Unnamed (north tributary to East Fork, Iron Creek)

Prospect in Alaska, United States with commodities Silver, Copper, Gold

Geologic information

Identification information

Deposit ID 10001433
MRDS ID A012181
Record type Site
Current site name Unnamed (north tributary to East Fork, Iron Creek)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -148.82272, 62.34958 (WGS84)
Relative position At confluence of a small southwest flowing tributary and East Fork of Iron Creek, 2 miles west-southwest of VABM Sedan. Locality 64 of Csejtey and Miller (1978) and locality 64 of Singer and others (1978). Accurate within 2,000 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore
Quartz Gangue

Nearby scientific data

(1) -148.82272, 62.34958

Comments on the geologic information

  • Geologic Description = Float sample of vein quartz contained pyrite, chalcopyrite, and possibly pyrrhotite. Prospect is located at, or near to, a shear zone (possible thrust fault) between upper Paleozoic metavolcaniclastic rocks and Jurassic plutonic and metamorphic rocks. Analysis of the float sample yielded up to 7 ppm Ag, 0.9 ppm Au, and 5,000 ppm Cu (Miller and others, 1978).

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Yentna

Comments on the workings information

  • Workings / Exploration = Extent of exploration is apparently only the collection of a surface grab sample. Analysis of the float sample yielded up to 7 ppm Ag, 0.9 ppm Au, and 5,000 ppm Cu (Miller and others, 1978).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012181
USGS Alaska Resource Data File ARDF TK087

Bibliographic references

  • Deposit

    Miller, R.J., Cooley, E.F., O'Leary, R.M., Garmezy, larry, Csejtey, Bela, Jr., Smith, T.E., and Cleveland, M.N., 1978, Analysis of geochemical samples from the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-file Report 78-1052, 279 p.

  • Deposit

    Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and table describing metalliferous and selected nonmetalliferous mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-B, 20 p., 1 plate, scale 1:250,000.

  • Deposit

    Singer, D.A., Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and discussion of the metalliferous and selected nonmetalliferous mineral resources of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-file Report 78-588-Q, 33 p., 1 plate, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Csejtey, Bela, Jr., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-716, 63 p.

Comments on the references

  • Primary Reference = Miller and others, 1978

Reporter information

Type Date Name Affiliation Comment
Reporter 05-AUG-98 Bickerstaff, Damon U.S. Geological Survey