The Little Vein is a copper, gold, and silver 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
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Little Vein MRDS details
Site Name
Primary: Little Vein
Secondary: Little Lead
Commodity
Primary: Copper
Primary: Gold
Primary: Silver
Location
State: Alaska
District: Valdez Creek
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
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Sericitization.
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Paleocene
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Pyrite
Gangue: Quartz
Gangue: Sericite
Comments
Comment (Geology): Age = Synchronous with the Golden Zone mineralization, dated as Late Cretaceous.
Comment (Deposit): Other Comments = the Little Vein was reached from underground workings at the Golden Zone mine.
Comment (Geology): Geologic Description = The Little Vein prospect is about 200 feet south of the Golden Zone breccia pipe (HE043). It is a quartz-sulfide vein and stringer lode that carries good, but erratic, gold values. The deposit is at the sheared contact of a quartz-biotite porphyry dike that intrudes hornfelsed Triassic sedimentary rocks. The sulfide minerals are arsenopyrite, pyrite, and chalcopyrite. Assay values range from 0.16 to 2.58 ounces of gold per ton, 2.4 to 11.6 ounces of silver per ton , and up to 33.22% arsenic (Ross, 1933). The Little Vein deposit probably is a continuation of the deposit at the Golden Zone mine.
Comment (Exploration): Status = Active
Comment (Reference): Primary Reference = Hawley and Clark, 1974
Comment (Workings): Workings / Exploration = There has been limited exploration by prospect pits and a short, now caved adit. Assay values range from 0.16 to 2.58 ounces of gold per ton, 2.4 to 11.6 ounces of silver per ton , and up to 33.22% arsenic (Ross, 1933).
Comment (Deposit): Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
References
Reference (Deposit): Ross, C.P., 1933, The Valdez Creek mining district, Alaska: U.S. Geological Survey Bulletin 849, p. 289-467.
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
Reference (Deposit): Hawley, C.C., and Clark, A.L., 1974, Geology and mineral deposits of the upper Chulitna district, Alaska: U.S. Geological Survey Professional Paper 758-B, p. 1-47, 2 sheets, scale 1:12,000 and 1:48,000.
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