The Unnamed (upper Blind Creek area) is a 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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Unnamed (upper Blind Creek area) MRDS details
Site Name
Primary: Unnamed (upper Blind Creek area)
Commodity
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: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Polymetallic veins
Model Name: Hot-spring Au-Ag
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Pyritization; iron-staining.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Reference): Primary Reference = Hawley and Clark, 1974
Comment (Deposit): Other Comments = This deposit is similar in some ways to the Bunkhouse and Lupin deposits (HE039 and HE038).
Comment (Geology): Geologic Description = The country rocks in the area of this occurrence are Triassic sedimentary strata that have been strongly faulted along a strand of the Blind Creek fault. The fault zone is up to 200 feet wide and approximately 3000 feet long; it is locally pyritized and limonite stained. The deposit consists of quartz-pyrite veins. The quartz is colloform in places. Surface samples from a quartz vein contained 0.06 ppm to 0.30 ppm gold and 0.5 to 1.5 ppm silver (Hawley and Clark, 1968).
Comment (Workings): Workings / Exploration = Surface samples only. Surface samples from a quartz vein contained 0.06 ppm to 0.30 ppm gold and 0.5 to 1.5 ppm silver (Hawley and Clark, 1968).
Comment (Deposit): Model Number = 22c, 25a
Comment (Deposit): Model Name = Polymetallic vein or Hot-spring Ag-Au (Cox and Singer, 1986; models 22c, 25a)
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Hawley, C.C., and Clark, A.L., 1968, Occurence of gold and other metals in the upper Chulitna district, Alaska: U.S. Geological Survey Circular 564, 21 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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