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Pargon Mountain

Past Producer in Alaska, United States with commodity Mica
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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 10001929
MRDS ID A012763
Record type Site
Current site name Pargon Mountain

Geographic coordinates

Geographic coordinates: -163.47638, 65.13628 (WGS84)
Relative position The Pargon Mountain mica mine is on the low, mountain front slopes between the two eastern headwater tributaries of Oregon Creek. It is estimated to be between 600 and 800 feet elevation. Oregon Creek is a west tributary to Boston Creek. The headwaters of Oregon Creekare on the flank of Pargon Mountain on the south side of the Bendeleben Mountains. This locality was not included by Cobb (1972; MF 417) but Cobb (1975; OFR 75-429) summarizes references under the name 'Pargon Mtn.'.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bendeleben A-3(quadrangle 1:63,360 scale)

Bendeleben SE(quadrangle 1:100,000 scale)

Bendeleben C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Mica Primary

Comments on the commodity information

  • Gangue = feldspar (including albite)

Materials information

Materials Type of material
Muscovite Ore
Biotite Gangue
Calcite Gangue
Garnet Gangue
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Clay coatings on weathered muscovite crystals is present.

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -163.47638, 65.13628
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Granite pegmatite with large muscovite crystals was first prospected here in 1901 (Anderson, 1943). Sheets of muscovite up to 20 inches long and 14 inches wide and commonly 6 inches across have been recovered and used by residents of Nome for stove windows and lamps. The pegmatite is poorly exposed and at least 6 shallow pits, 2 hand-dug trenches, and 4 dozer trenches are present. Imperfections in the muscovite are few and most unweathered crystals are clear and unstained; some strategic mica was recovered and processed in the laboratory during WW II (Anderson, 1943). Other minerals common in the pegmatite are quartz, feldspar (including albite), black tourmaline, and red garnet. Microscopic examination revealed a few small biotite crystals. Some inclusions of magnetite (in mica ?) were also observed. The host pegmatite is in high grade metamorphic rocks of the Bendeleben Mountains (Till and others, 1986).
  • Age = Probably mid-Cretaceous, the age of extensive crustal melting and granitic plutonism in this region (Hudson, 1994).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Council

Comments on the workings information

  • Workings / Exploration = The pegmatite is poorly exposed and at least 6 shallow pits, 2 hand-dug trenches, and 4 dozer trenches are present (Anderson, 1943).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Anderson, 1943

General comments

Subject category Comment text
Deposit Model Name = Granite pegmatite

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-1999 Travis L. Hudson Applied Geology

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.