Unnamed (northwestern tributary to Jonah Bay)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale AN
Quadrangle map, 1:63,360-scale A-2
Latitude 61.04
Longitude -147.68
Nearby scientific data Find additional scientific data near this location
Location and accuracy Nearly two miles up an unnamed stream flowing southward into the northwest corner of Jonah Bay. Accurate within 1 mile. Locality P-33 of Jansons and others (1984) and locality P-35 of Hoekzema and Fechner (1986).

Geologic setting

Geologic description

According to Jansons and others (1984), fine gold is disseminated in poorly washed fluvial glacial gravels derived from a glacier on north and east flanks of Unakwik Peak. An alluvium sample contained 0.00013 oz Au/cubic yard. The bedrock on Unakwik Peak is metasedimentary rocks of the Late Cretaceous Valdez Group.
Geologic map unit (-147.68205841259, 61.039471883659)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration No workings are known to have occurred to date and mineral development potential is reported to be low. An alluvial sample contained 0.00013 oz Au/cubic yard (Jansons and others, 1986).
Indication of production None

References

MRDS Number A106192

References

Reporters D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS)
Last report date 7/30/1998