Wilson Point

Prospect in Alaska, United States with commodities Silver, Gold

Geologic information

Identification information

Deposit ID 10000370
MRDS ID A010437
Record type Site
Current site name Wilson Point
Related records 10234084

Geographic coordinates

Geographic coordinates: -145.6725, 60.6596 (WGS84)
Relative position This occurrence is on the north shore of Nelson Bay, about 1000 feet northeast of VABM Bluff. It is in the W1/2 sec. 13, T. 14 S., R. 3 W., of the Copper River Meridian. Site location accurate to within 0.5 mile. Site corresponds to loc. 24 in Cobb (1972: MF-392). It also corresponds to loc. C-28 in Jansons and others (1984), but their plotted position of the site is in error.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Orca Group;Orca Group
    Rock description Orca Group;Orca Group

Nearby scientific data

(1) -145.6725, 60.6596

Comments on the geologic information

  • Geologic Description = The Wilson Point prospect is in graywacke and slate of the Tertiary Orca Group (Nelson and others, 1985). Schrader (1900) reported numerous quartz stringers having assay values of 1.25 oz. Au/ton and 3 oz. Ag/ton. Jansons and others (1984) report a four-foot-wide, 20-foot-long quartz-cemented graywacke breccia. Analyses of their samples showed <0.03 ppm to 0.05 ppm Au and <0.1 ppm Ag. However, their site location does not agree with that of earlier reports.
  • Age = Tertiary based on the age of the mineralizing event (Goldfarb and others, 1992).

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the workings information

  • Workings / Exploration = Minor surface sampling (Schrader, 1900). Analyses of recent samples showed <0.03 ppm to 0.05 ppm Au and <0.1 ppm Ag (Jansons and others, 1984).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010437
USGS Alaska Resource Data File ARDF CV043

Bibliographic references

  • 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.

  • Deposit

    Goldfarb, R.J., Leach, D.L., Miller, M.L., and Pickthorn, W.J., 1986, Geology, metamorphic setting, and genetic constraints of epigenetic lode-gold mineralization within the Cretaceous Valdez Group, south-central Alaska, in Keppie, J.D., Boyle, R.W., and Haynes, S.J., eds., Turbidite-hosted gold deposits: Geological Association of Canada Special Paper 32, p. 87-105.

  • Deposit

    Goldfarb, R.J., Case, J.E., Plafker, George, and Winkler, G.R., 1992, Maps showing areas of potential for mineral resources in the Cordova and Middleton Island 1 degree x 3 degree quadrangles, southern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2190, scale 1:250,000.

  • Deposit

    Bliss, J.D., 1992, Grade and tonnage model of Chugach-type low-sulfide Au-quartz veins: U.S. Geological Survey Bulletin 2004, p. 44-46.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Cordova quadragle, Alaska: U.S. Geological Survey Open-file Report OF 79-973, 73 p.

  • Deposit

    Schrader, F.C., 1900, A reconnaissance of a part of Prince William Sound and the Copper River district, Alaska, in 1898: U.S. Geological Survey 20th Annual Report, Part 7, p. 341-423.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Cordova quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-392, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Cobb, 1979 (OF 79-973)

General comments

Subject category Comment text
Deposit Model Name = Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; Goldfarb and others, 1986)
Deposit Other Comments = Chugach Alaska Corporation, Anchorage, Alaska has control of these lands.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-2000 S.W. Nelson U.S. Geological Survey