Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52K01SW00004

Record: MDI52K01SW00004

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver

Location

Township or Area: Vermilion

Latitude: 50° 0' 40.01"    Longitude: -92° 15' 43.58"

UTM Zone: 15    Easting: 552870.33   Northing: 5540127.31    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52K01SW

Point Location Description: Precise

Location Method: Conversion from MDI

Exploration History

1928: staked by H. Botham and H.K. Mitchell. 1932: Vermilion Lake Gold Mines Ltd. took over the property. 1934: Reward Mining Company Ltd. acquired the property. 1940: Vermor Gold Mines Ltd. carried out drilling. 1951: H.A. McQueen drilled 4 DDH totalling 73.5 m. 1954: Denree Consolidated Mines Ltd. acquired the property and drilled 33 holes totalling 253.2 m. 1985: Kennco Exploration Canada Ltd. carried out ground VLF-EM and magnetic geophysical surveys, geological mapping, sampling, and prospecting. 1988: D.E. Smith drilled 8 DDH totaling 528.5 m. 1989: D.E. Smith drilled 1 DDH totalling 93.6 m. 2006-08: I.J. Riives and A. Glatz staked the claim and carried out prospecting, sampling, and humus sampling. 2010: I.J. Riives and A. Glatz carried out sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Abram-Minnitaki Lakes

Geological Age: Archean  

Lithology

Lithology Comments

Apr 30, 2020 (Therese Pettigrew) - Timiskaming sediments have been intruded by a quartz porphyry body. Quartz veinlets in shear zones at and near the contact contain gold and sulphides including arsenopyrite. The strike and dip of the zone along the north side of the porphyry body is N80E and 60N respectively; mineralization was traced in rockcuts over a length of 120 feet and a width of 5 to 8 feet (Haynes et al., 1971).

Mineralization

Mineralization Comments

Apr 30, 2020 (Therese Pettigrew) - The mineralization occurs in two zones at or near the contact of quartz porphyry and sediments. The north zone consists of a quartz stringer zone trending about N75E and dipping about 65 degrees north at the intrusive contact of a quartz porphyry body and volcanic boulder conglomerate. The quartz stringer zone appears to be about 5 feet wide and is over 100 feet long before it disappears under the waters of Vermilion Lake. The rocks along the contact are highly sheared to quartz-sericite or talcose schists locally containing minor amounts of mariposite. The rocks are also silicified, carbonatized, and impregnated with much pyrite. Other minerals in the zone include minor arsenopyrite, galena, sphalerite, and chalcopyrite. The production in 1930 and 1935 came from the north zone. Grab samples taken by the writer from the small rock dump were found by the Laboratory and Research Branch, Ontario Department of Mines and Northern Affairs, to assay 0.02 and 0.14 ounces gold per ton. The south zone consists of a sparsely mineralized milky white quartz vein up to 12 inches wide in sheared conglomerate 10 to 20 feet south of the porphyry contact. Here the conglomerate unconformably overlies the quartz porphyry and hence the mineralization is not related to it. A number of old shallow trenches expose the vein over 100 feet in length with a width of 1 to 3 feet. The veins contain small pockets of sphalerite and galena with very minor pyrite and chalcopyrite. A grab sample of vein material taken by the author yielded only a trace of gold when assayed by the Laboratory and Research Branch of the Ontario Department Mines and Northern Affairs. The north zone mineralization with the heavy alteration including pyritization and carbonatization, is confined to the quartz porphyry contact and is probably genetically related to the intrusive, whereas the south zone mineralization occurs in rocks younger than the quartz porphyry (Johnston, 1972). Chip samples taken 2010 returned 29.85 g/t Au over 0.75 m and 11.45 g/t Au over 0.60 m from disseminated sulphides and mariposite. Grab samples from an altered felsite returned up to 8.32 g/t Au (Assessment report 20000006353).

Mineral Record Details

References

Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Scale:     Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Part - Geology of the Sioux Lookout area

Publication Number: ARV41-06.001 Scale:     Date: 1998

Author: Hurst M.E.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Geology of the Vermilion-Abram lakes area, District of Kenora

Publication Number: R101 Scale:     Date: 1972

Author: Johnston F.J.

Publisher Name: Ontario Division of Mines

Location:

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