The Snyder Falls Creek 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
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Snyder Falls Creek MRDS details
Site Name
Primary: Snyder Falls Creek
Commodity
Primary: Copper
Location
State: Alaska
District: Copper River
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, Cyprus
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrrhotite
Ore: Pyrite
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Reference): Primary Reference = Jansons and others, 1984
Comment (Geology): Geologic Description = This occurrence consists of small veinlets of chalcopyrite and of disseminated pyrite and pyrrhotite in greenstone 'pods' in sedimentary rocks of the Orca Group (Jansons and others, 1984; Nelson and others, 1985). These pods probably represent localized mafic flows or structurally disrupted flows. Ten grab samples analyzed from the area contained from 29 ppm to 3.35% Cu (Jansons, 1984).
Comment (Workings): Workings / Exploration = Site was visited as part of a regional mineral assessment of the Chugach National Forest (Nelson and others, 1984; 1985; Jansons and others, 1984). Ten grab samples analyzed from the area contained from 29 ppm to 3.35% Cu (Jansons, 1984).
Comment (Deposit): Model Name = Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Probably Tertiary based on the age of the host rocks.
Comment (Deposit): Other Comments = Chugach Alaska Corporation, Anchorage, Alaska has control of these lands.
References
Reference (Deposit): Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.
Reference (Deposit): Nelson, S.W., Miller, M.L., Barnes, D.F., Dumoulin, J.A., Goldfarb, R.J., Koski, R.A., Mull, C.G., Pickthorn, W.J., Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral resource potential of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-A, 24 p., 1 plate, scale 1:250,000.
Reference (Deposit): Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, scale 1:250,000.
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