Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52K01SW00029

Record: MDI52K01SW00029

General

Commodities

Primary Commodities: Nickel, Copper

Secondary Commodities: Iron, Chromium

Location

Township or Area: Lomond

Latitude: 50° 2' 59.96"    Longitude: -92° 22' 41.58"

UTM Zone: 15    Easting: 544515   Northing: 5544374    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52K01SW

Point Location Description: Located about 15 km WSW of the village of Hudson and 1 km west of the southern extent of Goodie Lake

Location Method: Field Visit with GPS

Access Description: From Hudson, take the extension of Highway 664 west to gravel road locally known as the Goodie Lake Road. Travel this road west past Goodie Lake. Approx 2 km past Goodie Lake a set of old logging trails can be followed north to a point SW of the occurrence. Alternatively, a traverse can be made from the SW shore of Goodie Lake to the occurrence. The trenches exposing the occurrence are on a 2 to 5 m high bedrock hill.

Exploration History

1954: Staked by C. Hanson for Moneta Porcupine Mines Ltd., who carried out trenching, magnetometer, geological, and dip-needle surveys. 1967: Asarco Exploration Company of Canada Ltd. conducted a geological survey, mapping, magnetometer and EM surveys, and drilled 3 DDH totalling 278.4 m .

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Abram-Minnitaki Lakes

Geological Age: Archean  

Lithology

Lithology Comments

Dec 07, 2005 (G Seim) - The Asarco occurrence is found within the Northern metavolcanics belt as defined by Beakhouse (1988) and Blackburn et al. (1991) The host rock to the mineralization is a very-dark-green, very-fine-grained, massive basalt. The basalt as mapped by Asarco in 1967 trends east-northeast and is up to 150 m thick. The basalt unit is bounded on both sides by grey quartz-biotite-amphibole gneiss. Sulphide mineralization reportedly occurs across the exposed thickness of the basalt. Observed by the writer only in the northern set of trenches, the mineralization consists of finely disseminated pyrrhotite, blebby pyrrhotite, and stringers pyrrhotite and pyrite. Sulphide concentration rarely exceeds 3% in hand sample. According to Asarco's work the northern set of trenches exposing the mineralization follow the mineralization along a east trend. Compass readings on sight indicate a northerly trend. Local weak shearing is found in the trenches and trends in the direction on the mineralization.

Mineralization

Mineralization Comments

Apr 30, 2020 (G Seim) - The Asarco occurrence is found within the Northern metavolcanics belt as defined by Beakhouse (1988) and Blackburn et al. (1991). The host rock to the mineralization is a very-dark-green, very-fine-grained, massive basalt. The basalt as mapped by Asarco in 1967 trends east-northeast and is up to 150 m thick. The basalt unit is bounded on both sides by grey quartz-biotite-amphibole gneiss. Sulphide mineralization reportedly occurs across the exposed thickness of the basalt. Observed by the writer only in the northern set of trenches, the mineralization consists of finely disseminated pyrrhotite, blebby pyrrhotite, and stringers pyrrhotite and pyrite. Sulphide concentration rarely exceeds 3% in hand sample. According to Asarco's work the northern set of trenches exposing the mineralization follow the mineralization along an east trend. Compass readings on sight indicate a northerly trend. Local weak shearing is found in the trenches and trends in the direction on the mineralization. Pyrrhotite is very finely disseminated in basalt, also occurs in stringer, and blebs. Concentrations rarely exceed 3% Pyrite occurs is stringers and on fracture planes. Chalcopyrite, sphalerite, galena, and magnetite originally reported with this occurrence were not observed in outcrop.

Nov 04, 2022 (Therese Pettigrew) - Low grade but anomalous Cu and Ni values were found in Early Precambrian andesitic rocks. Mineralization consists of weakly disseminated pyrite, pyrrhotite, chalcopyrite, sphalerite, and galena. Trenching has exposed mineralization across true width and length of 70 feet by 110 feet. Chip samples from trenches returned 0.06 to 0.21% Cu and 0.09 to 0.15% Ni (SMDR 00529).

Alteration Comments

Apr 30, 2020 (G Seim) - No alteration other than sulphides were observed.

Assay Samples

Mineral Record Details

Site Visit Information

Date: Jul 12, 1996

Geologist: G Seim

Notes: This property was visited on July 10, 1996. The location originally given in MDI1 was in error. A single uncorrected GPS reading was used for the new location. Error on the location is estimated at +/- 25 m.

References

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

Publication Number: MDC012 Page: 188  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

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