Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52B10SE00033

Record: MDI52B10SE00033

General

Commodities

Primary Commodities: Gold, Copper, Silver

Secondary Commodities: Platinum, Zinc

Location

Township or Area: Moss

Latitude: 48° 35' 29.05"    Longitude: -90° 39' 22.42"

UTM Zone: 15    Easting: 672821.34   Northing: 5384687.53    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52B10SE

Point Location Description: From map in AFRI 52B10SE0008

Location Method: Based on Assessment

Access Description: Follow Highway 11 west from Thunder Bay to Kashabowie. From there, Highway 802 is followed southward, whereupon a dirt road leads around the north and west sides of Burchell Lake.

Exploration History

1952: Hermes Mines Limited carried out geological mapping and prospecting. 1957: Arcadia Nickel Corp. carried out magnetic and EM surveys and drilled 1 DDH totalling 91.1 m. 1985: J. Lukosius-Sanders carried out prospecting, mapping, and sampling. 1986: J. Lukosius-Sanders completed a VLF survey and geological mapping. 1987: Discovery West Corp. carried out trenching, line-cutting, IP and Magnetic surveys. 1988: A 14 hole drill program (2,118 m) was undertaken plus trenching-stripping. 1989: Six additional holes were drilled. 1990: J. Lukosius-Sanders received an OPAP grant and completed mapping, prospecting and sampling along gridlines. 2002: Alto Ventures staked the area of the showing. 2004: Alto Ventures completed prospecting over the area of the showing. 2009: Foundation Resources completed prospecting along the western shore of the Burchell Lake but not over the Lukosius-Sanders showing.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Shebandowan

Geological Age: Archean  

Lithology

Lithology Comments

Feb 03, 2017 (Andrew Tims) - The area of the showing is underlain by felsic to intermediate with mafic metavolcanic rocksto the west. The mafic metavolcanic rocks consist of massive to pillowed and amygdaloidal flows and their derived schists. Volumetrically minor chert-magnetite banded iron formation occurs within the mafic volcanic sequences. Locally massive aphyric flows and their derived schists host the showing. A small granitic stock of similar composition to the Burchell Lake pluton intrudes the felsic metavolcanic pile near the western shore of Burchell Lake. Ubiquitous quartz and quartz-feldspar porphyries, as steeply dipping sills and dykes, intrude the volcanic rocks concordantly throughout the area.

Mineralization

Mineralization Comments

Oct 09, 2018 (Therese Pettigrew) - A.P. Coleman described the showing in Mining Location R559 as being from a well-defined quartz porphyry containing pyrite and chalcopyrite with a little fluorite. Assays returned up to $7 Au per ton (0.35 opt Au based on $20 Au; 12 gpt Au). One assay yielded 0.5 ounce of platinum and 11 oz of silver (Coleman, 1896). J. Lukosius-Sanders collected a sample in 1990 that assayed 9.6 gpt Au (AFRI 52B10SE0008). Samples from Trench T-5 collected by J. Lukosius-Sanders in 1990 returned assays of up to 2776 ppm Cu and 2010 ppb Au, 38210 ppm Cu and 4260 ppb Au, and 72663 ppm Cu and 9600 ppb Au (AFRI 52B10SE0021). Lavigne et al. (1991) reported assays of 9.6 gpt Au, 7.3% Cu, 192.2 gpt Ag, and 607 ppm Zn from Trench G, which had pods of massive pyrite, chalcopyrite, and minor spaherite in shear zones within rhyolite and feldspar porphyry.

Mineral Record Details

Site Visit Information

Date: Jul 03, 1990

Geologist: M Lavigne

Notes: This property is known to contain 8 gold occurrences over an area 0.5 km wide by 2.4 km long. Only a minor amount of exploration is on record as having taken place prior to the 1980s. Many of the geophysical anomalies were either drilled or stripped and sampled from 1987 to 1989. RGP vist: Goldfields Gold Showing—rhyolite and feldspar porphyry with east-trending (100°-120°) shear zones typically less than 0.1 m wide. Pods of massive pyrite, chalcopyrite and minor sphalerite in shear zones assayed 9.6 g/t Au, 7.3% Cu, 192.2 g/t Ag and 607 ppm Zn

References

Book - 52B10SE R559

Publication Number: MDI Files Date: 1996

Author: RGP Staff

Publisher Name:

Location: RGP Thunder Bay

Map - Precambrian Geology, Moss Township

Publication Number: M2624 Scale: 1:20,000    Date: 1997

Author: Osmani I.A.

Publisher Name: Ontario Geological Survey

Location:

Part - Second report on the gold fields of western Ontario

Publication Number: ARV05.002 Page: 76, 119  Date: 1998

Author: Coleman A.P.

Publisher Name: Ontario Bureau of Mines

Location:

Article - Thunder Bay Resident Geologist's District - 1990

Publication Number: MP152.005 Page: 116-117  Date: 1997

Author: Lavigne Jr. M.J., Scott J.F., Sarvas P.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology and Mineral Potential of Moss Township, District of Thunder Bay

Publication Number: OFR5865 Date: 1993

Author: Osmani I.A.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology and Mineral Potential, Greenwater Lake Area, West-Central Shebandowan Greenstone Belt

Publication Number: R296 Date: 1997

Author: Osmani I.A.

Publisher Name: Ontario Geological Survey

Location:

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