Dorothy Creek

The Dorothy 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

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Site Name

Primary: Dorothy Creek

Commodity

Primary: Gold
Secondary: Antimony
Secondary: Tungsten

Location

State: Alaska
District: Nome

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Scheelite
Ore: Stibnite

Comments

Comment (Reference): Primary Reference = Collier and others, 1908

Comment (Workings): Workings / Exploration = Dorothy Creek was placer mined as early as 1900 and by 1903 about 44,000 dollars or 2,125 ounces of gold had been produced (Collier and others, 1908). Some mining took place as recently as 1940 (Smith,1942).

Comment (Geology): Age = Quaternary.

Comment (Geology): Geologic Description = Dorothy Creek was placer mined for gold as early as 1900, and by 1903 about 44,000 dollars or 2,125 ounces of gold had been produced (Collier and others, 1908). Some mining took place as recently as 1940 (Smith, 1942). The placer concentrate contained bladed stibnite crystals and minor scheelite (Coats, 1944; Anderson, 1947).? Bedrock in the Dorothy Creek drainage is mainly metasedimentary schist that lies structurally above a regionally extensive marble unit (Hummel, 1962 [MF 248]). Small orthogneiss bodies, greenstone bodies, and numerous quartz veins are present in the schist (Collier and others, 1908; Hummel, 1962 [MF 248]). The Wyoming prospect (NM110) is apparently an arsenopyrite- and (or) pyrite-bearing vein exposed along Dorothy Creek, and antimony occurrences (NM068, NM069) and the Bulk Gold prospects (NM071, NM072) occur on the ridge along the southwest headwaters of Dorothy Creek.

Comment (Production): Production Notes = The produced gold reportedly assayed 14 to 15 dollars per ounce (Collier and others, 1908). The early mining was said to have been expensive and little profit was made (Moffit, 1913).

Comment (Exploration): Status = Active?

Comment (Deposit): Model Name = Placer Au (Cox and Singer, 1986; model 39a).

References

Reference (Deposit): Hummel, C.L., 1962, Preliminary geologic map of the Nome D-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-248, 1 sheet, scale 1:63,360.

Reference (Deposit): Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p.

Reference (Deposit): Moffit, F.H., 1913, Geology of the Nome and Grand Central quadrangles, Alaska: U.S. Geological Survey Bulletin 533, 140 p.

Reference (Deposit): Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.

Reference (Deposit): Coats, R.R., 1944, Lode scheelite occurrences of the Nome area: U.S. Geological Survey Open-File Report 17, 6 p.

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