The Unnamed (headwaters of Rick's Creek) is a tungsten 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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Unnamed (headwaters of Rick's Creek) MRDS details
Site Name
Primary: Unnamed (headwaters of Rick's Creek)
Commodity
Primary: Tungsten
Secondary: Silver
Secondary: Antimony
Secondary: Copper
Secondary: Gold
Secondary: Arsenic
Secondary: Zinc
Secondary: Manganese
Location
State: Alaska
District: Fairbanks
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
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Pyrite
Gangue: Garnet
Gangue: Pyroxene
Comments
Comment (Commodity): Gangue = Carbonate
Comment (Deposit): Model Name = Skarn
Comment (Workings): Workings / Exploration = Menzie and Foster (1979) noted the mineral occurrence during geologic mapping.
Comment (Reference): Primary Reference = Albanese,1984
Comment (Geology): Geologic Description = The occurrence noted by Albanese (1984) included the analysis of three samples: 1) a sulfide zone containing arsenopyrite, chalcopyrite, and pyrite. A rock sample from a trench in a garnet-diopside skarn contained 518 ppm Cu, 39 ppm Pb, 436 ppm Zn, 0.1 ppm Au, 1.3 ppm Ag, 1 ppm Mo, 222 ppm Sb, 20 ppm Sn, 60 ppm W, greater than 19,800 ppm As, and 686 ppm Mn; 2) an arsenopyrite-, chalcopyrite-, and pyrite-bearing calc-silicate contained 64 ppm Cu, 4 ppm Pb, 50 ppm Zn, 0.1 ppm Au, 0.4 ppm Ag, 2 ppm Mo, 10 ppm Sb, 4 ppm Sn, 900 ppm W, 213 ppm As, and 1,360 Mn; and 3) an arsenopyrite and pyrite bearing calc-silicate contained 462 ppm Cu, 34 ppm Pb, 37 ppm Zn, 4.3 ppm Ag, 1 ppm Mo, 4 ppm Sn, 450 ppm W, 818 ppm As, and 364 ppm Mn. Weber and others (1978) describe the regional bedrock as quartzite, slate, calc-phyllite and marble. The occurrence is located near the contact of a Tertiary to Cretaceous granodiorite to quartz monzonite intrusion.
References
Reference (Deposit): Weber, F.R., Foster, H.L., Keith, T.E.C., Dusel-Bacon, C., 1978, Preliminary geologic map of the Big Delta quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-529A, 1 sheet, scale 1:250,000.
Reference (Deposit): Albanese, M.D., 1984, Geochemical reconnaissance of the upper Chena river area, central Alaska: analytical data on stream sediment, pan concentrate, and rock samples: Alaska Division of Geological and Geophysical Surveys Report of Investigation 84-4, 30 p.
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