Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52M01SW00045

Record: MDI52M01SW00045

General

Commodities

Primary Commodities: Zinc, Gold

Location

Township or Area: Ball

Latitude: 51° 4' 24.74"    Longitude: -94° 16' 8.92"

UTM Zone: 15    Easting: 411087   Northing: 5658769    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52M01SW

Point Location Description: trench

Location Method: AMIS Site Visit

Access Description: Site is located 150m from shore of Biron Bay, Red Lake through a rugged densely forested area. The site is accessible from the lake by pace and compass. A 1.5km skidder trail also accesses Red Lake. The nearest community, red lake is 33km to the east by boat.

Exploration History

1930s: Golden Arm Mines incorporated, performed early prospecting. 1948: Biron Bay Mines Ltd did surface trenching. 1970: Line cutting performed. 1981: Golden Chance Partnership formed, performed electromagnetic and magnetometer surveys. 2003: Redstar Gold Corporation completed trenching and linecutting, geological mapping, structural interpretations. 2005: Redstar completed 3 DDH on the property totalling 379.75 m.

Assessment Work on File

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Amphibolite

Lithology

Lithology Comments

Nov 21, 2014 (K R Kettles) - MAIN ZONE: This area is underlain by intermediate and felsic tuffs striking N80 degs W. A gabbro sill occurs at the contact between the intermediate and felsic volcanic rocks. A shear zone cross cuts the stratigraphy at a very acute angle. Exploration in 1948 indicated that the shear zone along with associated quartz veins may be continuous over 563.8 m from the Main Zone to the eastern extension of the Main zone, and to the 'C' zone. MAIN ZONE EASTERN EXTENSION: Intermediate and felsic pyroclastic rocks contain a 2.4 m thick layer of chert-magnetite iron formation. The rocks strike N80 degs W and dip 68 degs NE. A quartz vein 20 to 45 cm wide runs parallel to bedding within volcanic rocks just south of the iron formation. This vein carries visible gold. Gold values also occur in the iron formation. The quartz vein may be continuous over 50 m with the Main zone. C ZONE: Trenches in the intermediate tuff have exposed a quartz vein 20.32 cm to 90 cm wide, along the contact between a small diorite dike and the volcanic rocks. The vein strikes N70 degs W, dips 50 degs to the NE, and has been traced for 90 m. This occurrence may be an extension of the Main Zone and its Eastern extension zone.

Mineralization

Mineralization Comments

Nov 21, 2014 (K R Kettles) - MAIN ZONE: Mineralization in this zone occurs within a quartz vein system hosted by a shear. The gold-bearing shear zone is possibly 560 m long, and cuts the pyroclastic rocks and the gabbro. The quartz vein system is 0.3 to 1.2 m wide. The discovery pit has assayed 0.36 opt Au/ 0.36m; other values on this structure are 0.79 opt Au/0.30 m; 0.01 opt Au/1.2 m; and 0.84 opt Au/.76 m. MAIN ZONE EASTERN EXTENSION: The gold mineralization at this part of the zone is hosted in a quartz vein in pyroclastic rocks, close to the iron formation. The chert-magnetite iron formation also contains gold. No assays are documented for the quartz vein, but visible gold was reported. The iron formation assays: 0.10 opt Au/1.2 m, and 0.02 opt Au/1.2 m. C ZONE: Gold is hosted in a quartz vein that occurs in intermediate volcanic rocks. The vein is up to 90 cm wide. A grab sample assayed 0.6 opt Au. A channel sample assayed 0.28 opt Au over 0.61 m. Grab samples collected in 1969 ranged from 1.90 opt Au to 0.01 opt Au. Several pits and trenches returned assays of 0.84 oz/t Au over 30 ft, 1.0 oz/t Au over 14 ft, 6.39% Zn over 4 ft, 4.56% Zn over 12 inches. Samples collected from claims KRL3475-3476 in 1980 returned gold values ranging from 0.01 to 0.22 oz/t Au. Two pound samples collected in 1982 returned nil to 1.07 oz/t Au, nil to 0.95 oz/t Ag and minor values in copper and zinc.

Jul 31, 2020 (Therese Pettigrew) - Channel sample results from 2003 ran up to 19.25 g/t Au over 0.6 m. DDH RCG-001 targeted the Ledge 2 mineralization and returned up to 4.27 ppm Au over 0.85 m from a quartz vein containing trace amounts of chalcopyrite and minor pyrite. DDH RGC-003 targeted the Ledge 1 vein structure and returned 7.66 g/t Au over 0.91 m, including 30.9 g/t Au over 0.14 m from a vein with up to 25% sphalerite mineralization with lesser pyrite, pyrrhotite, and chalcopyrite. The Ledge 1 & 2 showings lie on a single structure interpreted to be approximately 375 m long and are open at depth. The structure varies from 0.5 to 2.5 m width. Gold values as high as 22.1 g/t Au over 0.6 m from surface sampling has been obtained (Assessment report 20000000647). The Ledge 1 (L1) showing is in fine-grained felsic tuffs that host a quartz vein, oriented approximately 110/50N. The Ledge 2 (L2) showing is located approximately 130 m ESE along strike from L1. An interlayered sequence of felsic and mafic rocks similar to L1 occurs on this exposure. The vein is oriented approximately 115/70N and varies from several cm to 2 m in width. A subparallel irregular bull quartz vein occurs within the mafic rocks to the south. Local, minor pyrite, sphalerite, chalcopyrite, and native copper were observed in the main vein. Assay results from the channel sampling of the main vein range as high as 22.1 g/t Au over 0.5 m (Assessment report 52M01SE2034).

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Vein

Rank: 1       Structure Type: Vein

Rank: 1       Structure Type: Shear

Site Visit Information

Date: Jan 04, 1997

Geologist: K R Kettles

Notes: N/A

References

File - Resident Geologist files 1946

Publication Number: Date:

Author:

Publisher Name:

Location: Red Lake RGP office

Map - Ball Township, Kenora District

Publication Number: M2265 Scale: 1:12,000    Date: 1975

Author: Riley R.A.

Publisher Name: Ontario Division of Mines

Location:

Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2

Publication Number: OFR5558 Page: 65-70  Date: 1987

Author: Durocher M.E., Burchell P.S., Andrews A.J.

Publisher Name: Ontario Geological Survey

Location:

Part - Geology and mineral deposits of the Red Lake area

Publication Number: ARV49-02 Page: 121  Date: 1998

Author: Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:

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Ministry Contact Information

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