|Quadrangle map, 1:250,000-scale||IL|
|Quadrangle map, 1:63,360-scale||A-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is at an elevation of about 2,050 feet, east of the head of Lake Fork of Paint River and 0.9 mile northwest of hill 3169. The prospect is in the SW1/4 SW1/4 sec. 2, T. 11 S., R. 31 W., Seward Meridian. The site is locality 21 of Detterman and Cobb (1972), and is accurate within about 0.5 mile.|
Geologic descriptionThe country rock at this prospect is mainly Jurassic quartz diorite that locally contains roof pendants of Jurassic mafic and ultramafic igneous rocks (Detterman and Reed, 1980). The prospect consists of small bodies of magnetite-quartz and magnetite-rich skarn in the mafic and ultramafic rocks (Berg and Cobb, 1967; Detterman and Reed, 1980).
|Geologic map unit||(-154.468730831606, 59.2479146642467)|
|Mineral deposit model||Fe skarn (Cox and Singer, 1986, model 18d).|
|Mineral deposit model number||18d|
|Age of mineralization||Jurassic.|
|Alteration of deposit||Contact metasomatism: formation of replacement bodies of iron-rich skarn in mafic and ultramafic rocks intruded by quartz diorite.|
|Workings or exploration||Prospect was staked but little work was done (Berg and Cobb, 1967).|
|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.
Detterman, R.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Iliamna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-364, 1 sheet, scale 1:250,000.
|Reporters||C.C. Hawley, Hawley Resource Group, Anchorage, Alaska|
|Last report date||6/10/2003|