| Quadrangle map, 1:250,000-scale | TN |
|---|---|
| Quadrangle map, 1:63,360-scale | A-2 |
| Latitude | 65.04873 |
| Longitude | -150.71016 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | This occurrence is at an elevation of about 1,800 feet, on the north spur of Bean Ridge between Little Beauty and Blowback creeks. The site is at Alaska Division of Geological and Geophysical Surveys (ADGGS) sample station 97JD053 (Liss and others, 1998), about 0.4 mile north of the center of section 36, T. 3 N., R. 16 W., of the Fairbanks Meridian. The location is accurate within 500 feet. |
Geologic descriptionBedrock at this occurrence is mostly Lower Cretaceous sandstone, shale, and siltstone (Reifenstuhl and others, 1998). The northwestern contact of the Tertiary Hot Springs granite pluton and its hornfels aureole is 1 mile to the south. Samples (97JD053 and 97SL032) of thinly laminated shale, and of limonite gossan in dolomite between Blowback and Little Beauty creeks contained one or more of the following maximum values: 814 parts per million (ppm) arsenic, 13.8 percent iron, 2,780 ppm phosphorus, and 2,260 ppm zinc (Liss and others, 1998). There is no record of exploration or mining at this site. | |
| Geologic map unit | (-150.712630855205, 65.0482385282282) |
|---|---|
| Mineral deposit model | Possibly epithermal, polymetallic, or mesothermal veins related to the Hot Springs granite pluton. |
| Workings or exploration | Samples (97JD053 and 97SL032) of thinly laminated shale, and of limonite gossan in dolomite between Blowback and Little Beauty creeks contained one or more of the following maximum values: 814 parts per million (ppm) arsenic, 13.8 percent iron, 2,780 ppm phosphorous, and 2,260 ppm zinc (Liss and others, 1998). There is no record of exploration or mining at this site. |
|---|---|
| Indication of production | None |
References | |
| Reporters | D.J. Szumigala (ADGGS) |
|---|---|
| Last report date | 5/24/2004 |