Unnamed

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

Geologic information

Identification information

Deposit ID 10003311
MRDS ID A106054
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -162.35243, 55.10753 (WGS84)
Relative position Approximate location is near tidewater at east end of Lenard Harbor. Anomaly no. 72 of Christie (1974). See also CB009, Lenard Harbor.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Mercury Secondary

Alteration

  • (Local) The only alteration reported is silicification.

Mineral occurrence model information

Model code 105
USGS model code 25a-d
Deposit model name Epithermal vein, generic
Mark3 model number 119
Model code 82
USGS model code 22
Deposit model name Epithermal veins

Nearby scientific data

(1) -162.35243, 55.10753

Comments on the geologic information

  • Geologic Description = Christie (1974) reported a 200 by 300 ft (60 by 90 m) color anomaly, exposed on a creek bed, that is due to irregularily distributed disseminated pyrite, not apparently related to any intrusive bodies. Country rocks are hornfelsed and silicified volcanic rocks, possibly dacite
  • 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 mapping reported by Christie (1974, source of geologic description) who also collected a few silt samples. Only anomalies were silver at up to 1.7 ppm and gold to 0.01 ppm. Butherus and others (1979) did brief reconnaissance for gold of area around Lenard Harbor, and found elevated mercury over a broad area.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A106054
USGS Alaska Resource Data File ARDF CB006

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    Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps.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

    Butherus, D.L, Gressitt, E.E., Pray, J., Corner, N.G., Lindberg, P.H., and Fankhauser, R.E., 1979, Exploration and evaluation of the Aleut Native Corporation lands; Volume III: Resource Associates of Alaska, 69 p. 90 sheets, various sacales. (Report held by the Aleut Native 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 = 25, 22

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