Tin Creek-South

The Tin Creek-South is a copper, zinc, lead, and silver 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: Tin Creek-South

Commodity

Primary: Copper
Primary: Zinc
Primary: Lead
Primary: Silver
Secondary: Cadmium
Secondary: Cobalt
Secondary: Bismuth

Location

State: Alaska
District: McGrath

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: Skarn Zn-Pb

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Galena
Ore: Pyrite
Ore: Pyrrhotite
Gangue: Diopside
Gangue: Garnet

Comments

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Unknown; younger than 65 Ma Veleska Lake Volcanic Field.

Comment (Geology): Geologic Description = The Tin Creek-South occurrence is a high-grade, sulfide-bearing, diopside-garnet skarn zone associated with a complex, east-west trending dike swarm. The dikes cut the Late Cretaceous Veleska Lake Volcanic Field and the older Cambrian to Devonian Dillinger subterrane (Bundtzen, Kline, and Clough, 1982; Bundtzen, Harris, and Gilbert, 1997). The dikes have not been dated, but are younger than the 65 Ma Veleska Lake Volcanic Field. Massive sphalerite veins are encased in a diopside-rich garnet skarn zone within a carbonate xenolith less than 2 meters thick. Because the exposure is in rubble-crop, the zone's orientation is unknown. Analytical data summarized by Bundtzen, Harris, and Gilbert (1997) indicate up to 0.04 percent copper, 1.30 percent lead, 14.70 percent zinc, 58.0 grams/tonne silver, 300 ppm cobalt, 200 ppm cadmium, and 1,000 ppm bismuth.

Comment (Reference): Primary Reference = Bundtzen, Harris, and Gilbert, 1997

Comment (Workings): Workings / Exploration = The Tin Creek-South occurrence was investigated by the reporter for the Alaska Division of Geological and Geophysical Surveys in 1980 (Bundtzen, Kline, and Clough, 1982). Analytical data summarized by Bundtzen, Harris, and Gilbert (1997) indicate up to 0.04 percent copper, 1.30 percent lead, 14.70 percent zinc, 58.0 grams/tonne silver, 300 ppm cobalt, 200 ppm cadmium, and 1,000 ppm bismuth.

Comment (Deposit): Model Name = Low temperature lead-zinc skarn (Cox and Singer, 1986; model 18c).

References

Reference (Deposit): Bundtzen, T.K., Kline, J.T., and Clough, J.G., 1982, Preliminary geologic map of the McGrath B-2 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Open-File report 149, 22 pages, one sheet, scale 1:63,360.

Reference (Deposit): Bundtzen, T.K., Harris, E.E., and Gilbert, W.G., 1997, Geologic Map of the eastern McGrath quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 97-14, 34 pages, one sheet, scale 1:125,000.

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