Fisher Dome

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

Geologic information

Identification information

Deposit ID 10002459
MRDS ID A013389
Record type Site
Current site name Fisher Dome
Related records 10234026, 10234119

Geographic coordinates

Geographic coordinates: -159.72281, 60.81932 (WGS84)
Relative position This lode occurrence is 1.6 miles southeast of Fisher Dome and 1.4 miles due south of the headwaters of Fisher Creek. It is approximately located, perhaps within miles. The coordinates provided by Hoare and Cobb (1977) do not match the location shown by Cobb (1972 [MF 455]), which is the one used in this record. The map site is on the midline of the ridge at an elevation of about 2,500 feet, in the SE1/4 of section 34, T 9 N, R 39 W, of the Seward Meridian. This is locality 4 of Cobb (1972 [MF 455]) and of Hoare and Cobb (1977).

Site location context

Political divisions (FIPS codes)

Bethel(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bethel D-2(quadrangle 1:63,360 scale)

Bethel NE(quadrangle 1:100,000 scale)

Bethel(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Aniak(hydrologic unit)

Lower Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Calista Corporation(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Antimony Critical Primary
Gold Secondary

Materials information

Materials Type of material
Stibnite Ore
Quartz Gangue

Mineral occurrence model information

Model code 180
USGS model code 27d
Deposit model name Simple Sb (veins, pods, etc)

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -159.72281, 60.81932

Economic information

Comments on the geologic information

  • Geologic Description = Hoare and Coonrad (1959) report that a stibnite-bearing quartz vein cuts rhyolite at this location. Frost (1990) and Frost and others (1992), report analytical data for two stibnite-quartz samples from this site that contain up to 1 ppm Au, 7 ppm Ag, 1,500 ppm As, and greater than 10,000 ppm Sb. Box and others (1993) show a small felsic stock intruding hornfels in sedimentary rocks of the mid-Cretaceous Kuskokwim Group in this area. Isotopic dating of similar intrusive rocks elsewhere in the Bethel quadrangle has yielded ages of 62 to 66 Ma (Box and others, 1993). Frost (1990).
  • Age = Late Cretaceous or Early Teritary; assumed to be related to emplacement of felsic intrusive rocks in the area. The intrusive stock at Marvel Dome, about 12 miles to the north, has yielded K/Ar ages of 65.1 +/- 2.0 and 66.6 +/- 2.0 Ma (Box and others, 1993). An intrusive stock at the head of Dome Creek about 12 miles to the south-southeast has yielded an Ar/Ar age of 62.2 +/- 1.9 Ma (Box and others, 1993).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Comments on the workings information

  • Workings / Exploration = There are no reports of exploration at this location.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Hoare and Coonrad, 1959

General comments

Subject category Comment text
Deposit Model Name = Simple Sb deposit (Cox and Singer, 1986; model 27d).

Reporter information

Type Date Name Affiliation Comment
Reporter 24-MAR-2001 Travis L. Hudson Applied Geology

Beyond USGS

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

Authoritative Alaska resources

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