Unnamed (Silver Creek--lode)

The Unnamed (Silver Creek--lode) is a arsenic, 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 (Silver Creek--lode)

Commodity

Primary: Arsenic
Primary: Antimony
Primary: Gold

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: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Disseminated sulfides (?), silicification (?), ankerite replacement (?).

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Stibnite
Ore: Pyrite
Ore: Gold
Ore: Arsenopyrite
Gangue: Quartz
Gangue: Ankerite

Comments

Comment (Workings): Workings / Exploration = BHP-Utah International, Inc. completed surface mapping and a large soil geochemistry survey in the general area in 1989-90. The soil geochemistry survey defined an area of anomalous gold and arsenic values about 4 miles long. This prospect is in the western part of the anomalous area. Kennecott Exploration Company explored the prospect in 1995 by detailed surface mapping and 1,000 feet of trenches. The trenches are on the west side of Silver Creek and extend from the Snake River road northward almost to the contact between massive marble and underlying metasedimentary schist.

Comment (Exploration): Status = Probably inactive

Comment (Geology): Geologic Description = This prospect is located near the west end of a large area of anomalous gold and arsenic values in soils defined by BHP-Utah International, Inc. (Stevens, 1991). Near Silver Creek, gold in soils locally exceeds 100 ppb and arsenic exceeds 800 ppm. Kennecott Exploration explored the area in 1995 by detailed surface mapping and with 1,000 feet of trenches. The trenches are on the west side of Silver Creek and extend from the Snake River road northward almost to the contact between massive marble and underlying metasedimentary schist (Bundzten and others, 1994). The source of the anomalous gold and arsenic in soils was not clearly identified, although a sulfide-bearing, northeast-trending vein zone is located at an elevation of 900 feet in the NW 1/4, section 32 (T. 8 S., R. 33 W., Kateel River Meridian). The sources of the anomalous metals could include stratabound quartz-stibnite-gold mineralization in schist near the base of massive marble, as at the nearby Tanner prospect (NM091), or low sulfide, gold-quartz veins, as at the nearby McDuffee mine (NM092). Silver Creek contained a small gold placer (NM094) below this prospect.

Comment (Geology): Age = Mid-Cretaceous; appears to postdate regional metamorphism.

Comment (Reference): Primary Reference = This report

Comment (Deposit): Model Name = Massive stibnite lenses and disseminated gold-bearing mineralization in calcareous schist below marble and/or low-sulfide, Au-quartz veins (Cox and Singer, 1986; model 36a).

References

Reference (Deposit): Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.

Reference (Deposit): Stevens, D.L., 1991, Mt. Distin prospect, Seward Peninsula, Alaska: Unpublished report for Bering Straits Native Corporation, Nome, Alaska, 22 p.

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