|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 4,100 feet on the south wall of the valley of lower Butte Creek. The map site is about 1.2 miles northwest of VABM 5896 (Way), in the NW1/4 of sec. 1, T. 22 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 36 of Clark and Cobb (1972).|
Geologic descriptionThe area of this occurrence is underlain by Middle or Upper Triassic Nikoli Greenstone, Middle Triassic to Upper Pennsylvanian metasedimentary rocks, and numerous diabasic and gabbroic dikes and sills (Wilson and others, 1998). The occurrence is near a thrust fault that separates the two bedded units, and consists of pyrite and chalcopyrite disseminated in the metasedimentary rocks (Saunders, 1961).
|Geologic map unit||(-147.673255243567, 63.040547487476)|
|Mineral deposit model||Cyprus massive sulfide (Cox and Singer, 1986; model 24a)|
|Mineral deposit model number||24a|
|Age of mineralization||The sulfide minerals probably are syngenetic with their Triassic-Upper Pennsylvanian host rocks.|
|Workings or exploration||Surface sampling only.|
|Indication of production||None|
Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p.
Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-394, 1 sheet, scale 1:250,000.
Kaufman, M.A., 1964, Geology and mineral deposits of the Denali-Maclaren River area, Alaska: Alaska Division of Mines and Minerals Geologic Report 4, 15 p., 1 sheet, scale 1:125,000.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|