The Drenchwater--West is a 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
Drenchwater--West MRDS details
Site Name
Primary: Drenchwater--West
Commodity
Primary: Zinc
Primary: Lead
Location
State: Alaska
District: Colville
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
Model Name: Sedimentary exhalative Zn-Pb
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Galena
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Exploration): Status = Not determined
Comment (Reference): Primary Reference = Nokleberg and Winkler (1982)
Comment (Workings): Workings / Exploration = Samples contain as much as >10,000 ppm Zn, 20,000 ppm Pb, 1500 ppm Ba, and 150 ppm Ag (Nokleberg and Winkler, 1982, p. 16).
Comment (Deposit): Model Name = Lode; sediment-hosted Pb-Zn
Comment (Geology): Geologic Description = Sulfides occur as disseminated grains, fracture fillings, and in boxwork quartz in black chert and siliceous shale of Mississippian to Lower Pennsylvanian(?) Kuna Formation of the Lisburne Group; an interbed of felsic to intermediate(?) volcanic rocks occurs nearby. These sulfides are about midway in a west-northwest-trending zone of sporadic occurrences that extends about 1.25 mi (2 km) parallel to the strike of bedding. The sulfides are probably syngenetic.
Comment (Geology): Age = K-Ar ages of 319+10 and 330+17 Ma were obtained from biotite from a volcanic interbed within the mineralized belt; a Pb-isotope model age of 200 Ma was obtained from galena.
References
Reference (Deposit): Mayfield, C.F., Curtis, S.M., Ellersieck, I., and Tailleur, I.L., 1979, The Ginny Creek zinc-lead-silver and Nimiuktuk barite deposits, northwestern Brooks Range, Alaska: U.S. Geological Survey Circular 804-B, p. B11-B12.
Reference (Deposit): Nokleberg, W.J., and Winkler, G.R., 1978, Stratiform zinc-lead mineralization, Drenchwater Creek area, Howard Pass quadrangle, western Brooks Range, Alaska: U.S. Geological Survey Circular 772-B, p. B15-B17
Reference (Deposit): Jansons, Uldis, 1982, Zinc-lead occurrences in and near the National Petroleum Reserve in Alaska: U.S. Bureau of Mines Open-File Report MLA 121-82, 55 p.
Reference (Deposit): Nokleberg, W.J., and Winkler, G.R., 1982, Stratiform zinc-lead deposits in the Drenchwater Creek area, Howard Pass quadrangle, northwestern Brooks Range, Alaska; U.S. Geological Survey Professional Paper 1209, 22 p., 2 over-size plates, scale 1:19,800
Reference (Deposit): Jansons, Uldis, and Baggs, D.W., 1980, Mineral investigations of the Misheguk Mountains and Howard Pass quadrangles, National Petroleum Reserve, Alaska: U.S. Bureau of Mines Open-File Report 38-80, 76 p.
Reference (Deposit): Churkin, M. Jr., Mayfield, C.F., Theobald, P.K., Barton, H., Nodleberg, W.J., Winkler, G.R., and Huie, C., 1978, Geological and geochemical appraisal of metallic mineral resources, southern National Petroleum Reserve in Alaska: U.S. Geological Survey Open-File Report 78-70A, 82 p.
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