Basis for focus area |
10 km buffer around Contact point location from Singer and others (2008). |
Identified resources |
Identified resources of copper; historical production of copper, gold, and silver. |
Production |
From 1908 to 1965, the Contact mines produced 0.038 tonnes Au, 3.95 tonnes Ag, and 2.6 kilotonnes Cu, from an unknown tonnage of ore. |
Status |
Past mining, current exploration. |
Estimated resources |
NI 43-101 compliant Mineral Reserve estimate for the Contact Copper Project contains 58 million tons of 0.23% Cu (263 million lbs Cu) in the Proven category and 83 million tons of 0.21% Cu in the Probable category (348 million lbs Cu) for a total in Proven and Probable Reserves of 141 million tons of 0.22% Cu (612 million lbs Cu) at a 0.07% Cu cut-off grade (Choquette and others, 2013). |
Geologic maps |
Crafford (2010), scale 1:500,000; Coats (1987), scale 1:250,000; Gibbons (1973) scale 1:12,000. |
Geophysical data |
Inadequate aeromagnetic and aeroradiometric coverage. |
Favorable rocks and structures |
Jurassic granodiorite and felsic porphyry dikes intruding Upper Paleozoic siliciclastic and carbonate rocks. |
Deposits |
Contact District Copper Project (MRDS dep_id: 10310521). |
Evidence from mineral occurrences |
MRDS. |
Geochemical evidence |
No data. |
Geophysical evidence |
Unknown. |
Evidence from other sources |
Choquette and others (2013). |
Comments |
Sheeted veins and disseminated copper mineralization around larger quartz-sulfide veins. |
Cover thickness and description |
No significant cover. |
Authors |
David A. John. |
New data needs |
Geologic mapping, geophysics. |
Geologic mapping and modeling needs |
Updated geologic mapping. |
Geophysical survey and modeling needs |
High-resolution, Rank 1 aeromagnetic and aeroradiometric surveys. |
Digital elevation data needs |
Lidar in progress (GeoDAWN). |