Blue Chalk Mine

Past Producer in Juab county in Utah, United States with commodities Beryllium, Uranium, Fluorine-Fluorite, Lithium
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10021608
MRDS ID DE00285
Record type Site
Current site name Blue Chalk Mine

Geographic coordinates

Geographic coordinates: -113.2211, 39.70744 (WGS84)
Relative position 1.15 MILES NORTHWEST OF BELL HILL MINE

Site location context

Political divisions (FIPS codes)

Juab(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Topaz Mountain West(quadrangle 1:24,000 scale)

Fish Springs(quadrangle 1:100,000 scale)

Delta(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern Great Salt Lake Desert(hydrologic unit)

Great Salt Lake(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

BLM Administrative Area(land status)

Geographic areas

Country State County
United States Utah Juab

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 013S 012W 9 SE OF NE Utah

Commodities

Commodity Importance
Beryllium Critical Primary
Uranium Tertiary
Fluorine-Fluorite Critical Tertiary
Lithium Critical Tertiary

Materials information

Materials Type of material
Bertrandite Ore
Uranophane Ore
Calcite Gangue
Clay Gangue
Fluorite Unknown

Alteration

  • (Local) Argillic: Smectite, Sericite, K-Feldspar

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Porphyritic Rhyolite Member Of Spor Mountain Formation
    Rock description Porphyritic Rhyolite Member Of Spor Mountain Formation
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name Spor Mountain
    Rock description Spor Mountain
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)

Nearby scientific data

(1) -113.2211, 39.70744

Economic information

Geologic structures

Type of structure Regional
Structure description Tintic--Deep Creek Mineral Belt
Type of structure Local
Structure description Basin Range High Angle Faults Tilt Ore-Bearing Strata; Some May Have Been Conduits For Mineralyzing Fluids

Ore body information

  • General form TABULAR
    Strike N 30 E
    Dip 18 NW
    Thickness 7.32M

Controls for ore emplacement

  • Rhyolite Cap Rock; Permeable Tuff With Reactive Carbonate Clasts

Comments on the geologic information

  • THE BERYLLIUM TUFF MEMBER HOSTS ALL ORE ZONES; THE PORPHYRITIC RHYOLITE SERVED AS AN IMPERMEABLE BARRIER FOR MINERALIZING FLUIDS AND IS NOT MUCH MINERALIZED. ; MAJOR.UNITS: BERLLIUM TUFF MEMBER OF SPOR MOUNTAIN FORMATION (MIO); PORPHYRITIC RHYOLITE MEMBER OF SPOR MOUNTAIN FORMATION (MIO)

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Large
Significant No
Discovery year 1960
Discoverer Vitro Minerals Corporation (?)

Mining district

District name Spor Mountain

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner-Operator
    Owner Brush-Wellman Inc.

Workings at the site

  • Type of workings Surface
    Overall depth 15.24M
    Overall length 182.88M
    Overall width 91.44M

Comments on the workings information

  • DIMENSIONS ESTIMATED VISUALLY WHEN VISITED IN 1986

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORE DEPOSIT CROPS OUT AT SURFACE AND DIPS ABOUT 18 DEGREES SOUTHWEST BENEATH RHYOLITE CAP ROCK; AT 200 FT DOWN DIP FROM OUTCROP TOP OF ORE IS ABOUT 50 FT. BELOW SURFACE. ORE DEPOSIT RANGES FROM 14-24 FT. THICK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1990 Lindsey, David A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.