|Quadrangle map, 1:250,000-scale||IL|
|Quadrangle map, 1:63,360-scale||C-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 2,000 feet, about 1.5 miles southwest of the 3,028-foot summit of The Cone. The occurrence is near the center of the W1/2 NE1/4 sec. 4, T. 8 S., R. 27 W., Seward Meridian. The ocurrence is the same as number 23 of Detterman and Cobb (1972), and is accurate within about 0.5 mile.|
Geologic descriptionThis occurrence consists of magnetite in Jurassic quartz diorite that locally contains granodiorite and diorite phases (Detterman and Reed, 1980). The magnetite occurs as disseminations, veins, and lenses. The occurrence is possibly large but low grade (Berg and Cobb, 1967).
|Geologic map unit||(-153.878236865166, 59.5153338742276)|
|Age of mineralization||Probably Jurassic, the age of the host rocks.|
|Workings or exploration||Berg and Cobb (1967) reported that the occurrence had been staked. No workings are known at the site.|
|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||6/8/2003|