Unnamed (south tributary to upper Iron Creek)

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

Geologic information

Identification information

Deposit ID 10094027
MRDS ID A012184
Record type Site
Current site name Unnamed (south tributary to upper Iron Creek)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -148.90272, 62.27958 (WGS84)
Relative position 0.5 miles up an unnamed northward flowing tributary of Iron Creek, 2.5 miles northwest of VABM Xylic. Locality 67 of Csejtey and Miller (1978) and locality 67 of Singer and others (1978). Accurate within 2,000 feet.
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Lead Secondary

Materials information

Materials Type of material
Malachite Ore
Pyrite Ore

Alteration

  • (Local) Altered granitic rock.

Host and associated rocks

  • Host or associated Host
    Stratigraphic age (youngest) Jurassic

Nearby scientific data

(1) -148.90272, 62.27958

Comments on the geologic information

  • Geologic Description = Float sample of altered Jurassic granitic rock contained pyrite and malachite. Analysis of the float sample yielded 0.1 ppm Au, 2,000 ppm Cu, and 10 ppm Pb (Miller and others, 1978).
  • Age = Jurassic or younger, mineralization is hosted by altered granitic rocks of Jurassic age.
  • Age = Host rock is Jurassic.

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 0.1 ppm Au, 2,000 ppm Cu, and 10 ppm Pb (Miller and others, 1978).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012184
USGS Alaska Resource Data File ARDF TK085

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