The Silver Lining is a lead, gold, 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: Lead, Gold, Copper, Silver
Lat, Long: 63.64, -142.29000
Map: View on Google Maps
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Silver Lining MRDS details
Site Name
Primary: Silver Lining
Commodity
Primary: Lead
Primary: Gold
Primary: Copper
Primary: Silver
Secondary: Antimony
Secondary: Arsenic
Secondary: Zinc
Location
State: Alaska
District: Fortymile
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Host syenite is altered to clay and cut by quartz-clay fractures.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Galena
Ore: Arsenopyrite
Ore: Scorodite
Ore: Chalcophanite
Ore: Stibiconite
Ore: Malachite
Ore: Azurite
Ore: Chrysocolla
Ore: Chalcopyrite
Gangue: Limonite
Gangue: Clay
Gangue: Quartz
Comments
Comment (Geology): Age = Tertiary or younger.
Comment (Reference): Primary Reference = This description
Comment (Workings): Workings / Exploration = Minor surface rock sampling.
Comment (Exploration): Status = Active
Comment (Geology): Geologic Description = The Silver Lining prospect is the Mt. Fairplay biotite syenite which is flanked to the west by Tertiary mafic volcanic rocks and to the east by biotite-quartz gneiss and schist (Foster, 1970). The Mt. Fairplay syenite has a K/Ar date of 67 +/- 2 Ma (Wilson and others, 1985). The prospect is notable for north-northeast linear structures. The mineralization consists of gold, silver, copper, arsenic, lead, zinc, and antimony mineralization hosted by quartz-clay altered shear zones in the biotite syenite. Minerals found include arsenopyrite, chalcopyrite, and galena. The mineralization is controlled by northeast-trending structures that cross-cut a strong northwest joint fabric. Rock samples contain up to 0.255 ounces per ton gold, 62 ounces per ton silver, 6.4 percent copper, and 4.7 percent lead (Curt Freeman, unpublished data, 1992). The regional geology consists of Upper Proterozoic to Lower Paleozoic polymetamorphic rocks ranging from biotite-quartz gneiss to quartz-muscovite-garnet schist (Foster, 1970). This basement assemblage is intruded by numerous intermediate Mesozoic to Tertiary intrusions and is capped by Tertiary mafic and felsic volcanic rocks (Foster, 1970).
References
Reference (Deposit): Wilson, F.H., Smith, J.G., and Shew, Nora, 1985, Review of radiometric data from the Yukon crystalline terrane, Alaska and Yukon Territory: Canadian Journal of Earth Sciences, v. 22, p. 525-537.
Reference (Deposit): Foster, H.L., 1970, Reconnaissance geologic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geological Investigations Map I-593, 1 sheet, scale 1:250,000.
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