Dead Creek (prospect)

Prospect in Alaska, United States with commodities Copper, Zinc, Silver
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. 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 10307367
Record type Site
Current site name Dead Creek (prospect)

Geographic coordinates

Geographic coordinates: -145.95252, 60.8996 (WGS84)
Relative position The Dead Creek prospect is at an elevation of about 3400 feet above the north forks of Dead Creek. It is in the S1/2 sec. 21, T. 11 S., R. 4 W., of the Copper River Meridian. The site is accurately located to within 2000 ft. This prospect is shown as site C-56 in Jansons and others (1984).

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cordova D-6(quadrangle 1:63,360 scale)

Cordova NW(quadrangle 1:100,000 scale)

Cordova C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Silver Secondary

Materials information

Materials Type of material
Azurite Ore
Chalcopyrite Ore
Malachite Ore
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Oxidation of iron and copper minerals.

Mineral occurrence model information

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

Nearby scientific data

(1) -145.95252, 60.8996

Economic information

Comments on the geologic information

  • Geologic Description = The Dead Creek prospect is in Upper Cretaceous Valdez Group metasedimentary rocks (Nelson and others, 1985). The deposit consists of a 60-foot-wide shear zone containing a 10-foot-wide gossan that carries sulfide-bearing quartz veinlets (Jansons and others, 1984). Ore minerals include azurite, chalcopyrite, malachite, and sphalerite. Jansons and others (1984) report a 60-foot-long adit and one open pit. A chip sample contained: 91 ppm Cu, 0.8 ppm Ag, 140 ppm Zn; one grab sample contained: 8.9% Cu, 2.7 oz Ag/ton, and 0.31% Zn.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the workings information

  • Workings / Exploration = Jansons and others (1984) report a 60-foot-long adit and one open pit. A chip sample contained: 91 ppm Cu, 0.8 ppm Ag, 140 ppm Zn; one grab sample contained: 8.9% Cu, 2.7 oz Ag/ton, and 0.31% Zn.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Jansons and others, 1984

General comments

Subject category Comment text
Deposit Model Name = Possibly polymetallic veins (Cox and Singer, 1986; model 22c)
Deposit Other Comments = Site examined as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource evaluation of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-00 S.W. Nelson 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.