Commodities
PrimaryGold
TertiaryLead, Zinc
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formPINCH AND SWELL
Ore controlAu Bearing Veins Are Localized Along Faults, Fractures And Shear Zones That Are Discordant With Regional Cleavage And A System Of Metamorphic Segregation Veins; The Auriferous Veins Principally Occupy The Axes And Upper Limbs Of Overturned Anticlinal Structures
Materials
Ore mineralsGalena, Gold, Sphalerite
GangueAlbite, Calcite, Chlorite, Pyrite, Quartz
Geology
Host rockSiltstone · Valdez Group
StructureTightly Compressed E-W Trending Folds, Overturned Towarrd The S. Pluge Gently W
Tectonic settingArea Is Considered To Be Part Of Accretionary Complex Known As Chugach Terrane
AlterationOxidation Is Evident To 100 Ft, Distinct Over Approximately 50 Ft
Economic & production
Development statusPast Producer
First production1910
Last production1940
Discovery year1906
Identification
Deposit ID10100959
MRDS IDA011459
RegionNA
Data scoreB
Coordinates61.12209, -146.56589
References
USGS BULL 443, P. 72-74, 76-77USGS BULL 622, P. 135, 152-153, 156, 170-172USGS BULL 989-E, P. 304-306USGS PP 542-C, P. C30USGS PP 610, P. 31-32USGS OFR 80-892A, B, LOC. 15ADGGS SR 33, P. 12PICKTHORN, WILLIAM JOSEPH, 1982, STABLE ISOTOPE AND FLUID INCLUSION STUDY OF THE PORT VALDEZ GOLD DISTRICT, SOUTHERN ALASKA: LOS ANGELES, CA, UCLA, M. S. THESIS, 66 P.BAG-OFR-80-892B-15