold, Silver

Location

Township or Area: O Sullivan Lake Area

Latitude: 50° 25' 28.31"    Longitude: -87° 1' 22.3"

UTM Zone: 16    Easting: 498376   Northing: 5585834    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42L06NE

Point Location Description: Sample location from Pit 3 in Assessment report 20000001090

Location Method: Data Compilation

Exploration History

1954-55: Copper Jim Mines carried out trenching and drilled 13 DDH totalling 1892.5 m. 1971: Amax Exploration Inc. conducted an EM survey and drilled 4 DDH totalling 484.9 m. 1980: E.W. Bazinet conducted magnetic and EM surveys. 1981: South Atlantic Ventures Ltd. carried out mapping and drilled 2 DDH totalling 81.2 m. 1983: E.W. Bazinet drilled 3 DDH totalling 142.5 m. 1992: prospecting and sampling. 1998: M. Atkins and T. Maitland carried out prospecting, sampling, and mapping. 2005: Superior Canadian Resources Inc. carried out prospecting and sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Eastern Wabigoon

Belt: Onaman-Tashota

Geological Age: Archean  

Lithology

Mineralization

Mineralization Comments

Dec 17, 2020 (Therese Pettigrew) - DDH CJ 71-3 returned 0.37% Cu over 20 feet, including 0.60% Cu and 0.21 oz/t Ag over 5 feet from a rhyodacite breccia with heavy pyrrhotite and streaks of chalcopyrite (Assessment report 42L06NE0058). Copper Jim which has mineralization in a breccia zone in the form of pyrite, pyrrhotite and chalcopyrite. This zone was traced for a strike length of 600 ft and found to occur across horizontal widths of up to 35 ft. Assays from this property usually range from 2.78 to 7.43% Cu and from 0.03 to 0.07 oz/ton Au (Shklanka, 1968). The Copper Jim Showing consists of five pits and trenches containing predominantly quartz-feldspar and feldspar porphyry, with lesser amounts of mafic volcanic. The QFP exhibits up to 10% quartz eyes 34 mm in size, with variable amounts of sulphides and quartz veins with or without sulphides. Grab samples from these pits ran as high as 3931 ppb Au, 3923 ppb, 1915 ppb and 1185 ppb from the QFP or quartz veins in the QFP; and 2906 ppb from the mafic volcanic adjacent to the QFP in Pit #1. Sampling in 1955 returned 1.92% Cu and 0.6 g/t Au over 2.1 m. Sampling in 1992 returned 4.9 g/t Au (Assessment report 20000001090). Sampling in 1998 returned 5.63 g/t Au from a quartz porphyry dyke with moderate iron carbonate alteration, minor disseminated pyrite and trace chalcopyrite (Assessment report 42L06NE2001).

Mineral Record Details

References

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

Publication Number: MDC012 Page: 335-336  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

Folio - O'Sullivan Lake area, District of Thunder Bay

Publication Number: GDIF017 Date: 1997

Author: Thunder Bay RGO

Publisher Name: Ontario Geological Survey

Location:

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Ministry Contact Information

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