Snyder Falls Creek

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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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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