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  3. Mineral Resource Data System (MRDS)

Joker

Occurrence in Alaska, United States with commodity Molybdenum
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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 10000172
MRDS ID A010208
Record type Site
Current site name Joker
Related records 10234073

Geographic coordinates

Geographic coordinates: -130.45566, 56.20088 (WGS84)
Relative position The Joker group of 20 claims is at an average elevation of about 1600 feet near the foot of the ridge north of the Leduc River and west of Clara Smith Glacier gorge (Berg and others, 1977, p. 73, 123, and plate 1). The site is about 0.6 of a mile west-southwest of the Alaska-British Columbia boundary. The location is accurate to within about a quarter of a mile.

Site location context

Political divisions (FIPS codes)

Prince of Wales-Hyder(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bradfield Canal A-2(quadrangle 1:63,360 scale)

Bradfield Canal SE(quadrangle 1:100,000 scale)

Bradfield Canal(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Misty Fiords National Monument Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Misty Fjords National Monument Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Molybdenite Ore
Pyrite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Intense iron oxide alteration of country rocks within 6 inches of the aplitic dikes.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -130.45566, 56.20088
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the general area of the claims are metavolcanic and metasedimentary strata of the Jurassic or older Mesozoic Hazelton Group, and Eocene quartz monzonite and granodiorite stocks that intrude the Hazelton (Berg and others, 1977, p. 15-26, and plate 1). A field investigation in 1973 by the U.S. Bureau of Mines (Berg and others, p. 42, 123) reported very sparse pyrite and possible moybdenite in quartz-calcite fissure veinlets in Hazelton schist and gneiss that is intruded by aplitic quartz monzonite dikes.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Hyder

Reference information

Bibliographic references

  • Deposit

    Berg, H.C., Elliott, R.L., Smith, J.G., Pittman, T.L., and Kimball, A. L., 1977, Mineral resources of the Granite Fiords wilderness study area, Alaska, with a section on aeromagnetic data by Andrew Griscom: U.S. Geological Survey Bulletin 1403, 151 p.

Comments on the references

  • Primary Reference = Berg and others, 1977

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins?
Deposit Other Comments = the Joker group of 20 claims were staked in 1952. No claim monuments or evidence of workings were found by the U.S. Bureau of Mines in 1973.? This site is in Misty Fiords National Monument.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-MAY-1998 H. C. Berg 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.