Ontario Geological Survey
Permanent Link to this Record:
MDI52L02SW00003
| Record Name(s) | Whitedog Quarry - 1957 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1987-May-14 |
| Date Last Modified | 2022-Mar-30 |
| Created By | |
| Revised By |
Primary Commodities: Granite, Aggregate
Township or Area: Swan Lake Area
Latitude: 50° 6' 29.67" Longitude: -94° 52' 6.74"
UTM Zone: 15 Easting: 366392.431 Northing: 5552337.576 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52L02SW
Point Location Description: Transfer
Location Method: Conversion from MDI
1957: The granite was quarried for concrete aggregate during the construction of the Whitedog Falls Dam but has not been quarried for dimension stone.
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 |
|---|
Mar 30, 2022 (Therese Pettigrew) - The granite of interest is a tongue 800 m wide and 4 km long that trends west-southwest just south of Whitedog Falls hydro electric dam. The granite is predominantly red in colour. There are numerous inclusions and schlieren near the edges of the body. Jointing in the west part of the granite is wide spaced (3 m and greater). The major directions are northeast, east-southeast and southeast with east-southeast directions predominant. The granite is well exposed in a stripped area and a large quarry (for crushed stone). The granite in the quarry shows colour variation from red to grey-red and minor patch pegmatites. The quarry and stripped area are near the edge of the body and the granite improves toward the centre. Sheeting where exposed in the quarry is 0.3 to 0.6 m at the top of the opening. The red granite continues east of the quarry site for 3 km but part of this is covered by the waters of Roughrock Lake. The sheet spacing increases to 2 m and joints become more evident (minimum spacing 2 m). The colour is uniform red with a gradual fad ing to pink. To the east (sample 83-191 and east) the joint and sheet spacing decreases to 1 m or less and schlieren become more common. The colour of the granite further east of this area is more like that of the Roughrock Lake - Cygnet Lake area. A sample of typical red material from the quarry was examined. It polishes well, the quartz is clear and colourless, and the feldspar is pink-red due to hematite. There is about 2% biotite and a small amount of accessory magnetite in this piece. The adjacent granite to the west is part of the Tetu Lake Batholith and is pink to brown-red in colour often with abundant nebulitic schlieren (Storey, 1986).
MonoMap - Preliminary geological synthesis of the English River Subprovince, northwestern Ontario and its bearing upon mineral exploration
Publication Number: MP072 Page: 29-31 Date: 1978
Author: Breaks F.W., Bond W.D., Stone D.
Publisher Name: Ontario Geological Survey
Location:
Mono - Building and ornamental stone inventory in the districts of Kenora and Rainy River
Publication Number: MDC027 Page: 50 Date: 1986
Author: Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
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