The East Gladiator is a zinc, lead, molybdenum, copper, 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
Elevation:
Commodity: Zinc, Lead, Molybdenum, Copper, Silver
Lat, Long: 60.18, -153.83000
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East Gladiator MRDS details
Site Name
Primary: East Gladiator
Commodity
Primary: Zinc
Primary: Lead
Primary: Molybdenum
Primary: Copper
Primary: Silver
Secondary: Tin
Location
State: Alaska
District: Bristol Bay
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
Alteration Type: L
Alteration Text: Sericitic, argillic, and chloritic alteration.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Molybdenite
Ore: Pyrite
Ore: Pyrrhotite
Gangue: Quartz
Gangue: Sericite
Comments
Comment (Deposit): Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
Comment (Geology): Age = Tertiary or younger
Comment (Exploration): Status = Inactive
Comment (Reserve-Resource): Reserves = No reserves
Comment (Workings): Workings / Exploration = Maximum values from rock chip samples yielded: 27.7 ppm Ag, 0.32 percent Cu, 0.09 percent Pb, 75 ppm Sn, and 0.1 percent Zn (Nelson and others, 1985). Stream sediment samples reported by Eakins (1970) yielded up to 95 ppm Pb and 225 ppm Zn. Copper values were below 50 ppm.
Comment (Deposit): Other Comments = Site is in Lake Clark National Park and Preserve.
Comment (Geology): Geologic Description = Widespread, mostly low-grade mineralization associated with metamorphic rocks (roof pendant) and volcanic rocks in vicinity of Tertiary granite. Chalcopyrite occurs as thin fracture coatings or within quartz veins in shear zones (Nelson and others, 1985). Sulfide mineralization best developed in the meta-siltstone and argillite near andesite or diorite contact. Maximum values from rock chip samples yielded: 27.7 ppm Ag, 0.32 percent Cu, 0.09 percent Pb, 75 ppm Sn, and 0.1 percent Zn (Nelson and others, 1985).? Three close-spaced southwest flowing streams, about 3.2 km SW of this location is sample 'Area D' of Eakins (1970). These streams flow through basalt into the eastern end of Kontrashibuna Lake. Stream sediment samples reported by Eakins (1970) yielded up to 95 ppm Pb and 225 ppm Zn. Copper values were below 50 ppm. ? Nelson and others (1983, units Ti8 and Tv) describe the rocks in this area as Tertiary medium-grained biotite-hornblende granodiorite which also includes granite and quartz monzodiorite; and Tertiary volcanic rocks that include rhyolitic breccia, ash-flow tuff, flows, and felsic intrusive rocks, and subordinate mafic to intermediate flows.?
Comment (Reference): Primary Reference = Nelson and others, 1985
Comment (Production): Production Notes = No production
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): Nelson, W.H., Carlson, C., and Case, J.E., 1983, Geologic map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1114-A, scale 1:250,000.
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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