Unnamed (near Long Lake)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Fe
Ore minerals magnetite

Geographic location

Quadrangle map, 1:250,000-scale GU
Quadrangle map, 1:63,360-scale D-1
Latitude 62.82
Longitude -144.17
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at the head of an unnamed headwater tributary of Ahtell Creek about three-quarters of a mile north of the east end of Long Lake. It is in the SE1/4NW1/4, section 18, T. 12 N., R. 7 E., Copper River Meridian.

Geologic setting

Geologic description

The occurrence is associated with the Long Lake diorite phase of the Pennsylvanian and Permian, Ahtell pluton (Richter, 1966). An occurrence of magnetite is reported by WGM Inc. (1980). No specific information is available.
Geologic map unit (-144.172198895246, 62.8196069624617)
Mineral deposit model Iron skarn? (Cox and Singer, 1986; model 18d?).
Mineral deposit model number 18d?
Age of mineralization Emplaced subseqent to or is related to the border phase of the Pennsylvanian to Permian, Ahtell pluton.

Production and reserves

Workings or exploration Only exposed in outcrop.
Indication of production None

Additional comments

Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.

References

MRDS Number 10307482

References

WGM Inc., 1980, 1979 Summary report of gold potential, Slana District, Ahtna project: WGM Inc., 10 p., map, scale 1:63,360. (Report held by Ahtna Mineral Co., Anchorage, Alaska).
Reporters W.T. Ellis (Alaska Earth Sciences), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (U.S. Geological Survey)
Last report date 12/6/2000