|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is at an elevation of about 4,200 feet in a creek draining the west wall of West Fork Glacier. The map site is in the NW1/3 of sec. 5, T. 17 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 2,000 feet. This is location 26 of Cox and others (1989), location A-74 of Balen (1990: OFR 34-90).|
Geologic descriptionThe are of this prospect is underlain by Upper Triassic, thin-bedded, commonly cross-bedded, carbonaceous shale, argillite, sandstone, and siltstone. The strata are cut by numerous dikes, sills, and plugs of altered diabase and gabbro (Wilson and others, 1998), and by Upper Cretaceous?-Lower Tertiary granites. The strata are complexly folded. The prospect is described as a polymetallic replacement deposit containing chalcopyrite, pyrrhotite, and sphalerite (Cox and others, 1989).
|Geologic map unit||(-147.591274012811, 63.4735522885516)|
|Mineral deposit model||Polymetallic replacement (Cox and Singer, 1986; model 19a)|
|Mineral deposit model number||19a|
|Workings or exploration||Surface exploration only, to date. Soil sampling, stream-sediment sampling, ground EM and magnetic geophysical surveys were conducted in the mid-1970s (unpublished report for the New Alaska Syndicate, 1977).|
|Indication of production||None|
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.
Cox, D.P., Light, T.D., Csejtey, Bela, Jr., and Campbell, D.L., 1989, Mineral resource assessment map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map, MF-2058-A, 1 sheet, scale 1:250,000.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|