Alaska
Occurrence

Unnamed On Blashke Islands

Alaska, United States
ChromiumCopperNickelPGE
⌖ Show on mapUSGS source ↗
Commodities
PrimaryChromium, Copper, Nickel, PGE
Commodity typeM
Deposit
Model23: Alaskan Cr-Pt (PGE)
Deposit sizeN
Orebody formSEE DEPOSIT DESCRIPTION COMMENTS
Economic & production
Development statusOccurrence
Identification
Deposit ID10003646
MRDS IDA106412
RegionNA
Data scoreC
Coordinates56.12167, -132.88962
References
Kennedy, G. C., and Walton, M. S., Jr., 1946, Geology and associated mineral deposits of some ultra basic rock bodies in southeastern Alaska: U. S. Geological Survey Bulletin 947-D, p. 65-84.Walton, M. S., 1951, The Blashke Island ultrabasic complex with notes on related areas in southeastern Alaska: U. S. Geological Survey Open-File Report 126, 266 p.Taylor, H.P., 1967, The zoned ultramafic complexes of southeastern Alaska, in Wyllie, P.J., ed., UIltramafic and related rocks: New York, J. Wiley and Sons, p. 97-121.Clark, A. L., and Greenwood, W. R., 1972 Geochemistry and distribution of platinum-group metals in mafic to ultramafic complexes of southern and southeastern Alaska, in Geological Survey Research: U.S. Geological Survey Professional Paper 800-C p. C157-C160.Cobb, E. H., 1972, Metallic mineral resources map of the Petersburg quadrangle, Alaska: U. S. Geological Survey Miscellaneous Field Studies Map MF-415, 1 sheet, scale 1:250,000.Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Petersburg quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-870.Himmelberg, G.R., Loney, R.A., and Craig, J.T., 1986, Petrogenesis of the ultramafic complex at the Blashke Islands, southeastern Alaska: U. S. Geological Survey Bulletin 1662, 14 p.Himmelberg, G.R., and Loney, R.A., 1995, Characteristics and petrogenesis of Alaskan-type ultramafic-mafic intrustions, southeastern Alaska: U. S. Geological Survey Professional Paper 1564, 47 p.Maas, K. M., Bittenbender, P. E., and Still, J. C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U. S. Bureau of Mines Open-File