Unnamed

Occurrence in Alaska, United States with commodity Silver

Geologic information

Identification information

Deposit ID 10003317
MRDS ID A106062
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -162.26909, 55.02753 (WGS84)
Relative position Approximate location is near the tip of Bold Cape, east of King Cove. Anomaly no. 59 of Christie (1974).
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary

Materials information

Materials Type of material
Pyrite Gangue
Pyrrhotite Gangue

Alteration

  • (Local) Propylitic and local quartz-sericite alteration.

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

Nearby scientific data

(1) -162.26909, 55.02753

Comments on the geologic information

  • Geologic Description = Color anomaly 3,000 by 2,000 ft (900 by 600 m) elongate along a northeast trend. Country rocks are marine clastic sedimentary rocks and andesite flows and breccias cut by diorite and feldspar porphyry dikes. Pyrite is disseminated in weakly altered diorite dikes and occurs along fractures and disseminated in the country rocks.
  • Age = Miocene 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 a few silt samples reported by Christie (1974). Moderate silver to 1.9 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 A106062
USGS Alaska Resource Data File ARDF CB008

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    Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps.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