|Quadrangle map, 1:250,000-scale||MG|
|Quadrangle map, 1:63,360-scale||A-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The unnamed occurrence is located in a low saddle overlooking the Middle Fork of the Kuskokwim River at an elevation of 3,000 feet (915 m) in the SW1/4 sec. 27, T. 25 N., R. 28 W., of the Seward Meridian. The reporter visited the site in 1998 at station no. 98BT440.|
Geologic descriptionThis unnamed occurrence is a skarn zone developed in a highly sheared limestone of Late Triassic age, a part of the Mystic subterrane (Gilbert and others, 1988; Bundtzen, Harris, and Gilbert, 1997). Massive pyrite bands averaging 8 centimeters in thickness occur in association with epidote-quartz gangue within a 10 meter wide skarn zone near a gabbro-diorite sill. One grab sample contained 10.75 percent iron, 100 ppm molybdenum, and 1.25 grams/tonne silver (T.K. Bundtzen and G.M. Laird, written communication, 1998).
|Geologic map unit||(-154.452238078946, 62.2273672141037)|
|Mineral deposit model||Iron-rich skarn (Cox and Singer, 1986; model 18a).|
|Mineral deposit model number||18a|
|Workings or exploration||This unnamed occurrence was investigated in 1998. One grab sample contained 10.75 percent iron, 100 ppm molybdenum, and 1.25 grams/tonne silver (T.K. Bundtzen and G.M. Laird, written communication, 1998).|
|Indication of production||None|
Bundtzen, T.K., Harris, E.E., and Gilbert, W.G., 1997, Geologic Map of the eastern McGrath quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 97-14, 34 p., 1 sheet, scale 1:125,000.
|Reporters||T.K. Bundtzen (Pacific Rim Geological Consulting)|
|Last report date||12/22/1998|