Unnamed (north of Mount Kashagnak)

The Unnamed (north of Mount Kashagnak) is a molybdenum, gold, 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

Satelite View

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 (north of Mount Kashagnak)

Commodity

Primary: Molybdenum
Primary: Gold
Primary: Silver

Location

State: Alaska
District: Juneau (Skagway subdistrict)

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: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Hornblendite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Hornblendite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Not available

Materials

Ore: Molybdenite
Gangue: Quartz

Comments

Comment (Exploration): Status = Inactive

Comment (Reference): Primary Reference = Redman and others, 1984

Comment (Geology): Geologic Description = According to Redman and others (1984), a few rare, thin quartz veins 0.04 to 0.16 inches wide can be traced for at least 10 feet. The veins contain small amounts of molybdenum, gold, and silver. One sample of a single vein with attached wallrock contained 137 ppm molybdenum, 2.3 ppm silver, and 0.7 ppm gold. The veins occur within the biotite-quartz-monzonite-porphyry core of the mid-Cretaceous Mount Kashagnak pluton.

Comment (Deposit): Model Name = Quartz vein with Mo, Au and Ag (Cox and Singer, 1986; model 22c?),

Comment (Geology): Age = Mid-Cretaceous or younger based on the age of the Mount Kashagnak pluton (Redman and others, 1984).

References

Reference (Deposit): Redman, E.C., Retherford, R.M., and Hickok, B.D., 1984, Geology and geochemistry of the Skagway B-2 Quadrangle, southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 84-31, 34 p., 4 sheets, scale 1:40,000.

Reference (Deposit): Wells, D.E., Pittman, T.L., Brew, D.A. and Douglass, S.L., 1986, Map and description of the mineral deposits in the Juneau, Taku River, Atlin, and part of the Skagway quadrangles, Alaska; U.S. Geological Survey Open-File Report 85-717, 332 p.

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