Unnamed

Occurrence in Alaska, United States with commodities Silver, Gold

Geologic information

Identification information

Deposit ID 10003309
MRDS ID A106056
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -162.70243, 55.05752 (WGS84)
Relative position Approximate location is 4 mi (6.4 km) northeast of Thinpoint Cove, between Frosty Peak and Thinpoint Lake. Anomaly no. 62 of Christie (1974) and no. 3 of MacKevett and Holloway (1977, p. 9).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Pyrite Ore

Alteration

  • (Local) Possibly propylitic, based on presence of chlorite.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46
Model code 105
USGS model code 25a-d
Deposit model name Epithermal vein, generic
Mark3 model number 119

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -162.70243, 55.05752

Comments on the geologic information

  • Geologic Description = Christie (1974) reports a 3,000 by 1,000+ ft (900 by 300+ m), elongate to the northeast, color anomaly in volcanic rocks, mainly agglomerate and flows(?). Pyrite is disseminated and to a minor degree localized in fractures in the volcanic rocks. Maximum total sulfide content is 2 to 3 percent. No intrusive rocks were found.
  • Age = Pliocene or younger

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = Brief reconnaissance geologic mapping and collection of a few silt samples reported by Christie (1974). Silver to 1.3 ppm, otherwise background levels for copper, molybdenum, zinc, and gold.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A106056
USGS Alaska Resource Data File ARDF CB012

Bibliographic references

  • Deposit

    Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Comments on the references

  • Primary Reference = Christie, 1974

General comments

Subject category Comment text
Deposit Model Name = Epithermal gold vein, polymetallic vein
Deposit Model Number = 22c, 25

Reporter information

Type Date Name Affiliation Comment
Reporter 09-MAY-1994 G.D. DuBois U.S. Geological Survey
Reporter 09-MAY-1994 F.H. Wilson U.S. Geological Survey