Unnamed (near Slate Creek)

The Unnamed (near Slate Creek) is a gold 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (near Slate Creek)

Commodity

Primary: Gold

Location

State: Alaska
District: Kougarok

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

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Clay and carbonate replacement of host rocks and quatz-calcite veining.

Rocks

Role: Host
Age Type: Host Rock
Age Young: Cretaceous

Analytical Data

Not available

Materials

Ore: Gold
Gangue: Calcite
Gangue: Kaolin
Gangue: Quartz
Gangue: Sericite

Comments

Comment (Geology): Age = Cretaceous Mineralization postdates regional mid-Cretaceous metamorphism. The host dikes may be Cretaceous in age like many felsic intrusive rocks in the Kigluaik Mountains to the north or possibly younger.

Comment (Reference): Primary Reference = Chapin, 1914

Comment (Workings): Workings / Exploration = A small surface open cut was used to explore this prospect in 1913 (Chapin, 1914).

Comment (Exploration): Status = Probably inactive

Comment (Geology): Geologic Description = Greenstone is cut by altered, fine-grained, felsic (?) dikes in this area; the feldspars in the dikes has been replaced by sericite and kaolin. A 3-foot-wide altered dike contains ferruginous calcite in fracture fillings and replacements that are in turn cut by quartz-calcite veinlets; free gold has been panned from crushed vein material (Chapin, 1914). Another 10-feet-wide dike nearby contains quartz, epidote, chlorite, albite, calcite, and tremolite(?). The greenstone host rock is completely recrystallized and contains hornblende, chlorite, epidote, garnet, pyrite, albite, rutile and sphene. Bedrock in this area is mostly part of a lower Paleozoic metasedimentary assemblage (Till and others, 1986).

Comment (Deposit): Model Name = Auriferous carbonate and quartz-carbonate veins and replacements in felsic (?) dikes.

Comment (Geology): Age = Host dikes may be Cretaceous.

References

Reference (Deposit): Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.

Reference (Deposit): Chapin, Theodore, 1914, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 592-J, p. 357-362.

Reference (Deposit): Cobb, E.H., 1972, Metallic resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, scale 1:250,000.

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