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  3. Mineral Resource Data System (MRDS)

Unnamed (near Ella Point)

Occurrence in Alaska, United States with commodity 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. Mineral occurrence model information
  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 10001569
MRDS ID A012318
Record type Site
Current site name Unnamed (near Ella Point)

Geographic coordinates

Geographic coordinates: -130.9837, 55.49669 (WGS84)
Relative position The approximate location of this occurrence is on the west shore of Behm Canal near Ella Point. The site is in section 33, T. 73 S., R. 95 E., of the Copper River Meridian. It corresponds to loc. 51 in Elliott and others (1978). The location probably is accurate within about 0.5 mile.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ketchikan B-3 NW(quadrangle 1:24,000 scale)

Ketchikan SW(quadrangle 1:100,000 scale)

Ketchikan(quadrangle 1:250,000 scale)

Federal lands

Misty Fiords National Monument Wilderness(Wilderness)

Wilderness UND(Type of land area)

UND(Federal land areas administered by UND)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Zinc Critical Primary

Materials information

Materials Type of material
Pyrite Ore
Sphalerite Ore

Mineral occurrence model information

Model code 208
USGS model code 31a
Deposit model name Sedimentary exhalative Zn-Pb
Mark3 model number 13

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -130.9837, 55.49669
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks near Ella Point consist of pelitic and quartzofeldspathic paragneiss that is intruded by an elongate stock of Cretaceous leucocratic granodiorite and quartz monzonite (Berg and others, 1988). The paragneiss represents marine argillaceous and clastic strata that underwent regional high-grade regional metamorphism in Cretaceous or Tertiary time. The premetamorphic age of the strata is uncertain. Most are probably Paleozoic, but some may be as young as Mesozoic and some as old as Precambrian (Berg and others, 1988; Gehrels and others, 1990; Crawford and others, in press). ? According to Berg and Cobb (1967, p. 182), 'A zinc-bearing lode that may be similar to the one at Moth Bay [KC086] is on the west shore of Bradfield Canal near Ella Point, where pyrite and sphalerite reportedly replace sericitic schist.' No other information about this occurrence has been made public.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Mining district

District name Ketchikan

Reference information

Comments on the references

  • Primary Reference = Berg and Cobb, 1967

General comments

Subject category Comment text
Deposit Model Name = Sedimentary exhalative Zn-Pb? (Cox and Singer, 1986; model 31a)
Deposit Other Comments = Site is in Misty Fiords National Monument Wilderness.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-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.