| Quadrangle map, 1:250,000-scale | IL |
|---|---|
| Quadrangle map, 1:63,360-scale | D-2 |
| Latitude | 59.7519 |
| Longitude | -153.3938 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | This occurrence is at an elevation of about 200 feet in an east tributary to Iniskin Bay. It is in the SE1/4 sec. 8, T. 5 S., R. 24 W., Seward Meridian. The location is accurate within 0.5 mile. This occurrence is location 11 of Detterman and Cobb (1972). |
Geologic descriptionThis occurrence consists of small bodies of magnetite-bearing skarn in calcic rocks of the Lower Jurassic Talkeetna Formation about two miles from a Jurassic granitic pluton (Detterman and Reed, 1980). The Talkeetna Formation consists generally of andesite flows, agglomerate, tuff, volcanic breccia, and minor sedimentary rocks (Detterman and Hartsock, 1966). | |
| Geologic map unit | (-153.395932564252, 59.7512533610373) |
|---|---|
| Mineral deposit model | Fe skarn (Cox and Singer, 1986; model 18d). |
| Mineral deposit model number | 18d |
| Age of mineralization | Probably Jurassic, during waning stages of intrusion of Jurassic granitic rocks. |
| Alteration of deposit | Formation of skarn in calcic rocks. |
| Workings or exploration | Exploration probably consists only of regional geologic mapping (Detterman and Hartsock, 1966). |
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| Indication of production | None |
| MRDS Number | A013041 |
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References | |
| Reporters | C.C. Hawley, Hawley Resource Group, Anchorage, Alaska |
| Last report date | 6/3/2003 |