Main commodities | Cu; Zn |
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Ore minerals | chalcopyrite; pyrite; sphalerite |
Quadrangle map, 1:250,000-scale | HE |
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Quadrangle map, 1:63,360-scale | B-3 |
Latitude | 63.421 |
Longitude | -148.394 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | The prospect is at an elevation of about 4,100 feet, about two miles southwest of the summit of Pyramid Peak. The map site is in the SW1/4 of sec. 19, T. 17 S., R. 4 W., of the Fairbanks Meridian. The location is accurate to within 1,500 feet. |
Geologic descriptionThe country rocks in the area of this prospect are Upper Triassic, generally thin-bedded, commonly cross-bedded, carbonaceous shale, argillite, sandstone, and siltstone. The strata are cut by numerous dikes, sills, and plugs of altered diabase and gabbro, and by Upper Cretaceous?-Lower Tertiary granites (Wilson and others, 1998). The prospect consists of pyrite, chalcopyrite, and sphalerite disseminated in the bedded rocks. | |
Geologic map unit | (-148.396277253569, 63.4205442022611) |
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Mineral deposit model | Besshi massive sulfide (Cox and Singer, 1986; model 24b) |
Mineral deposit model number | 24b |
Age of mineralization | The sulfide minerals probably are syngenetic with their Upper Triassic host rocks. |
Workings or exploration | Surface exploration only. |
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Indication of production | None |
MRDS Number | 10307571 |
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References | |
Reporters | N. Van Wyck (Stevens Exploration Management Corporation) |
Last report date | 4/7/2000 |