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Pungo River Deposit

Prospect in Beaufort county in North Carolina, United States with commodities Fluorine-Fluorite, Phosphorus-Phosphates, 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. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  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. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10272588
MAS/MILS ID 0370130008
Record type Site
Current site name Pungo River Deposit

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -76.51357, 35.48009 (WGS84)
Elevation 100
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Beaufort(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pamlico Beach(quadrangle 1:24,000 scale)

Bayboro(quadrangle 1:100,000 scale)

Rocky Mount(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pamlico(hydrologic unit)

Pamlico(hydrologic accounting unit)

Neuse-Pamlico(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States North Carolina Beaufort

Commodities

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

Materials information

Materials Type of material
Collophane Ore
Dolomite Gangue
Montmorillonite Gangue
Quartz Gangue

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 Pungo River Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite
    Rock unit name Yorktown Formation
  • Host or associated Associated
    Rock type Sedimentary Rock > Carbonate
  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock type qualifier clayey quartz

Nearby scientific data

Ore Body (1) -76.51357, 35.48009
ListMap

Economic information

Ore body information

  • Thickness 2.5M
    Length 14296M
    Width 14296M
    Area 20437HA
    Depth to top 67M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 REPLACEMENT
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 50
    Avg. Thick. Unconsol. Mat. 67
    Min. Thick. Unconsol. Mat. 50
    Total Surface Area (HA) 20437
    Date of Last Modification 960625

Comments on the geologic information

  • Density is for dry in-situ ore; assume 20% moisture
  • Phosphorite is bedded; granular; irregularly shaped intraclasts.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant Yes
Discovery year 1950
Mining method Strip-Level
Milling method Flotation

Mining district

District name North Carolina Phosphate District
District name Aurora

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Federal Lease
Type of mineral rights State Lease

Land status

Ownership category State

Ownership information

  • Type Owner
    Owner State Of North Carolina
    Home office North Carolina
    Year 1979
    First year 1979
  • Type Owner
    Owner Fmc, Inc.
    Year 1979
    First year 1979
  • Type Owner
    Owner Other Numerous Small Owners
    Year 1979
    First year 1979

Reserves and resources

  • Type In-situ
    Estimate year 1981
    Inferred 354680000mt ore
    Total resources 354680000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 9.5 wt-pct Phosphorus Major 1981

Comments on the workings information

  • Total land holding is 20,437 hectares. Land consists mostly of saltwater marshes, riverine and estuarine systems. No demonstrated reclamation process exists for these areas. Vegetation disturbed is of both salt and fresh water types used as feeding grounds for aquatic food industry. Water disturbance would also encompass large groundwater drawdown which may induce saltwater intrusion. In estuarine and saltwater marsh area.

Reference information

Bibliographic references

  • Reserve-Resource

    Zellars-Williams Inc., Evaluation Of Phosphate Deposits In Georgia, North Carolina, And South Carolina, Using The Bumines Minerals Availability System. Bumines Contract# J0377000, Sept. 1978, P54.

  • Deposit

    Orris, G.J., and Chernoff, C.B., 2004, Table of world phosphate deposits, in Hein, J.R., ed., Life cycle of the Phosphoria Formation: From deposition to the post-mining environment: Elsevier, Amsterdam, Handbook of exploration and environmental geochemistry v. 8, Cd-ROM.

  • Deposit

    Zellars-Williams Inc., Evaluation Of The Phosphate Deposits Of Georgia, North Carolina, And South Carolina Using The Minerals Availability System, Bumines Open File Report 13-79.

General comments

Subject category Comment text
Deposit Contract #J0377000 Zellars-Williams, Inc. Florida Phosphate Project. Effective date June 13, 1977. Dimensions are idealized for minable area.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-JUN-96 Weaver, M.A. U.S. Bureau of Mines
Updater 16-NOV-10 Causey, J. Douglas U.S. Geological Survey Update record with information from Orris and Chernoff (2004).

Beyond USGS

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

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