Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52J02NE00045

Record: MDI52J02NE00045

General

Mineral Record Identification
Record Name(s) Dawson-White - 1901, BG 157, 158 - 1965, Pomac - 9999, White - 9999
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 2002-Sep-11
Date Last Modified 2022-Sep-27
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Beckington Lake Area

Latitude: 50° 8' 26.6"    Longitude: -90° 39' 22.6"

UTM Zone: 15    Easting: 667468.629   Northing: 5556906.992    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52J02NE

Point Location Description: Shaft

Location Method: Conversion from MDI

Access Description: Light aircraft can land on the lake near the occurrence in winter and summer. Boat and snowmobile access to the lake is availible from access points of HWY. 599 between Trappers Point and Horizontal Bay of Sturgeon Lake.



Exploration History

1901-1902: Claim TB 6980 is the location of the Dawson-White mine. A development study was done on the property by the Sturgeon Lake Mining Company. The company sank a -70 shaft to a depth of 70 feet. 50 feet of cross cutting and 30 feet of drifting was done at this horizon. An open cut was excavated to the north of the shaft and a 10-stamp amalgamation mill was installed. 1902-1903: A level was established at 60 ft. and limited cross-cutting completed. 1937: Dawson-White Gold Mines Ltd. took over the property in the spring of 1937. Camps including a bunkhouse, cookery, office and warehouse were built. In the spring. 29 diamond-drill holes were put down, totalling 6 100 feet. On May 23, a two compartment vertical shaft was started about 140 feet north-east of the old (1902) workings. A new headframe, blacksmith shop, cap-house, and powder magazine were erected. Sinking under power was commenced on July 11, 1937 and the shaft was sunk to a depth of 225 feet, with 80 feet of cross-counting, 190 feet of drifting, and 30 feet of raising on the 100-foot level, and 85 feet of drifting on the 200-foot level. It was reported that underground exploration gave encouraging results, but owing to lack of finances, operations were suspended on September 29 and the company was declared bankrupt. 1965: Re-opening and sampling pits on the Dawson location, dewatering and trenching of the old open cuts on location BG 157 and HW 697 and magnetic and electromagnetic surveys over portions of the property (Trowell 1983, p. 96) 1984: Coastoro Resources Ltd. conducted a drilling and geophysical program over the Dawson-White and the La Riviere Zone during the winter of 1983-84. 2110 feet of drilling was done.




Geology Comments

Dec 07, 2005 (C Ravnaas) - On location B.G. 157 is what is known as the Dawson Mine, now owned by the English River Gold Mining Company, and formerly controlled by the Sturgeon Lake Mining Company. St. Anthony, it is situated near the contact between the green schists and granite, but instead of lying on the main contact, it lies on the contact between bands of schists and the granite. There are here a number of pegmatite dikes, in some parts composed of about half feldspar and half quartz, and in other parts consisting largely of one or two. The gangue is quartz, and the ore minerals found were galena, sphalerite, pyrite and chalcopyrite. Good specimens of free gold are said to have been found, though we .. any on the dump. The workings include a shaft, open cut and some pits, the former being full of water. The shaft is said to be 64 feet deep, and the open cut is about 70 feet long. 10 feet wide. Much of the country rock is included in this width. The buildings include a mill containing 10 stamps and other equipment, but the ill has been long idle.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Host
Mafic lava flow-unsubdivided 2
Granodiorite 3
Pegmatite 4 dyke

Lithology Comments

Dec 07, 2005 (C Ravnaas) - Mineralization occurs in quartz vein. Host rock: near contact between greenschists and granodiorite in a sheared series of interlayered mafic metavolcanic and sediment beds. Other associated rock types: pegmatite dikes.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GalenaEconomicOre
2GoldEconomicOre
3MolybdeniteEconomicOre
4PyrolusiteEconomicOre
5PyriteEconomicOre
6PyrrhotiteEconomicOre
7SphaleriteEconomicOre
8ChalcopyriteEconomicOre
CarbonateAlterationCarbonization1
QuartzAlterationSilicification2

Mineralization Comments

Aug 02, 2022 (Q Unknown) - Production - 1901: from open cut - 225 tons milled (10 stamp mill), grade - 1901: recovery averaged 0.84 oz Au/ton). Depth - grade - 1984: 14 ddh, several structures intersected, longest grade 0.17 opt Au/11.75ft (#84.1)



Mineral Record Details

Production Data
Year Tonnes Commodities Reference Comment
1901 204 Gold 189 Ounces
10 stamp mill

References

Part - Mines of Ontario in 1937

Publication Number: ARV47-01.003 Page: 111-112  Date: 1997

Author: Sinclair D.G., Tower W.O., Taylor J.B., Douglass D.P., Bayne A.S., Cave A.E., Cooper D.F., Weir E.B., Webster A.R.

Publisher Name: Ontario Dept. of Mines

Location:


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

Publication Number: MDC013 Page: 293  Date: 1971

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

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


MonoMap - Geology of the Squaw Lake-Sturgeon Lake area, District of Thunder Bay

Publication Number: R227 Page: 74-75, 95  Date: 1983

Author: Trowell N.F.

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