The Unnamed (north of lower Yanert Glacier) is a copper 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
Satelite View
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 (north of lower Yanert Glacier) MRDS details
Site Name
Primary: Unnamed (north of lower Yanert Glacier)
Commodity
Primary: Copper
Secondary: Gold
Location
State: Alaska
District: Bonnifield
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: Massive sulfide, Besshi (Japanese deposits)
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Comments
Comment (Geology): Age = Possibly Late Triassic.
Comment (Reference): Primary Reference = Sherwood and others, 1976
Comment (Workings): Workings / Exploration = Surface samples only.
Comment (Deposit): Model Name = Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b)
Comment (Geology): Geologic Description = The general area of this prospect is underlain by the Devonian Yanert Fork sequence which consists of siliceous mudstone, argillite, slate, phyllite, semischist, and impure quartzite, and minor metachert and metavolcanic rocks. The bedded rocks are cut by Triassic(?) sills and dikes (Wilson and others, 1998). The deposit reportedly consists of disseminated chaclopyrite and other sulfides, adjacent to a gabbro sill. Samples contained 2,300 ppm copper and 0.5 ppm gold (Sherwood and others, 1976).
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of central (interior) Alaska: U.S. Geological Survey Open-File Report 98-133, 17 p., 2 sheetsm, scale 1:500,000.
Reference (Deposit): Sherwood, K.W., Craddock, Campbell, and Smith, T.E., 1976, Mineral occurrences in the upper Wood River, Edgar Creek, and West Fork Glacier areas, central Alaska Range: Alaska Division of Geological & Geophysical Surveys Special Report 14, 13 p.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
