|Quadrangle map, 1:250,000-scale||ID|
|Quadrangle map, 1:63,360-scale||B-6|
|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)|
|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).|
|Indication of production||None|
McGimsey, R.G., Miller, M.L., and Arbogast, B.F., 1988, Paper version of analytical results, and sample locality map for rock samples from the Iditarod quadrangle, Alaska: U.S. Geological Survey Open-File Report 88-421-A, 110 p., 1 sheet, scale 1:250,000.
Miller, M.L., and Bundtzen, T.K., 1994, Generalized geologic map of the Iditarod quadrangle, Alaska showing potassium-argon, major oxide, trace element, fossil, paleocurrent, and archeological sample localities: U.S. Geological Survey Miscellaneous Field Studies Map MF-2219-A, 48 pages; 1 sheet, scale 1:250,000.
|Reporters||T.K. Bundtzen (Pacific Rim Geological Consulting, Inc.), M.L. Miller (U.S. Geological Survey); and C.C. Hawley (Hawley Resource Group)|
|Last report date||5/20/2003|