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  3. Mineral Resource Data System (MRDS)

Unnamed (west of Julian Creek)

Occurrence in Alaska, United States with commodities Silver, Tin, Arsenic, Bismuth, Cadmium, Antimony
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10003376
MRDS ID A106132
Record type Site
Current site name Unnamed (west of Julian Creek)
Alternate or previous names Unnamed lode occurrence near Julian Creek

Geographic coordinates

Geographic coordinates: -157.40679, 62.21329 (WGS84)
Relative position S 1/2 NE 1/4 sec. 34, T. 25 N., R. 44 W., approximately 1,100 ft. elevation, due south of knob marked 1390' on the Iditarod A-3 topographic map.; Accurate within 1/4 mile.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iditarod A-3(quadrangle 1:63,360 scale)

Iditarod SE(quadrangle 1:100,000 scale)

Iditarod C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Aniak(hydrologic unit)

Lower Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Tin Critical Primary
Arsenic Critical Primary
Bismuth Critical Secondary
Cadmium Secondary
Antimony Critical Secondary

Comments on the commodity information

  • Ore Material = Arsenopyrite only identified ore mineral.

Materials information

Materials Type of material
Arsenopyrite Ore
Quartz Gangue

Nearby scientific data

(1) -157.40679, 62.21329
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Granite porphyry (alaskite) intrusive contains disseminated arsenopyrite and quartz veinlets. Gossan zone is exposed in rubble. Samples yield 10 g/tonne Ag, >.2% As, and 100 ppm Sn.

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 = Surface

Reference information

Bibliographic references

  • Deposit

    McGimsey, R.G., Miller, M.L., and Arbogast, B.F., 1988, Paper version of analytical results, and sample locality map for rock samples from the Iditarod quadrangle, Alaska: U.S. Geological Survey Open-File Report 88-421-A, 110 p., scale 1:250,000.

  • Deposit

    Miller, M.L., Bundtzen, T.K., Keith, W.J., Bailey, E.A., Bickerstaff, Damon, 1996, Geology and mineral resources of the Stuyahok area, part of Holy Cross A-4 and A-5 quadrangles, Alaska: U.S. Geological Survey Open-File Report 96-505-A, 30 p.

Comments on the references

  • Primary Reference = Miller and others, 1996.

General comments

Subject category Comment text
Deposit Model Name = Epithermal veins associated with alaskite dike/plug

Reporter information

Type Date Name Affiliation Comment
Reporter 26-MAY-1994 M.L. Miller 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.