Unnamed (on Niblack Islands)

Occurrences, Probably inactive

Commodities and mineralogy

Main commodities Cu

Geographic location

Quadrangle map, 1:250,000-scale PE
Quadrangle map, 1:63,360-scale A-1
Latitude 56.0392
Longitude -132.1031
Nearby scientific data Find additional scientific data near this location
Location and accuracy The coordinates are at the approximate center of ten claims at five locations that were staked for copper in 1956; apparently they have not been active since.

Geologic setting

Geologic description

Ten claims at five locations were staked for copper in 1956 on the Niblack Islands in Ernest Sound; apparently they have not been active since (U.S. Bureau of Mines, 1980). A brief examination by the USGS in 1979 did not reveal any signs of mineral deposits (Grybeck, Berg, and Karl, 1984, locality 79). Rocks in the vicinity consist largely of migmatite and granite (Brew and others, 1984). The islands were also searched for indications of mineralization by Still and others, 2002; they found nothing other than a sample of granite that may have had a copper content a bit above background.
Geologic map unit (-132.104785514034, 56.0388576225668)

Production and reserves

Workings or exploration Ten claims at five locations were staked for copper in 1956 on the Niblack Islands in Ernest Sound; apparently they have been not active since (U.S. Bureau of Mines, 1980). Several attempts by government geologists and engineers to find evidence of mineralization have been fruitless.
Indication of production None

References

References

Reporters D.J. Grybeck (Port Ludlow, WA)
Last report date 4/8/2007