The East Vein is a lead, copper, gold, silver, and zinc 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: Lead, Copper, Gold, Silver, Zinc
Lat, Long: 63.21611, -149.64306
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East Vein MRDS details
Site Name
Primary: East Vein
Commodity
Primary: Lead
Primary: Copper
Primary: Gold
Primary: Silver
Primary: Zinc
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: The alteration is probably similar to that described for the adjacent Golden Zone and BLT, which consists of sericite, ankerite and quartz.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Reference): Primary Reference = Hawley and Clark, 1974
Comment (Deposit): Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
Comment (Geology): Geologic Description = The country rocks at the East Vein prospect are hornfelsed Triassic red-bed sedimentary strata. The depositis a quartz stringer lode that strikes N30E, dips steeply to the northwest, and has a strike length of over 1,000 feet. The lode ranges from 1 to 3 feet wide and contains discontinuous pods of arsenopyrite, chalcopyrite, galena, pyrite, and sphalerite. In Bryn Mawr Creek the vein contains up to 80% sulfides. Inplaces, the vein is in gradational contact with country rock. Sulfide composition varies over short distances from arsenopyrite-rich to galena-sphalerite-rich zones. Vein samples assayed 0.01-0.90 ounce of gold per ton, 1.2-8.5 ounces of silver per ton, 0.15-0.73% copper, up to 1.8% lead, and up to 17% zinc (Mulligan and others, 1967). The East Vein prospect is about 500 feet east-northeast of the Golden Zone mine (HE043), and probably is an extension of that deposit.
Comment (Workings): Workings / Exploration = All surface exploration. Vein samples assayed 0.01-0.90 ounce of gold per ton, 1.2-8.5 ounces of silver per ton, 0.15-0.73% copper, up to 1.8% lead, and up to 17% zinc (Mulligan and others, 1967).
Comment (Geology): Age = Probably Late Cretaceous.
Comment (Exploration): Status = Inactive
References
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.
Reference (Deposit): Hawley, C.C., and others, 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska. Contract No. JO166107: U.S. Bureau of Mines Open-File Report 24-78, 274 p., 12 sheets.
Reference (Deposit): Mulligan, J.J., Warfield, R.S., and Wells, R.R., 1967, Sampling a gold-copper deposit, Golden Zone Mine, south-central Alaska: U.S. Bureau of Mines Open-File Report 9-67, 59 p.
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