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Unnamed

Occurrence in Alaska, United States with commodity Tungsten
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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. 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. Reporter information

Geologic information

Identification information

Deposit ID 10001500
MRDS ID A012247
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -144.93181, 65.46585 (WGS84)
Relative position The location is a short distance below the junction of Deadwood Creek and Discovery Gulch, on a wolframite-bearing vein in a prospect hole (Johnson, 1910, p. 248).

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Circle B-2(quadrangle 1:63,360 scale)

Circle SE(quadrangle 1:100,000 scale)

Circle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Wolframite Ore

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -144.93181, 65.46585
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence is an unconfirmed report of a wolframite-bearing vein in a prospect hole sunk when the high bench gravels were being prospected for gold. Wolframite has been found in placers below the mouth of Discovery Gulch (Johnson, 1910, p. 248). This wolframite-bearing vein is within the Lower Schist bedrock unit described by Wiltse and others (1995) as a medium to dark gray and medium greenish-gray, fine- to medium-grained, commonly slightly calcareous quartz-muscovite schist, with lesser amounts of quartzose porphyroblastic albite-chlorite schist and chlorite schist.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Circle

Comments on the workings information

  • Workings / Exploration = A prospect hole was dug around 1908 in a placer deposit that uncovered the wolframite vein, but was caved in by 1909 (Johnson, 1910).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Johnson, 1910 in Brooks, 1910.

Reporter information

Type Date Name Affiliation Comment
Reporter 14-SEP-98 C.J. Freeman Avalon Development Corporation
Reporter 14-SEP-98 J.R. Guidetti Schaefer Avalon Development Corporation
Reporter 14-SEP-98 Clements, A.S. Avalon Development Corporation

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.