Unnamed (on the western part of Amchitka Island) (ARDF #RI002) Fe

Unnamed (on the western part of Amchitka Island)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Fe
Other commodities	Cu; Pb; Zn
Ore minerals	pyrite

Geographic location

Quadrangle map, 1:250,000-scale	RI
Quadrangle map, 1:63,360-scale	B-4
Latitude	51.6
Longitude	178.8
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This site represents various locations on the western one-third of Amchitka Island. Specific locations are not available.

Geologic setting

Geologic description Pyritic zones are abundant on the western one-third of Amchitka Island. Pyrite in quantities up to one-third of the volume of the rock occurs in volcanic rock of the Amchitka Formation and in sedimentary rocks of the Banjo Point Formation (Powers, 1960, p. 541). The pyrite mineralization tends to follow zones of fractures of diverse strike. One sample assayed trace copper, lead, and zinc.
Geologic map unit	(-178.802597188528, 51.5985107133868)
Age of mineralization	Tertiary.

Production and reserves

Indication of production	None
Additional comments Site is located in Alaska Maritime Natural Wildlife Refuge.

References

MRDS Number	10308193
References Powers, H.A., Coats, R.R., and Nelson, W.H., 1960, Geology and submarine physiography of Amchitka Island, Alaska: U.S. Geological Survey Bulletin 1028-P, p. 521-554, 1 sheet, scale 1 inch = 1.5 miles.
Reporters	S.H. Pilcher (Anchorage)
Last report date	1/24/2000