1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed

Occurrence in Alaska, United States with commodities Silver, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10003361
MRDS ID A106113
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -163.41909, 54.82084 (WGS84)
Relative position Approximate location is about 5 km south of False Pass community. Anomaly no. 49 of Christie (1974) and no. 2 of MacKevett and Holloway (1977, p. 11). Location description is poor; however, location apparently is southwest of Whirl Point on Unimak Island.

Site location context

Political divisions (FIPS codes)

Aleutians East(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

False Pass D-5(quadrangle 1:63,360 scale)

False Pass(quadrangle 1:100,000 scale)

False Pass(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fox Islands(hydrologic unit)

Aleutian Islands(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Isanotski Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Pyrite Ore

Alteration

  • (Local) Pervasive propylitic alteration of diorite within the color anomaly and local(?) silicification. Hydrothermal minerals reported include clay, chlorite, and epidote.

Mineral occurrence model information

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)

Nearby scientific data

(1) -163.41909, 54.82084
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Christie (1974) briefly examined a poorly defined color anomaly 2 mi (3.2 km) in diameter developed in andesitic volcanic flows, breccia, and tuff intruded by multiple diorite stocks(?). The diorite contact metamorphoses the volcanic rocks and pyrite is disseminated in both the diorite and the volcanic rocks. The diorite is pervasively propylitically altered.
  • Age = Miocene or younger

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 were collected. One sample had 0.01 ppm gold. Occurrence apparently has not been adequately examined for epithermal gold vein potential.

Reference information

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
Deposit Other Comments = Quartz veining is not mentioned by Christie (1974), but this does not mean it is absent, inasmuch as his focus was mainly on porphyry mineralization.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-MAY-1994 G.D. DuBois U.S. Geological Survey
Reporter 06-MAY-1994 F.H. Wilson U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.