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  3. Mineral Resource Data System (MRDS)

Emma Mine

Past Producer in Rich county in Utah, United States with commodity Phosphorus-Phosphates
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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. Mineral rights holdings
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10041744
MRDS ID M057497
MAS/MILS ID 0490330014
Record type Site
Current site name Emma Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -111.06251, 41.72812 (WGS84)
Elevation 1987
Location accuracy 100(meters)
Relative position 4300 FT NE OF LARSEN SPRING

Site location context

Political divisions (FIPS codes)

Rich(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rex Peak(quadrangle 1:24,000 scale)

Logan(quadrangle 1:100,000 scale)

Ogden(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Bear(hydrologic unit)

Upper Bear(hydrologic accounting unit)

Bear(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

BLM Administrative Area(land status)

Geographic areas

Country State County
United States Utah Rich

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 011N 008E 05 Utah

Comments on the location information

  • SECTION SUBDIVISIONS C. OF SECTION 5; LATITUDE-LONGITUDE VALUES CALCULATED FROM TOWNSHIP, RANGE, SECTION.
  • THE MINE IS ON THE EAST LIMB OF THE CRAWFORD SYNCLINE

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Comments on the commodity information

  • PHOSPHATE ROCKS HAVE AN OOLITIC TEXTURE

Materials information

Materials Type of material
Whitlockite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Rex Chert Member Of Phosphoria Formation;Meade Peak Member Of Phosphoria Formation;Weber Sandstone;Brazer Limestone
    Rock description Rex Chert Member Of Phosphoria Formation;Meade Peak Member Of Phosphoria Formation;Weber Sandstone;Brazer Limestone
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

Main Entrance (1) -111.06251, 41.72812
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Woodruff Thrust And Crawford Thrust

Ore body information

  • General form TABULAR
    Strike N 20 E
    Dip 60 W
    Thickness 7.01M
    Depth to top 0M
    Depth to bottom 7.01M

Controls for ore emplacement

  • Crawford Mt. Syncline

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Non-metallic
Deposit size Large
Significant No
Discovery year 1897
Year of first production 1954

Mining district

District name Crawford Mountain

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category Private
Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner San Francisco Chemical Co.
  • Type Owner
    Owner Bradley Estates

Comments on the production information

  • NO PRODUCTION FIGURES AVAILABLE

Comments on the reserve resource information

  • MINE WORKED OUT

Comments on the workings information

  • ORIGINAL TUNNEL DRIVEN NORTH ALONG EAST LIMB OF SYNCLINE BUT LATER OPEN CUT TO MAXIMIZE ORE RECOVERY

Reference information

Bibliographic references

  • Deposit

    TRIPP, B.T., 1980, ON SITE INVESTIGATION: UTAH GEOL. AND MINERAL SURVEY.

  • Deposit

    KING, D.L., 1967, SAN FRANCISCO CHEM. CO.: IAG FIFTEENTH ANN. FIELD CONF.

  • Deposit

    WIDEMAN, F.L., 1958, MINING INCLINED BEDS OF PHOSPHATE ROCK, SAN FRANCISCO CHEMICAL CO. MINES: U.S.B.M. IC-7849

  • Production

    TRIPP, B.T., 1980, ON SITE INVESTIGATION: UTAH GEOL. AND MINER. SUR.

General comments

Subject category Comment text
Deposit DEPOSIT SIMILAR TO ARIKAREE MINE, TOTAL THICKNESS OF SECTION IS 18 FT, 3 IN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1978 Wong, George (Tooker, Ed) Bureau of Land Management
Updater 01-MAY-1980 Tripp, Bryce T. U.S. Geological Survey

Beyond USGS

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

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