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Central Florida Land Pebble Phosphate Deposit

Producer in Polk county in Florida, United States with commodities Phosphorus-Phosphates, Fluorine-Fluorite, Uranium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10400463
Record type Deposit
Current site name Central Florida Land Pebble Phosphate Deposit
Included sites Central Land Pebble Phosphate District, South Land Pebble Phosphate District

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -82.04, 27.66 (WGS84)
Location accuracy 1000(meters)
Relative position Estimated center of deposit

Site location context

Political divisions (FIPS codes)

Polk(county)

Florida(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Duette NE(quadrangle 1:24,000 scale)

Saint Petersburg(quadrangle 1:100,000 scale)

Saint Petersburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Peace(hydrologic unit)

Peace(hydrologic accounting unit)

Peace-Tampa Bay(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States Florida Polk
United States Florida Hillsborough
United States Florida Manatee
United States Florida Hardee
United States Florida DeSoto
United States Florida Sarasota

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Fluorine-Fluorite Critical Tertiary
Uranium Tertiary

Comments on the commodity information

  • The rock is a fluor-apatite containing a little magnesium and uranium.

Alteration

  • (Local) leaching
  • (Local) supergene enrichment

Mineral occurrence model information

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

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite
    Rock unit name Bone Valley Formation

Economic information

Geologic structures

Type of structure Regional
Structure name Central Florida Platform
Type of structure Regional
Structure name Polk-Hillborough Basin

Ore body information

  • General form Bedded
    Thickness 35
    Depth to top 15.24M

Comments on the ore body information

  • Ore zone thickness varies from 15-35 ft and overburden thickness from 20-40 ft. Generally BPL is > 70%., but contours in SW part of deposit show PBL as low as 64%.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Significant Yes
Discovery year 1888
Year of first production 1890

Comments on the ownership information

  • The ownership of phosphate land within this deposit is complex. Florida Department of Environmental Protettion (2009) reported:
    "1. Agrifos Mining LLC purchased the Mobil Nichols Mine on June 28, 1996. On December 3, 2002, IMC Phosphates Company, Agrifos Mining LLC, and The Mims Group entered into an agreement to document their respective reclamation obligations for the Nichols Mine. In 2004, IMC Phosphates Company changed its name to Mosaic Phosphates Company. On July 29, 2005, Mosaic Phosphates Company became Mosaic Fertilizer, LLC.
    2. Brewster Phosphates (now Cytec Industries) is no longer engaged in mining operations and has transferred the remainder of its reclamation obligation to Kovacs Brothers Incorporated as of September 27, 2000.
    3. On June 12, 1991, the Governor and Cabinet approved a request by IMC Fertilizer, Inc. (now Mosaic Fertilizer, LLC) and Brewster Phosphates (now Cytec Industries) to consolidate their mines. Currently, the Kingsford Complex Mine includes the Kingsford Mine, the Haynesworth Mine and portions of the Lonesome Mine, which lies north of the south prong of the Alafia River. The Four Corners/Lonesome Mine now includes the Four Corners Mine and portions of the Lonesome Mine lying below the south prong of the Alafia River.
    4. Ownership of the Gardinier Fort Meade Mine was transferred to Cargill Fertilizer, Inc. on March 4, 1991. In 2004, Cargill Fertilizer, Inc. transferred its obligations to Cargill Fertilizer, L.L.C. and subsequently Mosaic Fertilizer, L.L.C on July 29, 2005.
    5. Ownership of the Bonny Lake and Hookers Prairie Mines was with of W.R. Grace and Company until November 1, 1988, when Seminole Fertilizer Corporation took over operation. On May 4, 1993, Seminole Fertilizer Corporation transferred ownership of the Bonny Lake and Hookers Prairie Mines to Cargill Fertilizer, Inc. In 2004, Cargill Fertilizer, Inc. transferred its reclamation obligations to Cargill Fertilizer, L.L.C. and subsequently became Mosaic Fertilizer, L.L.C on July 29, 2005.
    6. The reclamation and financial responsibility for 719 acres of mined land within the Noralyn/Phosphoria Mine was transferred to the Farmland Green Bay Chemical Complex by action of the Governor and Cabinet on September 11, 1990, and modified by the Department of Environmental Protection on February 8, 2001. Cargill Fertilizer, Inc. acquired ownership and reclamation responsibility from Farmland Hydro LP of the Green Bay Chemical Complex on
    November 6, 2002. Acreage from which phosphate ore removal has occurred from July 1, 1975 through December 31, 2008, but reclaimed for industrial purposes (chemical, power generation facilities, etc.) are included in Column G, Mandatory Acres Reclaimed Under Industrial Use Criteria. Final reclamation of these industrial use sites remain the responsibility of the individual company pursuant to the rules and guidelines of the Phosphate Management Program, under Chapter 62-671, 62-672 and 62-673, F.A.C. In 2004, Cargill Fertilizer, Inc. transferred its reclamation obligations to Cargill Fertilizer, L.L.C. and subsequently became Mosaic Fertilizer, L.L.C on July 29, 2005.
    " (continued in line 2)
  • "7. Florida Power Corp. Progress Energy Florida, Inc. on September 30, 2002. The Progress Energy Hines Facility is located on Mandatory and NonMandatory phosphate mined lands. All of the Mandatory Phosphate Reclamation requirements have been satisfied through variances associated with the Site Certification for the power facility or through releases of reclamation. The 2006 Rate of Reclamation data for the Progress Energy Facility was revised to explicitly show only the Mandatory Acres Mined 07/01/75 through 12/21/06 and the Mandatory Acres Reclaimed through Revegetation or for Industrial Use. Progress Energy assumed responsibility for final closure of the industrial sites varianced from mining reclamation responsibility for construction of the power facility pursuant to the rules and guidelines of the Office of Siting Coordination, as stated in Chapter 62-17 Part I, F.A.C.
    8. Any remaining areas to be mined at the Haynesworth or Lonesome Mines was to be mined by IMC Phosphates Company. IMC Phosphates Company accepted responsibility for reclamation of the following areas which were previously part of the Brewster Phosphates (now Cytec Industries) mining operation: BP-H-SPA(3), southeast of O Pond; BP-H-LB(2A), south of Doc Durance Road; BP-H-86(3), North County Road 630; BP-L-SP(8), DL Pond and IMC-KC-BOG(5), AL/BL Pond. In 2004, IMC Phosphates Company changed its name to Mosaic Phosphates Company. On July 29, 2005, Mosaic Phosphates Company became Mosaic Fertilizer, LLC.
    9. Tampa Electric Corporation (TECO) sited power generation on lands mined for phosphate. IMC-Agrico, American Cyanamid, and Brewster Phosphates mined the present location of the TECO Polk Power Station Site and completed a portion of the reclamation. However, the remaining reclamation responsibility was assumed by TECO under the Department of Environmental Protection Power Plant Site Certification. All mine reclamation/restoration/mitigation requirements and agreements have been completed. Acreage from which phosphate ore removal has occurred from July 1, 1975 through December 31, 2008, but reclaimed for industrial purposes (chemical, power generation facilities, etc.) are included in Column G, Mandatory Acres Reclaimed Under Industrial Use Criteria. Final reclamation of these
    industrial sites remain the responsibility of the individual company pursuant to the rules and guidelines of the Office of Siting Coordination, as stated in Chapter 62-17 Part I, F.A.C.
    10. The Polk County North Central Landfill is located on land that was mined for phosphate in the former Saddle Creek Mine. The last remaining reclamation requirements in the Saddle Creek Mine for parcel AGR-SC-84(3) were released to allow for expansion of the landfill. Due to the industrial nature of the landfill expansion, the Department issued a variance for the reclamation requirements and determined that the site should be under the oversight of the Southwest Florida Water Management District and the Department's Solid Waste Section for management as a solid waste facility.
    11. IMC Fertilizer, Inc. and Agrico Mining Co. merged on July 1, 1993 forming IMC Agrico. IMC Agrico assumed the reclamation responsibility for lands mined by both IMC Fertilizer and Agrico Mining Company. On August 7, 2000, IMC Agrico became IMC Phosphates Co. and assumed reclamation responsibility for the mines listed under IMC Agrico. In 2004, IMC Phosphates Company changed its name to Mosaic Phosphates Company. On July 29, 2005, Mosaic Phosphates Company became Mosaic Fertilizer, LLC.
    12. NuGulf?s Wingate Creek Mine was purchased by Cargill Fertilizer, Inc., in 2004. Later on that year, Cargill Fertilizer Inc. transferred its reclamation obligations to Cargill Fertilizer, L.L.C. This company subsequently became Mosaic Fertilizer, L.L.C on July 29, 2005."

Comments on the production information

  • Parial production obtained from CF Industries, Mosaic Mines, and IMC Phosphates 10-K reports between 1999 and 2009 is 130,107,000 tons phosphate rock at grades from 28.9 to 29.56% P2O5. Production from 1891-1977 was less than the 669,152,000 long tons reported because production from North Carolina was added to the central florida deposit from 1966-1977 (Zellars and William, 1978, p. 196). I guess the North Carolina production to be > 50,000,000 long tons.

Comments on development

  • Large scale mining progressed from shovels and dredges to present day use of draglines.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit There is no agreed upon criteria for defining bedded, stratiform sedimentary phosphate deposits. Because of this, I herein describe the basic criteria I used to define this particular deposit. The region included in this basinal phosphate deposit record is roughly defined by the surface extent of the Bone Valley Formation as shown on the state of Florida geologic map, plus part of the exposed Hawthorn Formation where deposits have been reported in the MRDS database, and areas of phosphate properties that have been spatially mapped by the Florida Bureau of Mines and Mining Regulation. Also included are some areas where younger rocks presumably bury the Bone Valley.
Deposit The deposit consist mainly of land pebbles (but also contains river pebble in southern part); granular phosphatic matrix; reworked pebble deposits of Tertiary (Miocene-Pliocene) age in the Hawthorne Group - Peace River Formation - Bone Valley Member. Matrix material consist of carbonate, sandstone, dolomite, and clay. (Orris and Chernoff, 2004)

Reporter information

Type Date Name Affiliation Comment
Reporter 08-NOV-10 Causey, J.Douglas U.S. Geological Survey

Beyond USGS

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

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