|Quadrangle map, 1:250,000-scale||LG|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Cobb (1972, MF-413), loc. 18, 19; NE1/4 sec. 8, T. 2 N., R. 1 E., of the Fairbanks Meridian. This prospect is on the ridge between Seattle Creek and Moose Creek No. 2, about 2.5 miles southwest of the summit of Pedro Dome.|
Geologic descriptionA 3-foot zone of scheelite was found in weathered schist; most was disseminated, but there were a few high-grade spots. The scheelite zone strikes N 44 E and dips 45 SE. The average tungsten tri-oxide content was estimated at 0.5 to 1% (Joesting, 1943). Byers (1957) reported that channel samples across 4.5 feet of the disseminated scheelite zone contained 0.48% tungsten tri-oxide. A fine-grained quartz diorite dike was found 8 feet below the surface in the bottom of a small pit sunk in the same trench where the scheelite was encountered (Joesting, 1943). Bedrock is quartz-mica schist and quartzite (Byers, 1957).
|Geologic map unit||(-147.585443151195, 65.0185726536359)|
|Mineral deposit model||Contact metamorphic tungsten deposit (Cox and Singer, 1986; model 14a).|
|Mineral deposit model number||14a|
|Workings or exploration||Development consists of an open cut, 20 feet long, and a small pit in the floor of the cut (Byers, 1957).|
|Indication of production||None|
|MRDS Number||A015412; D002646; D002648|
Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p.
Byers, F.M., Jr., 1957, Tungsten deposits in the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 1024-I, p. 179-216.
Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.
Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000.
Cobb, E.H., 1975, Mineral resources of Alaska, in Yount, M.E., ed., U.S. Geological Survey Alaska Program, 1975: U.S. Geological Survey Circular 722, p. 37.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p.
Joesting, H.R., 1943, Strategic mineral occurrences in interior Alaska, supplement to pamphlet No. 1: Alaska Territorial Department of Mines Pamphlet 2, 31 p.
|Reporters||C.J. Freeman, J.R. Guidetti Schaefer (Avalon Development Corporation)|
|Last report date||5/4/1999|