Ontario Geological Survey
Permanent Link to this Record:
MDI52F08NW00007
| Record Name(s) | Bronger - 1942, Church Lake - 1942, O.H. Occurrence - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-22 |
| Date Last Modified | 2022-Aug-04 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Kawashegamuk Lake Area
Latitude: 49° 29' 29.95" Longitude: -92° 19' 25.5"
UTM Zone: 15 Easting: 548973.851 Northing: 5482332.607 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F08NW
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: The Church Lake Prospect (Bronger Occurrence) is located on the east shore of Church Lake at the southwest corner of claim K. 851307 (formerly claim K.590549 which was K. 9194). The property is accessible by a narrow bush road branching east from the Sandy Point Road, approximately 14 km south of its intersection with the Trans Canada Highway at Borups Corners. The bush road continues for 1.5 km to the east shore of Church Lake where it terminates. A short foot path to the lake leads to the showing. (OFR 5723, p.182)
1942: 5.5 tons of ore extracted from the property by Mr. O.H. Bronger, and milled at the Sakoose Mine. 1982: Staked by A. Glatz, 85% interest transferred to A. Kozowy. 1983: Transferred to Teck Explorations Limited who conducted geological mapping, sampling, geophysical surveys, and diamond drilling. 1985: Transferred to International Platinum Corporation.
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Mafic Pyroclastic Breccia | 1 | pyroclastics of calc-alkaline Kawashegamuk Volc. | Contains |
|---|---|---|---|---|
| Gabbro | 2 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Gold | Economic | Ore |
Aug 04, 2022 (Q Unknown) - The prospect is underlain by mafic to felsic metavolcanic flows and pyroclastics of the calc-alkaline Kawashegamuk Lake Volcanics, intruded by gabbro stocks and felsic dikes. The prospect is situated within a northwest-trending shear zone parallel to the Kawashegamuk Lake shear zone southwest of the property. The prospect is underlain by a medium- to coarse-grained, dark green gabbro in contact with metavolcanics to the east and west. The gabbro commonly contains blue quartz "eyes" and disseminated magnetite, as well as small pods and clots of magnetite. The gabbro is porphyritic and glomeroporphyritic with large clots of white, euhedral feldspar crystals. A massive, buff white, fine-grained, felsite dike occurs along the east shore of Church Lake, in contact with the gabbro. A 2 metre wide shear zone striking 350° for approximately 90 metres and dipping 60° to the west, extends through the gabbro and along its contact with the felsite dike. The shear is parallel to the contact and occupied by a 30 cm-50 cm wide, milk white, gold-bearing quartz-carbonate vein. The sheared gabbro is dark green and intensely chloritized with white calcite on shear planes and in narrow fractures. Vertical lineations on the shear surface indicate some dip-slip movement along the shear. Chloritized angular xenoliths of gabbro commonly occur within the vein. Disseminated flakes, blebs and wires of visible gold occur along the edges of the quartz vein, around xenoliths of gabbro, and well within the quartz. Minor amounts [<1%] of disseminated pyrite and chalcopyrite are present, but occur independently of the gold. Visible gold and the best gold assays occur in the main trench, which is 15 m long, 2 m wide and 2 m deep. Two smaller trenches, 25 m north and on strike with the main trench, contain trace amounts of gold. The shear zone narrows within the smaller trenches and the quartz vein narrows and becomes discontinuous. Five holes, totalling 200 m, were drilled perpendicular to the strike of the shear zone. Drilling results indicate that the quartz vein pinches out at depth and that the shear zone actually consists of a number of narrow, parallel shears, continuing at depth (W. Penno, geologist. Teck Explorations Limited, personal communication, 1984). (OFR 5723, p. 182)
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1942 | 5 |
Part - Mines of Ontario in 1942
Publication Number: ARV52-01.003 Page: 182 Date: 1997
Author: Tower W.O., Smith R.L., Bawden W.E., Cooper D.F., Taylor J.B., Little E.S., Weir E.B., Douglass D.P.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Kawashegamuk Lake area, District of Kenora
Publication Number: OFR5659 Page: 89-90 Date: 1987
Author: Kresz D.U.
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: 182-183 Date: 1989
Author: Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
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