Autunite #8

Occurrence in Juab county in Utah, United States with commodity Uranium
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10020428
MRDS ID DC13211
Record type Site
Current site name Autunite #8
Alternate or previous names Nuclear #1

Geographic coordinates

Geographic coordinates: -113.08054, 39.70327 (WGS84)
Elevation 1719
Relative position 1/2 MILE WEST OF BM 5450 IN SEC. 10

Site location context

Political divisions (FIPS codes)

Juab(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Fish Springs(quadrangle 1:100,000 scale)

Delta(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sevier(hydrologic unit)

Escalante Desert-Sevier Lake(hydrologic accounting unit)

Escalante Desert-Sevier Lake(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management UT)

Bureau of Land Management UT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Utah Juab

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 013S 011W 09,10 Utah

Comments on the location information

  • SECTION SUBDIVISIONS SW 1/4 NW 1/4 SW 1/4 SECTION 10

Commodities

Commodity Importance
Uranium Primary

Materials information

Materials Type of material
Biotite Gangue

Analytical data

Result 1950, 4 CHANNEL SAMPLES: 0.026%, 0.013%, 0.022%, 0.009%
Result 1950 SELECTED GRAB SAMPLE: 0.200% U3O8

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Ueoc Lolig Crystal Tuff Member Of Joy Tuff
    Rock description Ueoc Lolig Crystal Tuff Mbr. Of Joy Tuff

Nearby scientific data

(1) -113.08054, 39.70327

Economic information

Geologic structures

Type of structure Regional
Structure description Basin & Range
Type of structure Local
Structure description Ore Occurs In A Down Droped Block That Has Been Faulted N-S Aprox 1/4 Mile W. Of Deposit

Ore body information

  • General form VEIN
    Strike N5W
    Dip 90
    Thickness 9.14M
    Length 30.48M
    Width 3.05M
    Depth to top 0M
    Depth to bottom 4.57M

Controls for ore emplacement

  • Fractures Less Than 1-2 Cm Wide, That Occur Both Singly & In Zones Less Than 10 M Wide & 30 M. Long

Comments on the geologic information

  • THE OPAL IN FRACTURE FILLINGS IS GENERALLY ZONED, THE ZONING BEING DEFINED BY VARING SIZE OF FIBROUS CRYSTALLITES ORIENTED PERPENDICULAR TO THE WALLS OF THE VEINS ; GEOL.DESC: DEPOSITS ARE NUMEROUS STEEP-DIPPING SMALL VEINS AND URANIFEROUS OPAL.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1950
Discoverer C.F. & Guy Wilson (Provo, Utah)

Mining district

District name Topaz Mtn

Land status

Ownership category BLM Administrative Area

Workings at the site

  • Type of workings Surface/Underground
    Length 4.57M
    Overall depth 4.57M
    Overall length 22.86M
    Overall width 12.19M

Comments on the workings information

  • WORKINGS CONSIST OF A SMALL OPEN CUT THAT IS 75 FT LONG X 40 FT WIDE, AND A SHALLOW SHAFT (15 FT DEEP)

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit URANIUM OCCURS IN THE STRUCTURE OF OPALINE SILICA IN FRACTURE FILLINGS IN TUFF. THE EXPOSED LENGTH OF ONE ZONE OF OPAL IS 70 FT LONG X 6 FT WIDE
Deposit THE URANIFEROUS OPAL FLUORESES BRIGHT YELLOW-GREEN UNDER ULTRAVIOLET LIGHT, WHICH CAN BE USED TO DISTINGUISH IT FROM NON-URANIFEROUS OPAL IN THE DISTRICT ; INFO.SRC : 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1974 Unknown U.S. Geological Survey
Updater 01-APR-1980 Everts, Mike L. U.S. Geological Survey

Beyond USGS

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