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  3. Mineral Resource Data System (MRDS)

Unnamed (on southeast side of Latouche Island)

Occurrence in Alaska, United States with commodity Copper
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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. Mineral occurrence model information
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10307302
Record type Site
Current site name Unnamed (on southeast side of Latouche Island)

Geographic coordinates

Geographic coordinates: -147.9125, 59.97955 (WGS84)
Relative position The occurrence is located on the southeast side of Latouche Island in the E1/2 of section 28, T. 2 S., R. 9 E., of the Seward Meridian. This occurrence is described as a landslide block of unknown size (Nelson and others, 1984). This location is accurate to within a half a mile.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Blying Sound D-3(quadrangle 1:63,360 scale)

Blying Sound NE(quadrangle 1:100,000 scale)

Blying Sound(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Resurrection River-Frontal Resurrection Bay(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Chugach Alaska Corporation(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

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

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrrhotite Ore

Alteration

  • (Local) None reported.

Mineral occurrence model information

Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Nearby scientific data

(1) -147.9125, 59.97955
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The occurrence is on a landslide block of slate and graywacke of the Tertiary Orca Group which contains three beds with chalcopyrite and pyrrhotite that are conformable to the bedding. The beds are up to 2 foot wide and extend along strike for 500 feet. A 20 foot wide chip sample across all three zones contained 2.5% copper and 18 ppm silver (Nelson and others, 1984). Other limonite-stained rock are exposed in this area.
  • Age = Tertiary.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Comments on the workings information

  • Workings / Exploration = None reported.

Reference information

Bibliographic references

  • 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 = Nelson and others, 1985

General comments

Subject category Comment text
Deposit Model Name = Besshi massive sulfide (Cox and Singer, 1986; model 24b).

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-99 Jeff A. Huber 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.