Blackjack Prospect

Occurrence in Juab county in Utah, United States with commodities Gold, Silver, Lead, Copper
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. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10095902
MRDS ID RE00174
Record type Site
Current site name Blackjack Prospect
Alternate or previous names Empire Mines Co. Includes Boston Tintic District Group

Geographic coordinates

Geographic coordinates: -112.11329, 39.92606 (WGS84)
Elevation 2123
Relative position 3200 FT S 50 W FROM MAMMOTH PEAK

Site location context

Political divisions (FIPS codes)

Juab(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eureka(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)

Geographic areas

Country State County
United States Utah Juab

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 10S 2W 30 NE OF SW Utah

Comments on the location information

  • GULCH SOUTHEAST OF MAMMOTH TOWNSITE

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Copper Secondary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Contact Metamorphism

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Rock unit name Silver City Stock;
    Rock description Silver City Stock;
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Ajax Dolomite; Opohonga Limestone
    Rock description Ajax Dolomite;Opohonga;

Nearby scientific data

(1) -112.11329, 39.92606

Economic information

Geologic structures

Type of structure Regional
Structure description Ne Fissures

Ore body information

  • General form GOSSAN
    Strike N TO NE
    Dip 80 AVERAGE
  • General form GOSSAN
    Dip 80 AVERAGE

Controls for ore emplacement

  • Vertical Fissures

Comments on the geologic information

  • STOCK HAS ANASTAMOSING INTRUSIVE CONTACT AND DEFINITE AUREOLE HERE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1885

Mining district

District name Tintic District District District

Ownership information

  • Type Operator
    Owner Empire Mines Co.
    Home office Provo, Ut
  • Type Owner
    Owner Anaconda Minerals Co. (Division Of Atlantic Richfield)

Workings at the site

  • Type of workings Underground
    Length 213.36M
    Overall depth 487.68M
    Overall length 1609.3M

Comments on the workings information

  • TWO COMPARTMENT SHAFT WITH LEVELS AT 200, 300, 1400, 1600 FEET. FILLED BY ANACONDA 1979.

Comments on development

  • BOSTON TINTIC DISTRICT INCLINE NEARBY IS 240 FEET DEEP ON LIMESTONE-PORPHYRY CONTACT

Reference information

Bibliographic references

  • Deposit

    MORRIS, H.T., AND LOVERING, T.S., 1979, GENERAL GEOLOGY AND MINES OF THE EAST TINTIC DISTRICT MINING DISTRICT, UTAH AND JUAB COUNTIES, UTAH: U.S GEOLOGICAL SURVEY PROFESSIONAL PAPER 1024, 194 PP.

  • Deposit

    COOK, D.R., EDITOR, 1957, GEOLOGY OF THE EAST TINTIC DISTRICT MOUNTAINS AND ORE DEPOSITS OF THE TINTIC DISTRICT MINING DISTRICTS: UTAH GEOL. SOC. GUIDEBOOK, NO 12, 183 P.

  • Deposit

    MIRRIS, H.T., 1964, GEOLOGY OF THE EUREKA QUADRANGLE, UTAH AND JUAB COUNTIES, UTAH: U.S. GEOLOGICAL SURVEY BULLETIN 1142-K, P. K1-K29.

  • Deposit

    LINDGREN, WALDEMAR, AND LOUGHLIN, G.F., 1919, GEOLOGY AND ORE DEPOSITS OF THE TINTIC DISTRICT MINING DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 107, 276 PP.

General comments

Subject category Comment text
Deposit NO SIGNIFICANT ORE FOUND, GOSSAN REPORTEDLY DISAPPEARS AT 200 LEVEL WHICH CUTS IT.
Deposit STRONG FISSURES S SW FOR 700 FEET ON 1400 LEVEL. FAILD TO YIELD SUBSTANTIAL ORE.
Deposit Discovery Year: 1880S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1983 James, Laurence P. (Tripp, Bryce T.) Utah Geological and Mineral Survey

Beyond USGS

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

External references