Unnamed (upper Blind Creek area)

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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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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