Hermiston-McCauley Mine

Last updated
Hermiston-McCauley Mine
Location
Canada Ontario location map 2.svg
Schlaegel und Eisen nach DIN 21800.svg
Hermiston-McCauley Mine
Location in Ontario
Location Temagami
Province Ontario
Country Canada
Coordinates 47°05′54.30″N79°49′38.18″W / 47.0984167°N 79.8272722°W / 47.0984167; -79.8272722 Coordinates: 47°05′54.30″N79°49′38.18″W / 47.0984167°N 79.8272722°W / 47.0984167; -79.8272722
Production
Products Gold
History
Opened1936
Closed1938

Hermiston-McCauley Mine is a large abandoned underground gold mine in Strathy Township of Temagami, Northeastern Ontario, Canada. It is located between the southwestern arm of Net Lake and the south arm of Kanichee Lake.

Contents

History

Hermiston-McCauley was the subject of quartz reef mining. From 1936 to 1938, a 115.1 m (378 ft) three compartment mine shaft was created. Three levels were created, two of which had 1,853.1 m (6,080 ft) of lateral work. [1]

Geology

Hermiston-McCauley Mine is on the northwestern side of the Net Lake-Vermilion Lake Deformation Zone. This is a northeast–southwest trending high strain zone that separates rocks of the Older and Younger volcanic complexes, which in turn comprise the Temagami Greenstone Belt. [1]

Reserves at Hermiston-McCauley have been variously estimated at 31,000 tons averaging 0.275 oz (7.8 g) of gold per ton, 45,700 tons averaging 0.30 oz (8.5 g) of gold per ton over 1 m (3.3 ft), or 9,000 tons averaging 0.5 oz (14 g) of gold per ton over 0.91 m (3.0 ft). A main and subsidiary quartz-rich zone occur in a ruptured diorite intrusion, which intrudes felsic volcanic rocks in a northwesterly direction with the strike of the Net Lake-Vermilion Lake Deformation Zone. The main quartz vein is at least 76.1 m (250 ft) long and up to 1.5 m (4.9 ft) wide. Pyrite with chalcopyrite and gold occupies quartz veins as blebs and small veins. [1]

See also

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References

  1. 1 2 3 Cameron, Driffield (1998-01-03). "Arsenic Lake Property". Burlington, Ontario: Geological Association of Canada: 5, 6. AFRI 31M04SW2001.Cite journal requires |journal= (help)