| Main commodities | Cu; Zn |
|---|---|
| Ore minerals | chalcopyrite; pyrite; sphalerite |
| Quadrangle map, 1:250,000-scale | HE |
|---|---|
| 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) |
|---|---|
| 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. |
|---|---|
| Indication of production | None |
| MRDS Number | 10307571 |
|---|---|
References | |
| Reporters | N. Van Wyck (Stevens Exploration Management Corporation) |
| Last report date | 4/7/2000 |