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Porcupine River

Occurrence in Alaska, United States with commodities Nickel, Copper, Lead, Vanadium, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Links to other databases
  10. Bibliographic references
  11. General comments
  12. Reporter information

Geologic information

Identification information

Deposit ID 10002780
MRDS ID A015243
Record type Site
Current site name Porcupine River
Alternate or previous names Old Rampart
Related records 10281744

Geographic coordinates

Geographic coordinates: -141.69301, 67.14985 (WGS84)
Relative position Located along west bank of Porcupine River opposite mouth of Salmon Trout River, near Old Rampart; locality recorded here is from Cobb (1972) and locality 15 of Barker and Clautice (1978, p. 14), which varies slightly from Barker (1978, 1981); located to within 3000 ft (914 m).

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Coleen SE(quadrangle 1:100,000 scale)

Coleen(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Arctic National Wildlife Refuge(National Wildlife Refuge)

National Wildlife Refuge FWS(Type of land area)

FWS(Federal land areas administered by FWS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Nickel Critical Primary
Copper Secondary
Lead Secondary
Vanadium Critical Secondary
Zinc Critical Secondary

Comments on the commodity information

  • Ore Material = Nickeliferous alum

Nearby scientific data

(1) -141.69301, 67.14985
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Economic information

Comments on the geologic information

  • Geologic Description = Nickeliferous alum collected from a seep on the bank of Porcupine River. May indicate high Ni content in nearby gabbro/diorite or Middle Devonian sedimentary rocks. Rock samples of iron stained limestone and shales have anomalous copper (up to 500 ppm), lead (500 ppm), and zinc (2000 ppm), as well as vanadium and nickel (Barker, 1981, p. 50, no. 4; Barker and Clautice, 1978, p. 19, no. 15).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Sheenjek

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Barker and Clautice (1978)

General comments

Subject category Comment text
Deposit Model Name = Seep
Deposit Other Comments = See MAS/MILS Sequence # 0020330002 (USBM, 1995)

Reporter information

Type Date Name Affiliation Comment
Reporter 12-SEP-1996 M.T. Powers U.S. Geological Survey
Reporter 12-SEP-1996 D.F. Huber U.S. Geological Survey
Reporter 12-SEP-1996 J.M. Schmidt U.S. Geological Survey
Reporter 12-SEP-1996 J.H. Dover 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.