|Quadrangle map, 1:250,000-scale||IL|
|Quadrangle map, 1:63,360-scale||D-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 200 feet in an east tributary to Iniskin Bay. It is in the SE1/4 sec. 8, T. 5 S., R. 24 W., Seward Meridian. The location is accurate within 0.5 mile. This occurrence is location 11 of Detterman and Cobb (1972).|
Geologic descriptionThis occurrence consists of small bodies of magnetite-bearing skarn in calcic rocks of the Lower Jurassic Talkeetna Formation about two miles from a Jurassic granitic pluton (Detterman and Reed, 1980). The Talkeetna Formation consists generally of andesite flows, agglomerate, tuff, volcanic breccia, and minor sedimentary rocks (Detterman and Hartsock, 1966).
|Geologic map unit||(-153.395932564252, 59.7512533610373)|
|Mineral deposit model||Fe skarn (Cox and Singer, 1986; model 18d).|
|Mineral deposit model number||18d|
|Age of mineralization||Probably Jurassic, during waning stages of intrusion of Jurassic granitic rocks.|
|Alteration of deposit||Formation of skarn in calcic rocks.|
|Workings or exploration||Exploration probably consists only of regional geologic mapping (Detterman and Hartsock, 1966).|
|Indication of production||None|
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.
Detterman, R.L., and Hartsock, J.K., 1966, Geology of the Iniskin-Tuxedni region, Alaska: U.S. Geological Survey Professional Paper 512, 78 p.
|Reporters||C.C. Hawley, Hawley Resource Group, Anchorage, Alaska|
|Last report date||6/3/2003|