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Unnamed

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. 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 10000167
MRDS ID A010204
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -130.9818, 56.38977 (WGS84)
Relative position This unnamed occurrence (Elliott and Koch, 1981, p. 8, loc. 12) is at an elevation of about 2400 feet on a ridge between Blue River and West Fork of Blue River. It is on or near the boundary of Sections 24 and 25, and about 0.4 mile south-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 B-3(quadrangle 1:63,360 scale)

Bradfield Canal SW(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

Comments on the commodity information

  • Gangue = quartz (aplite)

Materials information

Materials Type of material
Molybdenite Ore
Feldspar Gangue

Mineral occurrence model information

Model code 80
USGS model code 21b
Deposit model name Porphyry Mo, low-F

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -130.9818, 56.38977
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the general area of this occurrence comprise a stock of Eocene leucocratic quartz monzonite and granodiorite (Elliott and Koch, 1981; Koch, 1996). ? the occurrence consists of a float sample collected by the U. S. Geological Survey in 1979 (Elliott and Koch, 1981, loc. 12). The sample consists of aplite rubble that contains up to about 0.5% visible molybdenite. All of the rubble at the locality is aplite, but not all of it contains visible molybdenite. The association of molybdenite, aplite, and leucocratic quartz monzonite suggests a porphyry-molybdenum deposit model.
  • Age = Eocene

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Petersburg

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Elliott and Koch, 1981

General comments

Subject category Comment text
Deposit Model Name = Porphyry molybdenum?
Deposit Other Comments = This occurrence 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.