|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 2,050 feet on a saddle that separates two forks of Moose Creek . The occurrence is about 0.7 mile northwest of hill 2581 and about 0.4 mile east of the center of section 1, T. 30 N., R. 42 W., of the Seward Meridian. The location is accurate.|
Geologic descriptionThis occurrence contains two types of mineralization: 1) an iron-oxide-stained quartz breccia zone in altered tuff of the Beaver Mountains volcanic field; and 2) sheeted quartz veins in beds of altered sandstone in the Beaver Mountains volcanic field (Bundtzen, Laird, and Lockwood, 1988; Miller and Bundtzen, 1988; Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). The size of the occurrence is unknown. Grab samples contained up to 200 parts per billion (ppb) silver, 7,000 ppb mercury, 110 parts per million (ppm) arsenic, and 32 ppm antimony (Bundtzen, Laird, and Lockwood, 1988; McGimsey and others, 1988).
|Geologic map unit||(-157.060296829489, 62.7190113095141)|
|Mineral deposit model||Polymetallic vein? (Cox and Singer, 1986; model 22c).|
|Mineral deposit model number||22c?|
|Alteration of deposit||Silicification with introduction of chalcedony and development of iron oxides. alteration.|
|Workings or exploration||Surface sampling was conducted by the Alaska Division of Geological and Geophysical Surveys and the U.S. Geological Survey in the 1980s (Bundtzen, Laird, and Lockwood, 1988; McGimsey and others, 1988).|
|Indication of production||None|
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., 1988, Right lateral offset solution for the Iditarod-Nixon Fork fault, western Alaska: U.S. Geological Survey Circular 1016, p. 99-103.
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||5/18/2003|