1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (Left Fork)

Occurrence in Alaska, United States with commodities Copper, Silver
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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 10307284
Record type Site
Current site name Unnamed (Left Fork)

Geographic coordinates

Geographic coordinates: -164.71338, 65.51932 (WGS84)
Relative position This occurrence is at the mouth of Left Fork, a west tributary to Kougarok River. It is 2.5 miles west of the Nome-Taylor road and about a 1,000 feet west of the mouth of Louisa Creek, a small east tributary to Kougarok River. This is locality 3 of Gamble (1988).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bendeleben C-6(quadrangle 1:63,360 scale)

Bendeleben NW(quadrangle 1:100,000 scale)

Bendeleben(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imuruk Basin(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore

Nearby scientific data

(1) -164.71338, 65.51932
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Gamble (1988) describes this occurrence as disseminated chalcopyrite in chlorite schist and reports one per cent copper and 15 ppm silver from one sample. Bedrock exposed in the area around the mouth of Left Fork is part of a mafic metavolcanic assemblage that Till and others (1986) consider to be Ordovician in age.
  • Age = Unknown; if the occurrence is related to a volcanogenic massive sulfide environment then mineralization would be Paleozoic in age.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Kougarok

Reference information

Bibliographic references

  • Deposit

    Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

  • Deposit

    Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Gamble, 1988

General comments

Subject category Comment text
Deposit Model Name = Unknown; possibly related to volcanogenic massive sulfide environment

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-99 Travis L. Hudson Applied Geology

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.