Jb Prospect

Occurrence in Juab county in Utah, United States with commodity Volcanic Materials
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 10055196
MRDS ID RE00262
Record type Site
Current site name Jb Prospect

Geographic coordinates

Geographic coordinates: -112.78748, 39.80744 (WGS84)
Elevation 1506
Relative position 7300 FEET N85W FROM KEG MTN RANCH

Site location context

Political divisions (FIPS codes)

Juab(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Keg Mountain Ranch(quadrangle 1:24,000 scale)

Lynndyl(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 012S 008W 06 SW OF SW OF NE Utah

Commodities

Commodity Importance
Volcanic Materials Primary

Materials information

Materials Type of material
Pumice Ore
Rhyolite Ore

Alteration

  • (Local) Weak Argillic Alteration, Possibly Related To Vent

Analytical data

Result BACKGROUND RADIATION: 0.03% U3O8 (HAND HELD ANALYSER)

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Topaz Mountain Rhyolite;Keg Mountain Rhyolite;
    Rock description Topaz Mountain Rhyolite;Keg Mountain Rhyolite;
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Black Crystal Tuff;Orange Crystal Tuff (Keg Mtn Rhyolite Ash Flow);
    Rock description Black Crystal Tuff;Orange Crystal Tuff (Keg Mtn Rhyolite Ash Flow);

Nearby scientific data

(1) -112.78748, 39.80744

Economic information

Geologic structures

Type of structure Regional
Structure description Deep Creek-Tintic District Mineral Belt

Ore body information

  • General form TABULAR
    Depth to top 0M

Controls for ore emplacement

  • Possible Vent Of Tuff Of Topaz Mountain Rhyolite

Comments on the geologic information

  • DEPOSIT LOCATED ALONG CONTACT BETWEEN IGNEOUS UNIT, POSSIBLY FORMED BY VENTING OF TOPAZ MOUNTAIN RHYOLITE TUFF.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Keg Mountain Area

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner Stirk, Brown And Crane
  • Type Owner
    Owner Stirk, Brown And Crane (Delta, Ut)

Workings at the site

  • Type of workings Underground
    Area 0HA
    Length 6.1M
    Overall depth 3.35M
    Overall length 3.05M
    Overall width 1.52M

Comments on the workings information

  • WORKINGS CONSIST OF A SINGLE DECLINE ABOUT 20 FEET DEEP THAT TRENDS ABOUT N77E AND PLUNGES 35.

Reference information

Bibliographic references

  • Deposit

    EVERTS, M.L., 1980, UT. GEOL. & MIN. SURVEY: ON SITE INVEST

  • Deposit

    MORRIS, H.T., SHAWE, D.R., AND LINDSEY, D.A., 1986, GEOLOGIC MAP OF THE KEG MOUNTAINS AND VICINITY, JUAB AND TOOELE COUNTIES, UTAH: UNPUBLISHED GEOLOGIC MAP, IN PREPARATION.

  • Deposit

    MORRIS, H.T., 1978, PRELIMINARY GEOLOGIC AMP OF THE DELTA 1X2 QUADRANGLE, WEST-CENTRAL UTAH: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 78-705, 9 P.

  • Deposit

    PLAVIDAL, K.R., 1987, THE GEOLOGY AND PETROLOGY OF THE EASTERN KEG MOUNTAINS, JUAB COUNTY, UTAH: SALT LAKE CITY, UNIVERSITY OF UTAH, UNPUBLISHED MASTERS THESIS.

General comments

Subject category Comment text
Deposit DEPOSIT CONSISTS OF WEAKLY ARGILLIZED STRATIFIED TUFF OF THE TOPAZ MOUNTAIN RHYOLITE CUTTING KEG MOUNTAIN RHYOLITE. THIS IS A POSSIBLE VENT AREA FOR THE STRATIFIED TUFF.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1980 Everts, Mike L. Utah Geological and Mineral Survey

Beyond USGS

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