Main commodities | Cu |
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Ore minerals | chalcopyrite; pyrite |
Quadrangle map, 1:250,000-scale | SD |
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Quadrangle map, 1:63,360-scale | B-4 |
Latitude | 57.4367 |
Longitude | -132.80351 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is on peak 5010, which is about 7.7 miles north-northeast of the east end of Glory Lake. It is about 0.3 mile north of the center of section 19, T. 51 S., R. 79 E. |
Geologic descriptionThis occurrence consists of biotite-quartz gneiss with disseminated pyrite and chalcopyrite (Clark and others, 1970 [OF 70-74]). The gneiss is part of the Coast Plutonic complex of Tertiary or Cretaceous age (Gehrels and Berg, 1992) . A sample contained 70 ppm copper. | |
Geologic map unit | (-132.805202270199, 57.4363658893926) |
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Mineral deposit model | Disseminated pyrite and chalcopyrite in gneiss. |
Age of mineralization | Sulfides disseminated in gneiss of probably Tertiary or Cretaceous (metamorphic) age; the age of the protolith is unknown. |
Workings or exploration | Only sampling by government geologists. |
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Indication of production | None |
MRDS Number | AO13361 |
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References | |
Reporters | Donald Grybeck (U.S. Geological Survey) |
Last report date | 10/8/2004 |