Rock Creek (Molybdenum)

Prospect in Alaska, United States with commodity Molybdenum
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 10308921
MRDS ID A011382
Record type Site
Current site name Rock Creek (Molybdenum)
Alternate or previous names Rock Creek Molybdenum
Related records 10282568, 10093986

Geographic coordinates

Geographic coordinates: -143.35959, 62.59779 (WGS84)
Relative position Best location: Richter and Schmoll, 1973, USGS GQ-1062, loc. 4. Accurate within 100 ft radius

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nabesna C-5(quadrangle 1:63,360 scale)

Nabesna NW(quadrangle 1:100,000 scale)

Nabesna(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Copper River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Molybdenite Ore
Biotite Gangue
Feldspar Gangue
Hornblende Gangue
Quartz Gangue

Nearby scientific data

(1) -143.35959, 62.59779

Economic information

Comments on the geologic information

  • Geologic Description = Books of molybdenite up to 1.5 in in diameter in alkali pegmatite dike; dike ranges from a few in to 2 ft in width and can be traced for 70 ft on surface; dike strikes N 20 W and dips 60 SW; pegmatite dike cuts gneissic rocks of a Jurassic-Triassic diorite complex.
  • Age = Triassic

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = Explored by open cuts and tunnel. Assays 4.6% Mo, average assay about 3% Mo (USGS B 910, p. 105); No visible Mo in workings in 1985; Type of workings: surface and underground

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Moffit, 1941, USGS B 917

General comments

Subject category Comment text
Deposit Model Name = Lode: pegmatite
Deposit Other Comments = Minor Mo deposit; prospect inactive since late 1930's. See also: Rock Creek corundum prospect (NB010).

Reporter information

Type Date Name Affiliation Comment
Reporter 05-FEB-1997 Leonard, K.R.; Elliott, R.L.; Richter, D.H. U.S. Geological Survey

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.