Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F08NW00044

Record: MDI52F08NW00044

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Lead

Location

Township or Area: Kawashegamuk Lake Area

Latitude: 49° 29' 37.83"    Longitude: -92° 19' 32.49"

UTM Zone: 15    Easting: 548830.863   Northing: 5482574.549    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F08NW

Point Location Description: Transfer

Location Method: Conversion from MDI

Access Description: The New Church Lake Prospect 1s located on mining claim K.590337, immediately northeast of Church Lake in the Kawashegamuk Lake area. The property is accessible by a narrow bush road branching east from the Sandy Point Road, approximately 14 km south of its intersection with Highway 17 at Borups Corners. The bush road continues for 1.5 km to the east shore of Church Lake. The property is accessible by boat or can be found by walking along the east shore of Church Lake. (OFR 5723, p. 252)

Exploration History

1982: Staked by A. Kozowy. 1983: Transferred to Teck Explorations Limited who conducted geophysical surveys and geological mapping on the property. 1985: Transferred to A. Kozowy who then transferred the property to International Platinum Corporation. 1986: International Platinum Corporation drilled five holes on the property totalling 2786 ft. and conducted stripping.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Western Wabigoon

Belt: Eagle-Wabigoon-Manitou

Geological Age: Precambrian  

Geology Comments

Sep 17, 2009 (D Scholtz) - Gabbro xenoliths in the quartz veins, and sheared gabbro adjacent to the veins, is extremely soft, chloritic, pyritic [< 1-2%], and intensely carbonatized with white-brown calcite and minor iron carbonate. The gabbro hosts a 0.6 m wide, S-drag folded, boudinaged, quartz vein composed of vitreous white quartz containing finely disseminated galena [< 1%], minor chalcopyrite [ < 1%] and pyrite [< 1%]. The author observed extremely fine blebs of pale yellow visible gold disseminated amongst the sulphides and in massive quartz. The shear zone extends a few hundred metres northwestwards along a steep, sheared, cliff face where large boulders at the bottom of the cliff contain quartz vein material, and intensely sheared gabbro altered by iron carbonate. Three old east-trending trenches, at the extreme north end of the cliff, crosscut a wide felsite dike intruding the sheared gabbro. The dike is buff-white to pink, intensely carbonatized, silicified, and pyritic [< 1%], containing abundant fuchsite and hosting numerous quartz veins which have filled fractures within the felsite. The veins are composed of white quartz, hosting minor amounts of disseminated pyrite, chalcopyrite, and galena. The felsite dike and shear zone can be traced along the south and west shore of Brown Lake. Two old, long, east-trending trenches on the west shore of Brown Lake crosscut sheared and altered gabbro intruded by the felsite dike, which hosts thin, milk-white quartz veins. Shearing remains intense, but alteration is less extensive and sulphide mineralization is not abundant. The northwest-trending shear zone is the same structure which hosts a high grade gold-bearing quartz vein at the Church Lake Prospect to the southwest, on the east shore of Church Lake. Recent drilling by Silver Lake Resources Inc. (now known as International Platinum Corporation) intersected wide zones of sheared, intensely carbonatized, variably silicified sulphide-rich gabbro hosting narrow quartz veins. Sulphides consist of disseminated pyrite, pyrrhotite, and chalcopyrite. A random grab sample of the high grade vein taken by A. Kozowy assayed 33.68 ounces gold per ton (A. Kozowy, prospector. Dryden, personal communication, 1985). Two grab samples of altered gabbro containing < 1% pyrite, taken by the author, assayed 4 ppb gold and 90 ppb gold. A grab sample of the felsite dike northwest of the main showing, taken by A. Kozowy, assayed 0.16 ounce gold per ton (A. Kozowy, prospector, Dryden, personal communication, 1985), and a grab sample from another location in the felsite, taken by the author, assayed 11 ppb gold and <2 ppm silver. Random grab samples of the felsite and gabbro at Brown Lake, taken by the author, assayed 5 ppb gold and 7 ppb gold, respectively. Recent drilling by Silver Lake Resources Inc. (now known as International Platinum Corporation) encountered intersections of 0.05 ounce gold per ton across 16.5 ft., including a 3 ft. section assaying 0.108 ounce gold per ton, and 0.02 ounce gold per ton over 3.1 ft., including a 5 inch section assaying 0.079 ounce gold per ton (Assessment Files, Resident Geologist's Office, Kenora). (OFR 5723, p. 252, 253)

Lithology

Lithology Comments

Sep 17, 2009 (D Scholtz) - The general geological setting of the area consists of tholeiitic to calc-alkaline, mafic, and intermediate to felsic flows and pyroclastics of the Kawashegamuk Lake Volcanic Group. These rocks have been intruded by numerous magnetite-bearing gabbros and small felsic intrusions which are commonly carbonatized and sericitized. Pervasive carbonatization occurs throughout the area, as well as numerous northeast-trending faults and northwest-trending shear zones. The New Church Lake Occurrence consists of a massive, medium- to coarse-grained, commonly porphyritic, dark green gabbro containing extremely abundant [< 15%] disseminated, euhedral magnetite crystals [< 1-3 mm], A wide, vertically dipping shear zone striking 340° extends for approximately 1.6 km through the gabbro, along the northeast shore of Church Lake and along the west shore of Brown Lake, immediately north of Church Lake. The gabbro is moderately to intensely sheared, fissile and mylonitized, chloritized and carbonatized, and hosts quartz stringers, veins, and variable amounts of disseminated pyrite (up to 2%).

Mineralization

Mineralization Comments

May 30, 2022 (Q Unknown) - Grade: best assay - 33.68 opt Au (grab) - 0.05 opt Au over 5.0 m. The northwest-trending shear zone is the same structure which hosts a high grade gold-bearing quartz vein at the Church Lake Prospect to the southwest, on the east shore of Church Lake. Recent drilling by Silver Lake Resources Inc. (now known as International Platinum Corporation) intersected wide zones of sheared, intensely carbonatized, variably silicified sulphide-rich gabbro hosting narrow quartz veins. Sulphides consist of disseminated pyrite, pyrrhotite, and chalcopyrite. A random grab sample of the high grade vein taken by A. Kozowy assayed 33.68 ounces gold per ton (A. Kozowy, prospector. Dryden, personal communication, 1985). Two grab samples of altered gabbro containing < 1% pyrite, taken by the author, assayed 4 ppb gold and 90 ppb gold. A grab sample of the felsite dike northwest of the main showing, taken by A. Kozowy, assayed 0.16 ounce gold per ton (A. Kozowy, prospector, Dryden, personal communication, 1985), and a grab sample from another location in the felsite, taken by the author, assayed 11 ppb gold and <2 ppm silver. Random grab samples of the felsite and gabbro at Brown Lake, taken by the author, assayed 5 ppb gold and 7 ppb gold, respectively. Recent drilling by Silver Lake Resources Inc. (now known as International Platinum Corporation) encountered intersections of 0.05 ounce gold per ton across 16.5 ft., including a 3 ft. section assaying 0.108 ounce gold per ton, and 0.02 ounce gold per ton over 3.1 ft., including a 5 inch section assaying 0.079 ounce gold per ton (Assessment Files, Resident Geologist's Office, Kenora). (OFR 5723, p. 252, 253)

Mineral Record Details

References

Compend - Report of activities, 1985, Regional and Resident Geologists

Publication Number: MP128 Page: 22-23  Date: 1986

Author: Kustra C.R.

Publisher Name: Ontario Geological Survey

Location:

Mono - Geology, gold mineralization and property visits in the area investigated by the Dryden-Ignace economic geologist, 1984-1987

Publication Number: OFR5723 Page: 252-253  Date: 1989

Author: Parker J.R.

Publisher Name: Ontario Geological Survey

Location:

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