Unnamed (western Russian Mountains)

Prospect in Alaska, United States with commodities Gold, Tin

Geologic information

Identification information

Deposit ID 10308199
Record type Site
Current site name Unnamed (western Russian Mountains)

Geographic coordinates

Geographic coordinates: -159.09588, 61.66935 (WGS84)
Relative position This occurrence is in the Russian Mountains on the east side of the cirque valley at the head of Cobalt Creek. The map site is at an elevation of about 1,950 feet, in the northwest corner of sec. 9, T. 18 N., R. 54 W., of the Seward Meridian. This is sample locality 9 of Bundtzen and Laird (1991).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Tin Secondary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Quartz veining.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -159.09588, 61.66935

Comments on the geologic information

  • Geologic Description = A gossan-rich, sheeted quartz vein in hornfels has been explored by a now-caved adit at this location. Euhedral quartz crystals are well-developed in the vein. A sample contained 250 ppb gold, 250 ppm arsenic, and 62 ppm yin (Bundtzen and Laird, 1991). The prospect is within about 300 feet of the southern contact of the Russian Mountains intrusive complex.
  • Age = Late Cretaceous or Tertiary. Veins post-date hornfels developed around the intrusive complex of the Russian Mountains. Quartz monzonite from this complex has yielded a K/Ar age of 70.3 +/- 2.1 Ma (Bundtzen and Laird, 1991).

Economic information

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Comments on the workings information

  • Workings / Exploration = A now-caved adit explored this prospect.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF RM015

Bibliographic references

  • Deposit

    Bundzten, T.K., and Laird, G.M., 1991, Geology and mineral resources of the Russian Mission C-1 Quadrangle, southwest Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 109, 24 p.

Comments on the references

  • Primary Reference = Bundtzen and Laird, 1991

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins? (Cox and Singer, 1986; model 22c)

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-01 Travis L. Hudson Applied Geology
Reporter 10-JUN-01 Madelyn A. Millholland Millholland & Associates