1. Mineral Resources
  2. Online Spatial Data
  3. Alaska Resource Data File (ARDF)

Unnamed (Little Nelchina North)

Occurrence, Inactive

Map
KML
XML
GeoJSON

Commodities and mineralogy

Main commodities Au; Zn
Other commodities Cr; Cu
Ore minerals magnetite

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale A-2
Latitude 62.1288
Longitude -147.5014
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is said to be at an elevation of about 4,150 feet, north of the Little Nelchina River and 4 miles east of Horsepasture Pass (Baedecker and others, unpub. data, 1998). It is in the NE1/4 sec. 31, T. 24 N., R. 11 E., Seward Meridian, but the accuracy of the location is unknown.

Geologic setting

Geologic description

This occurrence consists of a magnetite-rich part of an Upper Jurassic sandstone (Baedecker and others, unpub. data, 1998). U.S. Geological Survey rock samples contain up to 1,000 parts per million zinc, 0.4 part per million gold, 290 parts per million chromium, and 280 parts per million copper.
Geologic map unit (-147.503608848819, 62.1282970647783)

Production and reserves

Workings or exploration Only limited surface sampling by U.S. Geological Survey.
Indication of production None

References

References

Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000.
Reporters R.K. Rogers (U. S. Geological Survey contractor)
Last report date 10/4/2002