Unnamed (on upper Barnette Creek)

Prospect, Probably inactive

Commodities and mineralogy

Main commodities Cr
Other commodities Ni; Pt

Geographic location

Quadrangle map, 1:250,000-scale VA
Quadrangle map, 1:63,360-scale C-8
Latitude 61.7299
Longitude -146.8474
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is on the ridge crest on the north side of upper Barnette Creek. It is on a saddle at an elevation of about 6,000 feet very close to the northwest corner of section 3, T. 2 S., R. 9 W., of the Copper River Meridian. This prospect is probably located to within one-quarter mile. It is locality 83 of Winkler and others (1981 [OFR 80-892-B]).

Geologic setting

Geologic description

Winkler and others (1981 [OFR 80-892-B]) reported that test pits have been dug in serpentinized ultramafic rocks at this locality. The ultramafic rocks are blocks in a melange that is structurally below the Border Ranges fault (Winkler and others, 1981 [OFR 80-892-A]).
Geologic map unit (-146.849556321545, 61.7293932426705)
Mineral deposit model Podiform chromite? (Cox and Singer, 1986; model 8a)
Mineral deposit model number 8a?
Age of mineralization Not known; the ultramafic rocks were incorporated in melange which is intruded by undeformed hornblende andesite and dacite dikes of inferred Tertiary age (Winkler and others, 1981 [OFR 80-892-A]).
Alteration of deposit Serpentinization.

Production and reserves

Workings or exploration Surface test pits have been dug at this locality (Winkler and others, 1981 [OFR 80-892-B]).
Indication of production None

References