Quadrangle map, 1:250,000-scale | ID |
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Quadrangle map, 1:63,360-scale | B-6 |
Latitude | 62.38525 |
Longitude | -158.96036 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is near the top of hill 680, about 5 miles north of the Reindeer River. The occurrence is near the center of section 32, T. 27 N., R. 52 W., of the Seward Meridian. The location is accurate. |
Geologic descriptionThis occurrence is a zone of intense iron-oxide alteration in sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). As exposed in rubble, veins of secondary hematite of uncertain extent and orientation crosscut the sandstone beds. Grab samples of the hematite-rich veins contain up to 150 parts per million arsenic, and trace amounts of antimony, mercury, silver, and gold (McGimsey and others, 1988). | |
Geologic map unit | (-158.962751784793, 62.3845496483705) |
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Mineral deposit model | Hematite veins in sandstone. |
Alteration of deposit | Secondary hematite and intense iron oxide staining. |
Workings or exploration | Samples were collected by the U.S. Geological Survey in 1985 (McGimsey and others, 1988). |
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Indication of production | None |
References | |
Reporters | T.K. Bundtzen (Pacific Rim Geological Consulting, Inc.), M.L. Miller (U.S. Geological Survey); and C.C. Hawley (Hawley Resource Group) |
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Last report date | 5/20/2003 |