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

Unnamed (head of Dead Creek)

Occurrence in Alaska, United States with commodities Copper, 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. Materials information
  7. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10307369
Record type Site
Current site name Unnamed (head of Dead Creek)

Geographic coordinates

Geographic coordinates: -145.87252, 60.9096 (WGS84)
Relative position This occurrence is at an elevation of about 2400 feet at the northeastern head of Dead Creek, near the toe of an unnamed glacier. It is in the W1/2 sec. 13, T. 11 S., R. 4 W., of the Copper River Meridian. The accuracy of the location is within 2000 ft. This occurrence is shown as site C-57 in Jansons and other (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-5(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

Materials information

Materials Type of material
Malachite Ore
Pyrite Ore
Sphalerite Ore

Alteration

  • (Local) Minor oxidation of copper minerals.

Nearby scientific data

(1) -145.87252, 60.9096
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks at this occurrence are slate and graywacke of the Upper Cretaceous Valdez Group (Nelson and others, 1985). Jansons and others (1984) describe a 4-foot-wide shear zone in the slate and graywacke that contins a foot-wide zone of pyrite, spalerite, and malachite. One chip sample contained 41 ppm Zn, and 7 ppm Cu, and a grab sample contained 1.23% Zn and 0.17% Cu.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the workings information

  • Workings / Exploration = Site examined as part of a U.S. Bureau of Mines and U.S.G.S. mineral evaluation of the Chugach National Forest. One chip sample contained 41 ppm Zn, and 7 ppm Cu, and a grab sample contained 1.23% Zn and 0.17% Cu (Jansons and others, 1984).

Reference information

Bibliographic references

  • Deposit

    Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.

  • Deposit

    Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, scale 1:250,000.

  • Deposit

    Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Jansons 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.

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.