Unnamed (west of Walla Walla Creek)

The Unnamed (west of Walla Walla Creek) is a antimony and 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

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Site Name

Primary: Unnamed (west of Walla Walla Creek)

Commodity

Primary: Antimony
Primary: Gold

Location

State: Alaska
District: Council

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: Small amounts of limonite staining on joints and fratures was described by Smith and Eakin (1911).

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Stibnite
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Miller and Grybeck, 1973

Comment (Geology): Geologic Description = Exploration workings have been dug on quartz-stibnite veinlets at this locality. This prospecting was first reported by Smith and Eakin (1911) who noted this as a small occurrence with a trace of gold; limonite staining on joints and fractures was idenitified but no distinct vein or lode was observed. Sampling of dump materials by Miller and Grybeck (1973) confirmed the presence of stibnite (greater than 10,000 ppm Sb) but gold was not detected. The early exploration workings prior to1909 included a 25-foot-long trench and a 100-foot-long adit (Smith and Eakin, 1911). Bedrock is metasedimentary rocks that include lower Paleozoic calc-schist (Till and others, 1986). The metasedimentary rocks are on the east flank and within 0.4 miles of the Darby pluton but thermal metamorphism has not been described. High angle faults may be important structural elements in this area.

Comment (Exploration): Status = Inactive

Comment (Deposit): Model Name = Quartz-stibnite veinlets (?) in metasedimentary rocks.

Comment (Workings): Workings / Exploration = The early exploration workings prior to 1909 included a 25-foot-long trench and a 100-foot-long adit (Smith and Eakin, 1911).

Comment (Geology): Age = Not known; probably mid-Cretaceous, the age of the nearby Darby pluton (K/Ar ages for the Darby pluton are 88.3 +/- 1.5 and 92.8 +/- 2.6 Ma, Berry and others, 1976), or younger.

References

Reference (Deposit): Miller, T.P., Grybeck, D.J., Elliott, R.L., and Hudson, T.L., 1972, Preliminary geologic map of the eastern Solomon and southeastern Bendeleben quadrangles, eastern Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-256, 11 p.

Reference (Deposit): Berry, A.L., Dalrymple, G.B., Lamphere, M.A., and Von Essen, J.C., 1976, Summary of miscellaneous potassium-argon age determinations, U. S. Geological Survey, Menlo Park, California, for the years 1972-1974: U.S. Geological Survey Circular 727, 13 p.

Reference (Deposit): Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.

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): Smith, P.S. and Eakin, H.M., 1911, Mineral resources of Alaska 1910: U.S. Geological Survey Bulletin 480, 333 p..

Reference (Deposit): Miller, T.P., and Grybeck, D.J., 1973, Geochemical survey of the eastern Solomon and southeastern Bendeleben quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 553, 115 p.

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