Main commodities | Cu |
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Ore minerals | chalcopyrite; pyrite |
Gangue minerals | quartz |
Quadrangle map, 1:250,000-scale | SR |
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Quadrangle map, 1:63,360-scale | D-1 |
Latitude | 60.8976 |
Longitude | -147.0976 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | The prospect is located on the west side of Finski Bay in the W1/2 section 24, T. 11 S., R. 11 W., of the Copper River Meridian. This is location 186 of Tysdal (1978 [MF-880-A]) and location S-105 of Jansons and others (1984). This location is accurate to within half a mile. |
Geologic descriptionThe prospect is hosted in sheared pillow basalt and greenstone of the Orca Group of Tertiary age. It consists of three 0.5- to 1-foot-wide quartz veins. The veins contain pyrite and chalcopyrite (Cobb and Tysdal, 1980). The single working on the prospect is a 70-foot drift. The U.S. Bureau of Mines sampled this prospect in 1981; they collected two samples of vein material that contained 11 and 70 ppm copper (Jansons and others, 1984). | |
Geologic map unit | (-147.099642958523, 60.8970601424864) |
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Mineral deposit model | Cyprus massive sulfide (Cox and Singer, 1986; model 24a) |
Mineral deposit model number | 24a |
Age of mineralization | Tertiary or younger; the veins are in pillow basalt of the Orca Group of Tertiary age. |
Workings or exploration | The working on the prospect consists of a 70-foot drift. The U.S. Bureau of Mines sampled this occurrence in 1981; two samples of vein material contained 11 and 70 ppm copper (Jansons and others, 1984). |
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Indication of production | None |
MRDS Number | A010385 |
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References | |
Reporters | Jeff A. Huber (Anchorage) |
Last report date | 1/24/2000 |