The Unnamed is a 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
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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.
Unnamed MRDS details
Site Name
Primary: Unnamed
Commodity
Primary: Gold
Primary: Silver
Secondary: Molybdenum
Secondary: Zinc
Location
State: Alaska
District: Alaska Peninsula
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: Epithermal vein, generic
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Propylitic alteration, as evidenced by presence of epidote and chlorite; also silicification.
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Epithermal gold vein
Comment (Reference): Primary Reference = Christie, 1974
Comment (Workings): Workings / Exploration = Brief reconnaissance geologic mapping and sampling reported by Christie (1974). One sample of the pyritiferous matrix of a breccia zone yielded 0.03 ppm gold and 2.7 ppm silver. Other samples from the color anomaly yielded up to 3.8 ppm silver, molybdenum to 15 ppm, and zinc to 127 ppm.
Comment (Deposit): Other Comments = Good candidate for further evaluation as an epithermal gold vein system, rather than as a copper porphyry as was done by Christie (1974).
Comment (Geology): Geologic Description = 3,000 by 6,000 ft (900 by 1,800 m) color anomaly due to weathering of disseminated pyrite in dacite and quartz diorite. In the dacite, pyrite occurs in small cavities along with clots of epidote and chlorite. The quartz diorite also contains about 1 percent pyrite in fractures. Numerous thin breccia zones cross-cut the quartz diorite, and contain highly leached and altered fragments in a black, finely ground pyritiferous matrix. One 4' (10 cm) thick barren quartz vein was noted.
Comment (Geology): Age = Pliocene or younger
References
Reference (Deposit): Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
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