1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

Unnamed (southwest of lower Scott Glacier)

Occurrence in Alaska, United States with commodities Copper, Zinc, 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 10307384
Record type Site
Current site name Unnamed (southwest of lower Scott Glacier)

Geographic coordinates

Geographic coordinates: -145.32149, 60.61961 (WGS84)
Relative position This occurrence is at an elevation of about 1000 feet approximately 0.5 mile southeast of lower Scott Glacier. It is in the SE1/4 sec. 25, T. 14 S., R. 1 W., of the Copper River Meridian. Site accurate to within 1000 ft. Site is location C-16 of 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 C-4(quadrangle 1:63,360 scale)

Cordova NE(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)

Federal lands

Chugach National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Silver Secondary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Pyrrhotite Ore
Sphalerite Ore

Nearby scientific data

(1) -145.32149, 60.61961
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence consists of a 1000 ft. x 200 ft. outcrop area containing several shear zones up to several feet wide in slate and graywacke of the Tertiary Orca Group (Nelson and others, 1985). Sulfides, including bornite, chalcopyrite, pyrrhotite, and sphalerite, occur as lenses and disseminations both in the country rocks and in the shear zones (Jansons and others, 1984). Samples collected and analyzed by the U.S. Bureau of Mines showed the following results. Seven chip samples contained 39 ppm to 2.3% Cu, 68 ppm to 5.9% Zn, and <0.1 ppm to 29 ppm Ag. Seven grab samples contained 36 ppm to 14.8% Cu, 58 ppm to 8.7% Zn, and 0.1 ppm to 8 oz. Ag/ton.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the reserve resource information

  • Reserves = Inferred reserves of 19,300 tons @ 1.06% Cu, 2.06% Zn, and 13.6 ppm Ag (Jansons and others, 1984).

Comments on the workings information

  • Workings / Exploration = Samples collected and analyzed by the U.S. Bureau of Mines showed the following results. Seven chip samples contained 39 ppm to 2.3% Cu, 68 ppm to 5.9% Zn, and <0.1 ppm to 29 ppm Ag. Seven grab samples contained 36 ppm to 14.8% Cu, 58 ppm to 8.7% Zn, and 0.1 ppm to 8 oz. Ag/ton (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

General comments

Subject category Comment text
Deposit Other Comments = Occurrence is in the Chugach National Forest.

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.