Unnamed (southeast of Merrill Pass)

The Unnamed (southeast of Merrill Pass) is a molybdenum, silver, zinc, and lead 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 (southeast of Merrill Pass)

Commodity

Primary: Molybdenum
Primary: Silver
Primary: Zinc
Primary: Lead

Location

State: Alaska
District: Redoubt

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: Porphyry Mo, low-F

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Galena
Ore: Molybdenite
Ore: Pyrite
Ore: Sphalerite
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Cobb and Reed, 1981

Comment (Workings): Workings / Exploration = Reconnaissance sampling has been completed in this area.

Comment (Geology): Geologic Description = Cobb and Reed (1981) reported that molybdenite- and pyrite-bearing quartz veins are present in Tertiary granitic rocks at this locality. Galena- and sphalerite-bearing veins are also present nearby. The veins are disseminated and appear to be associated with quartz monzonite and in adjacent fractured quartz diorite. Samples of veins contain as much as 3 ounces of silver per ton (Resource Associates of Alaska, unpublished data, 1976).

Comment (Deposit): Other Comments = This occurrence is within Lake Clark National Preserve.

Comment (Deposit): Model Name = Porphyry Mo, low-F? (Cox and Singer, 1986, model 21b)

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Tertiary. Sulfide-bearing quartz veins crosscut Tertiary granitic rocks.

References

Reference (Deposit): Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, 109 p.

Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.

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