Cordova Copper Co.

Prospect in Alaska, United States with commodities Copper, Gold
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. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10000362
MRDS ID A010428
Record type Site
Current site name Cordova Copper Co.
Alternate or previous names Fleming Spit

Geographic coordinates

Geographic coordinates: -145.72582, 60.56654 (WGS84)
Relative position This prospect is at the 500 ft. elevation in Fleming Creek about 2 miles north-northeast of the city of Cordova. It is in the E1/2 sec. 15, T. 15 S., R. 3 W., of the Copper River Meridian. Location is accurate to within 500 ft.?This site is shown as location C-34 by Jansons and others (1984) and loc. 23 by Cobb (1972: MF-392; 1979: OF 79-973).

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-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)

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
Gold Secondary

Comments on the commodity information

  • Ore Material = Copper (native)

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Cuprite Ore
Gold Ore
Malachite Ore
Copper Ore
Calcite Gangue
Chlorite Gangue
Epidote Gangue
Quartz Gangue

Alteration

  • (Local) Surface alteration & extensive oxidation at depth (Grant, 1910).

Mineral occurrence model information

Model code 90
USGS model code 24a
Deposit model name Massive sulfide, Cyprus
Mark3 model number 11

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock
    Rock unit name Orca Group
    Rock description Orca Group
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) Qs

Economic information

Comments on the geologic information

  • Geologic Description = This prospect consists of base-and precious-metal deposits in Tertary Orca Group volcanic and sedimentary rocks (Nelson and others, 1985). The volcanic rocks in the prospect area are reported to be amygdaloidal basalts (Grant, 1910). The deposits comprise impregnations and replacements of sulfides, oxides, and native metals in country rock, scattered veins of quartz or sulfides, and irregular masses of sulfide.
  • Age = Tertiary based on the age of the host rocks (Nelson and others, 1985).

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the reserve resource information

  • Reserves = Inferred reserves of 17,600 tons @ 0.64% Cu are reported by Jansons and others (1984).

Comments on the workings information

  • Workings / Exploration = 12 adits examined in 1980 (Jansons and other, 1984). The main activity took place in 1905-1909 and 1917 (Cobb, 1979: OF 79-973).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Jansons and others, 1984

General comments

Subject category Comment text
Deposit Model Name = Cyprus massive sulfide (Cox and Singer, 1986; model 24a). See also Crowe and others (1992).
Deposit Other Comments = No production, although a sample of native copper from this site was displayed in 1909 at the Alaska-Yukon Exposition (Grant, 1910).? Prospect site could not be located in 1986 during industry exploration (B. Ellis, personal commun., 2000). Site is on State of Alaska land.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-2000 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.