The Virginia is a gold, zinc, lead, and copper mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation:
Commodity: Gold, Zinc, Lead, Copper
Lat, Long: 56.04, -130.04194
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Virginia MRDS details
Site Name
Primary: Virginia
Commodity
Primary: Gold
Primary: Zinc
Primary: Lead
Primary: Copper
Location
State: Alaska
District: Hyder
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Polymetallic veins
Model Name: Skarn Zn-Pb
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Local contact metamorphism of greenstone; greenstone is impregnated with sulfide minerals
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Pyrrhotite
Ore: Sphalerite
Ore: Tetrahedrite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Workings): Workings / Exploration = Prospect was explored in 1920's by 600-700 feet of crosscuts and tunnels. ? Selected sampes of the ore reportedly assayed as high as 4.5 oz Au per ton; average Au content was about 0.25 oz per ton.
Comment (Deposit): Other Comments = Deposit originally staked in 1919.?
Comment (Geology): Geologic Description = The country rocks in the area of the Virginia prospect are pelitic metasedimentary and subordinate andesitic metavolcanic (greenstone) strata of the Jurassic or older Mesozoic Hazelton Group; the Triassic Texas Creek Granodiorite, which underlies and locally intrudes the Hazelton; the Eocene Boundary Granodiorite, which intrudes the Hazelton and Texas Creek rocks; and still-younger Tertiary lamprophyre dikes that cut all the other rocks (Smith, 1973, 1977; Koch, 1996).? the deposit (Buddington, 1925, p. 74, 84; 1929, p. 43, 88-89) is in a mineralized shear zone in porphyritic greenstone cut by granodiorite and lamprophyre(?) dikes. An interval 12-16 feet wide in the 50-foot wide shear zone contains an oreshoot of nearly solid sulfides, accompanied by quartz gangue. The sulfides are pyrrhotite, sphalerite, pyrite, and a little galena and tetrahedrite. The greenstone also contains disseminated sulfide minerals, stringers of quartz, calcite, and sulfide minerals. Near contacts of granodiorite porphyry dikes, the greenstone also contains the contact-metamorphic minerals garnet and epidote. A little chalcopyrite occurs along with the other sulfides in some of the epidote-rich greenstone.?Selected samples of the ore reportedly assayed as high as 4.5 oz Au per ton.
Comment (Reference): Primary Reference = Buddington, 1929
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Polymetallic veins; Skarn Zn-Pb
Comment (Deposit): Model Number = 22c; 18c
References
Reference (Deposit): Buddington, A.F., 1925, Mineral investigations in southeastern Alasaka: U.S. Geological Survey Bulletin 773, p. 71-139.
Reference (Deposit): Buddington, A.F., 1929, Geology of Hyder and vicinity, southeastern Alaska, with a reconnaissance of Chickamin River: U.S. Geological Survey Bulletin 807, 124 p.
Reference (Deposit): Smith, J.G., 1973, A Tertiary lamprophyre dike province in southeastern Alaska: Canadian Journal of Earth Sciences, v. 10, p. 408-420.
Reference (Deposit): Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p.
Reference (Deposit): Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.
Reference (Deposit): Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.
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