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

Unnamed (near Metlakatla)

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. Host and associated rocks
  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 10001626
MRDS ID A012390
Record type Site
Current site name Unnamed (near Metlakatla)

Geographic coordinates

Geographic coordinates: -131.5687, 55.12585 (WGS84)
Relative position This occurrence is at sea level, at the west end of the town of Metlakatla. The site is in section 9, T. 78 S., R. 92 E., of the Copper River Meridian. It corresponds to loc. 24 in Berg (1972 [I 684]), loc. 148 in Elliott and others (1978), and loc. 47 in Karl (1992). The location is accurate within 0.1 mile.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ketchikan A-5 NW(quadrangle 1:24,000 scale)

Ketchikan SW(quadrangle 1:100,000 scale)

Ketchikan(quadrangle 1:250,000 scale)

Federal lands

Annette Island Indian Reservation(American Indian Reservation)

American Indian Reservation BIA(Type of land area)

BIA(Federal land areas administered by BIA)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrite Ore

Alteration

  • (Local) Minor oxidation of copper mineral.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -131.5687, 55.12585
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the area of this site are schist, hornfels, and gneiss derived from an assemblage of undivided volcanic, sedimentary, and intrusive rocks of Silurian and Ordovician age (Berg, 1972; Berg and others, 1988). The rocks are polymetamorphic: the latest metamorphism, to greenschist grade, probably occurred in Late Cretaceous time. The occurrence consists of sparsely disseminated pyrite, chalcopyrite, and traces of malachite in schist (Berg, 1972, loc. 24).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Mining district

District name Ketchikan

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Berg, 1972 (I 684)

General comments

Subject category Comment text
Deposit Model Name = Disseminated lode deposit of undetermined origin.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-JUL-1999 H.C. Berg 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.