|Quadrangle map, 1:250,000-scale||ID|
|Quadrangle map, 1:63,360-scale||C-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 2,100 feet, about 1.5 mile north-northwest of Camelback Mountain. It is about 0.3 mile east-northeast of the center of section 32, T. 29 N., R. 44 W., of the Seward Meridian. The location is accurate.|
Geologic descriptionThis occurrence is an altered zone in sandstone and shale of the Upper Cretaceous Kuskokwim Group adjacent to a mafic dike that has been altered to silica and carbonate minerals (Bundtzen, Laird, and Lockwood, 1988; Miller and Bundtzen, 1994; Bundtzen and Miller, 1997). One sample of altered mafic dike contained 2,900 parts per billion mercury (McGimsey and others, 1988; Miller, Bundtzen, and Gray, 2005).
|Geologic map unit||(-157.37434834786, 62.5615670949808)|
|Alteration of deposit||Silica-carbonate alteration of dike.|
|Workings or exploration||The site was sampled by the Alaska Division of Geological and Geophysical Surveys in 1983 (McGimsey and others, 1988; Miller, Bundtzen, and Gray, 2005).|
|Indication of production||None|
Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous-early Tertiary igneous rocks of southwestern Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 242-286.
Bundtzen, T.K., Laird, G.M., and Lockwood, M.S., 1988, Geologic map of the Iditarod C-3 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 96, 13 p., 1 sheet, scale 1:63,360.
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); M.B. Werdon (DGGS)|
|Last report date||8/26/2017|