Unnamed (in headwaters of Surprise Creek)

The Unnamed (in headwaters of Surprise Creek) is a copper 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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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 (in headwaters of Surprise Creek)

Commodity

Primary: Copper
Secondary: Silver

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

Physiography

Not available

Mineral Deposit Model

Model Name: Massive sulfide, kuroko

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Oxidized; iron-stained.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Malachite
Ore: Chalcopyrite
Gangue: Chlorite

Comments

Comment (Exploration): Status = Inactive

Comment (Reference): Primary Reference = Gamble, 1988

Comment (Workings): Workings / Exploration = No exploration work is reported for this occurrence.

Comment (Geology): Geologic Description = A sample of iron-stained carbonate-chorite schist contained 1 percent Cu, 5 ppm Ag, 200 ppm Zn, and 12 ppm Bi (Gamble, 1988). Bedrock is part of a metavolcanic assemblage thought to be Ordovician in age (Till and others, 1986).

Comment (Commodity): Gangue = Carbonate

Comment (Deposit): Model Name = Chalcopyrite-bearing carbonate-chlorite schist; volcanogenic massive sulfide?; Kuroko massive sulfide (Cox and Singer, 1986; model 28a).

References

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.

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