Brooker-Dukes

Prospect in Bradford county in Florida, United States with commodities Aluminum, Fluorine-Fluorite, Iron, Magnesite, Phosphorus-Phosphates, 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. Mineral occurrence model information
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Mineral rights holdings
  14. Land status
  15. Ownership information
  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 10216376
MAS/MILS ID 0120070002
Record type Site
Current site name Brooker-Dukes

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -82.33876, 29.92714 (WGS84)
Elevation 27

Site location context

Political divisions (FIPS codes)

Clay(county)

Florida(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Brooker(quadrangle 1:24,000 scale)

Gainesville(quadrangle 1:100,000 scale)

Gainesville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Fe(hydrologic unit)

Suwannee(hydrologic accounting unit)

Suwannee(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States Florida Bradford

Public Land Survey System information

Meridian Township Range Section Fraction State
Tallahassee 006 S 020 E 30 C SWNW Florida

Commodities

Commodity Importance
Aluminum Critical Tertiary
Fluorine-Fluorite Critical Tertiary
Iron Tertiary
Magnesite Tertiary
Phosphorus-Phosphates Primary
Uranium Tertiary

Materials information

Materials Type of material
Collophane Unknown
Dolomite Unknown
Montmorillonite Unknown
Quartz Unknown

Mineral occurrence model information

Model code 244
USGS model code 34d
Deposit model name Phosphate, warm current type

Nearby scientific data

Ore Body (1) -82.33876, 29.92714

Economic information

Ore body information

  • Thickness 8M
    Length 3965M
    Width 3965M
    Area 1570HA
    Depth to top 7.9M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 MASSIVE
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 4
    Avg. Thick. Unconsol. Mat. 7.9
    Min. Thick. Unconsol. Mat. 4
    Total Surface Area (HA) 1570
    Date of Last Modification 800214

Comments on the geologic information

  • PRECISE DRY INSITU DENSITY=1.44;ASSUME 20% MOISTURE

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant Yes
Discovery year 1960
Mining method Strip-Level
Milling method Flotation

Comments on exploration

  • PROSPECT DENSITY IS 32 HOLES PER SECTION.

Mining district

District name North Florida

Mineral rights holdings

Type of mineral rights Private Lease
Type of mineral rights Fee Ownership
Type of mineral rights Minerals Only

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Kerr-Mc Gee Corp.
    Interest 100
    Home office Oklahoma
    Year 1978
    First year 1978

Comments on the production information

  • PRECISE MILL RECOVERY INCLUDING SLURRY LOSSES=95.3%

Comments on the reserve resource information

  • PEBBLE IS 3.9% OF ORE FOR ALL MATRICES. MINE RECOVERY = 85%

Workings at the site

  • Type of workings Surface
    Area 1570HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method STRIP-LEVEL
    Swell Factor .91
    Percent Waste Rock 49.7
    Avg. Overburden Thickness 7.9
    Primary Material Cover SAND, SILT
    Percentage 10
    Secondary Material Cover QUICKSAND
    Percentage 90
    Hardness of Ore QUICKSAND
    Avg. Bench Height (meters) 0
    Max. Pit Slope (degrees) 65
    Capacity 38000
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 1.25
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1979

Comments on the workings information

  • TOTAL LAND HOLDING IS 4694 HECTARES.

Reference information

Bibliographic references

  • Deposit

    Zellars-Williams, Inc., Evaluation of the phosphate deposits of Florida using the Minerals Availability System, U.S. Bureau of Mines Open File Report 112-78, NTIS: PB 286-648/AS, 1978, 199 p.

  • Deposit

    GAINESVILLE SUN, GAINESVILLE, FLORIDA, JAN 7,1975, KERR-MCGE

  • Deposit

    G PLANS IN BRADFORD COUNTY.

  • Deposit

    KERR-MCGEE CORPORATION, PROSPECTUS, JUNE,1976

  • Deposit

    Central Florida Phosphate Industry area-wide impact assessment program, existing land use, vol. IV, prepared for U.S.E.P.A. by Texas Instruments Incorporated, June 1977.

  • Deposit

    WORTHINGTON, BROOKER QUADRANGLES FLORIDA, 7 1/2 MINUTE SERIE

  • Deposit

    U.S.G.S. 1966.

General comments

Subject category Comment text
Deposit CONTRACT #J0377000 ZELLARS-WILLIAMS INC. FLA. PHOSPHATE PROJ EFFECTIVE DATE JUNE 30, 1977. ALL THE ADDITIONAL INFORMATION PRESENTED IN THIS DATA BASE MAY NOT BE CORRECT BUT REPRESENTS THE LATEST INFORMATION AVAILABLE OR DEVELOPED INFORMATION WHICH REMAINS IN THE DATA BASE ONLY FOR HISTORICAL PERSPECTIVE. THIS PROPERTY DATA FILE WAS REEVALUATED ON JULY 29,1985. THERE ARE NO COMPANY PLANS TO DEVELOP THIS PROPERTY AT THIS TIME. KERR-MCGEE DID NOT PROVIDE ANY DATA ON THIS PROPERTY. DIMENSIONS ARE IDEALIZED FOR MINABLE AREA.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-MAR-95 Buckingham, David A. U.S. Bureau of Mines
Updater 16-DEC-10 Causey, J. Douglas U.S. Geological Survey Added Model

Beyond USGS

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