| Quadrangle map, 1:250,000-scale | DL |
|---|---|
| Quadrangle map, 1:63,360-scale | A-2 |
| Latitude | 68.09 |
| Longitude | -163.07 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | The Surprise prospect is at an elevation of about 800 feet on the south side of a tributary to the Wulik River. The map site is in section 17, T. 31 N., R.19 W., of the Kateel River Meridian. Location is accurate within a one mile radius. |
Geologic descriptionThe Surprise prospect consists of barite and sulfide mineralization in a Mississippian to Permian black shale horizon (J. Britton, oral communication, 1998). Sedimentary exhalative Pb-Zn type mineralization was intersected in 3 drill holes. Grades of approximately 3 percent combined lead and zinc occurred over intervals ranging from 10 to 24 feet. | |
| Geologic map unit | (-163.072956788624, 68.0893440542739) |
|---|---|
| Mineral deposit model | Sedimentary exhalative Zn-Pb (Cox and Singer, 1986; model 31a). |
| Mineral deposit model number | 31a |
| Age of mineralization | Mississippian to Permian. |
| Workings or exploration | Three core holes were drilled on the prospect by GCO. |
|---|---|
| Indication of production | None |
| Reporters | Anita Williams (Anchorage, AK) |
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| Last report date | 12/21/1999 |