Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52E10SW00088

Record: MDI52E10SW00088

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Zinc, Silver

Location

Township or Area: Glass

Latitude: 49° 34' 51.14"    Longitude: -94° 58' 45.03"

UTM Zone: 15    Easting: 356933.57   Northing: 5493913.26    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52E10SW

Point Location Description: AMIS location

Location Method: Data Compilation

Exploration History

1896: showing was discovered by I. Gagne and sold to C. Markell. 1897: Ontario Ltd. acquired the property and conducted prospecting, trenching, pitting, and diamond drilling. 1899: Shafts sunk on Vein No. 1 to depths of 16.7 m and 13.4 m. On Vein No. 4, 6 m of drifting was done at the bottom of a 23 m deep shaft. A shaft was sunk about 20 m at the junction of Veins 5, 6, and 7. 1898: work was suspended 1929: Kenora Prospectors & Miners Ltd. carried out prospecting, trenching, and sampling. 1973: Kenora Prospectors and Miners Ltd. wrote a summary report and carried out sampling. 1974: Imperial Oil Ltd. conducted EM and magnetometer surveys. 1981: Denison Mines Ltd. carried out sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Archean  

Lithology

Lithology Comments

Jan 14, 2020 (Therese Pettigrew) - The property is underlain by NNE-striking fine-grained basalt bands often showing pillow structures. The basalt is interlayered with hornblendite and pyroxenite bearing gabbroic sills which also show a magnetic response. The assumed axis of the anticlinal structure runs almost along the base line. One main shear zone appears to run parallel and close to the base line and is mineralized with pyrite, pyrrhotite and chalcopyrite. Numerous cross fractures trending NW occur in the area. These are filled with quartz veins, usually show signs of shearing and often contain appreciable gold with them (Assessment report 52E10SW8555).

Mineralization

Mineralization Comments

Jan 14, 2020 (C Ravnaas) - The No. 8 Vein s located in the west center of claim D213 and strikes about east-west. Very little vein material can be seen because of the caved condition of the trenches, but it appears to be a westward continuation of the No. 9 Vein. The No. 9 Vein is east of, and on the same strike as the No. 8 Vein for a distance of about 300 feet where the strike changes to S60E. The vein, consisting of white crystalline quartz, can be traced for a distance of about 1200 feet. At one location a cribbed shaft was sunk about 1900 and some vein material was removed. The quartz is white crystalline carrying some disseminated pyrite, chalcopyrite, and pyrrhotite. A grab sample of the quartz near the shaft assayed 1.02 ounces gold per ton. The No. 12 Vein is located 500 feet north of the southeast corner of claim S74. It has been trenched at intervals for a distance of about 800 feet along a strike of S75E. A cribbed shaft, about 40 feet deep is located at the west end of the vein where the vein material consists of two and one-half feet of quartz in rusty carbonate carrying pyrite, with a little chalcopyrite and pyrrhotite. The vein walls are andesite and the south wall is well sheared. A grab sample at the shaft assayed 0.04 ounces gold per ton. Toward the east end of the vein there is considerable pyrrhotite, sphalerite, and some chalcopyrite. A grab sample near the pit at the east end assayed 0.12 ounces gold per ton and a chip sample across 5 feet assayed 1.60 percent zinc and 0.31 percent copper (Assessment report 52E10SW8558).

Jan 14, 2020 (Therese Pettigrew) - There are 12 known veins on the Old Ontario Property, numbered on the maps from 1 to 12. The most important veins appear, on surface to be Nos. 1, 2, 5, 6, 8, 9, and 11. Because of overburden the veins by are exposed by stripping and trenching for only short intervals along the strikes which range from east-west to S60E. The exception is the No. 2 Vein which strikes about N40E. The No. 1 Vein is located in claim D203. Assays from channel samples range from 0.02 ounces to 20 ounces gold per ton. The vein is exposed in a trench for a length of about 100 feet, both ends dipping into overburden. Widths vary from a few inches to 2 feet. It lies on the north contact of a felsite dike which strikes east-west but makes a sharp swing north at the east end of the trench. The felsite dike carries gold values but it is only exposed in the trench for a few feet and only its north contact is exposed. The No. 3 Vein is located near the shore of Yum Yum Bay in claim D203. It strikes N20E and dips vertically. The vein is exposed in a trench for a distance of about 100 feet north of the lake shore where it dips into overburden. The maximum exposed width is 10 feet with the west wall under overburden. Grab samples of the No. 3 Vein show values up to 2 percent copper and 4 percent zinc, with gold values frorn trace to 0.14 ounces per ton. No. 5 Vein strikes S70E across the southeast corner of claim D213. The west end of the vein dips into overburden. From there a trench exposes it for a distance of 100 feet to a cribbed shaft which appears to be about 45 or more feet deep. At the shaft the vein changes direction to S50E. It was trenched for another 120 feet from the shaft where it again dips into overburden. The vein material is composed of white crystalline quartz with some disseminated pyrite and fine chalcopyrite. A grab sample from the east end of the trench assayed 0.36 ounces gold per ton. The No. 6 Vein is located approximately 250 feet south of the northwest corner of claim D203 and extends west into claim McA43. The strike is east-west and the dip is vertical. The vein occurs in a shear zone which has been trenched over a ridge for a distance of about 250 feet with both ends dipping into low ground. Vein material consists of rusty quartz and carbonate carrying fine pyrite, chalcopyrite, pyrrhotite, and a little galena. A few fine specks of free gold were found in one specimen of quartz. A grab sample of quartz and rusty carbonate assayed 0.50 ounces of gold per ton (Assessment report 52E10SW8558).

Mineral Record Details

References

Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River

Publication Number: MDC016 Scale:     Date: 1976

Author: Beard R.C., Garratt G.L.

Publisher Name: Ontario Division of Mines

Location:

Part - Mines of northwestern Ontario

Publication Number: ARV07-01.003 Scale:     Date: 1998

Author: Bow J.A.

Publisher Name: Ontario Bureau of Mines

Location:

MonoMap - Geology of the Shoal Lake-Western Peninsula area, District of Kenora

Publication Number: OFR5242 Scale:     Date: 1978

Author: Davies J.C.

Publisher Name: Ontario Geological Survey

Location:

Mono - The geological setting of gold occurrences in the Lake of the Woods area

Publication Number: OFR5695 Scale:     Date: 1988

Author: Davies J.C., Smith P.M.

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