Unnamed (near summit of White Mountain)

Occurrence in Alaska, United States with commodities Copper, Mercury, Silver

Geologic information

Identification information

Deposit ID 10307840
Record type Site
Current site name Unnamed (near summit of White Mountain)

Geographic coordinates

Geographic coordinates: -154.89785, 62.18445 (WGS84)
Relative position This unnamed occurrence is located on a southeast ridge about 200 meters from the summit of VABM Big (White Mountain), at an elevation of 3,100 feet (945 m) in the SE1/4 sec. 11, T. 24 N., R. 30 W., of the Seward Meridian. The location corresponds to prospect number 11 in Gilbert (1981); at station no. 79WG199.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Mercury Primary
Silver Secondary

Materials information

Materials Type of material
Cinnabar Ore
Calcite Gangue

Mineral occurrence model information

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

Nearby scientific data

(1) -154.89785, 62.18445

Comments on the geologic information

  • Geologic Description = This unnamed occurrence is a cinnabar-bearing breccia in a diabase dike that intrudes an unnamed algal limestone, a subdivision of the Nixon Fork subterrane (Gilbert, 1981; Wilson and others, 1998). The host dike trends east-west and dips steeply into the hillside. One sample of cinnabar-bearing breccia contained 214 ppm copper; mercury was not analyzed.

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name McGrath

Comments on the workings information

  • Workings / Exploration = W.G. Gilbert found the occurrence during geologic mapping for the Alaska Division of Geological and Geophysical Surveys in 1979 (Gilbert, 1981). One sample of cinnabar-bearing breccia contained 214 ppm copper; mercury was not analyzed.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF MG024

Bibliographic references

  • Deposit

    Gilbert, W.G., 1981, Preliminary geologic map of the Cheeneetnuk River area, Alaska: Alaska Division of Geological and Geophysical Surveys Open-File Report 153, 19 pages, 2 sheets, 1:63,360 scale.

  • Deposit

    Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of central (interior) Alaska: U.S. Geological Survey Open-File Report 98-133, 17 p., 2 sheetsm, scale 1:500,000.

Comments on the references

  • Primary Reference = Gilbert, 1981

General comments

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

Reporter information

Type Date Name Affiliation Comment
Reporter 10-DEC-98 T.K. Bundtzen Pacific Rim Geological Consulting