Unnamed (north of Kanatak Lagoon)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Fe

Geographic location

Quadrangle map, 1:250,000-scale UG
Quadrangle map, 1:63,360-scale C-1
Latitude 57.5
Longitude -156.1
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located just north of Kanatak Lagoon and south of Mount Becharof in sec. 3, T. 31 S., R. 42 W., of the Seward Meridian (MacKevett and Holloway, 1977, locality 4; Church and others, 1989: MF-1539I, locality 3). Location is accurate to within 2 miles.

Geologic setting

Geologic description

At this occurrence a quartz diorite pluton of Pliocene age (Wilson and Shew, 1992) cuts sedimentary rocks of the Jurassic Naknek Formation. Case and others (1988) report large magnetic anomalies associated with the pluton. It has been suggested that the anomalies are due to magnetite-rich segregations in mafic phases of the pluton (MacKevett and Holloway, 1977). Skarn-type mineralization may also account for the anomalies. In the past the area has been staked as lode claims for iron.
Geologic map unit (-156.10207996269, 57.4992852164824)
Age of mineralization Pliocene?

Production and reserves

Workings or exploration In the past the area has been staked as lode claims for iron (U.S. Bureau of Mines, 1973).
Indication of production None

Additional comments

This mineral occurrence is located on land selected by the Koniag Native Corporation.

References

MRDS Number 10308454

References

U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims: U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).
Reporters S.H. Pilcher (Anchorage)
Last report date 2/1/2000