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Foggy Day Prospect

Occurrence in Alaska, United States with commodities Uranium, Tin, Tungsten, 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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  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 10003209
MRDS ID A016018
Record type Site
Current site name Foggy Day Prospect

Geographic coordinates

Geographic coordinates: -167.16035, 65.5176 (WGS84)
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Teller C-5(quadrangle 1:63,360 scale)

Teller NE(quadrangle 1:100,000 scale)

Teller(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imuruk Basin(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Diomede Native Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS CIRCULAR 214, PLATE 1, PROSPECT 3; USGS BULLETIN 1129, PLATE 1, "BROOKS MT. URANIUM PROSPECT." LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Uranium Primary
Tin Critical Tertiary
Tungsten Critical Tertiary
Copper Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Chalcopyrite Ore
Scheelite Ore
Tetrahedrite Ore
Hematite Gangue
Limonite Gangue
Malachite Gangue
Siderite Gangue

Analytical data

Result LENS CONTAINED MAX. OF 2.1% EU, AVG. 0.1-0.2% EU OVER WHOLE BODY
Result AVERAGE OF LENS PLUS ADJACENT GRANITE: 0.07% EU, USGS CIRCULAR 214, P. 6.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Brooks Mt Pluton
    Rock description Brooks Mt Pluton
    Chronological age 77
    Dating method K-Ar
    Type of media Biotite
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) Klgr
ListMap

Economic information

Ore body information

  • Length 4.3M
    Width 1.2M

Comments on the geologic information

  • BROOKS MT PLUTON; PORPHYRITIC-SERIATE BIOTITE GRANITE, CUT BY PEGMATITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1951

Comments on the workings information

  • 20 FT DEEP OPEN CUT; ENTIRE LENS REMOVED, 1951.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 4.3 M BY 1.2 M LENTICULAR PEGMATITE BODY CONTAINED ZEUNERITE IN TABULAR CRYSTALS UP TO 1/4 IN IN DIAMETER EMBEDDED IN HEMATITE-LINED RUGS; MINOR AMOUNTS OF PYRRHOTITE, ARSENOPYRITE, FLUORITE, SCHEELITE, CHALCOPYRITE, TERTRAHEDRITE, CASSITERITE, BISMUTH, AND ZEUNERITE DISSEMINATED IN ADJACENT OXIDIZED GRANITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey
Editor 20-SEP-1994 Mosier, Dan U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.

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.