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Onslow Embayment/Frying Pan Phosphate

Occurrence in North Carolina, 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. Commodities
  6. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Reserves and resources
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10400500
Record type Deposit
Current site name Onslow Embayment/Frying Pan Phosphate

Geographic coordinates

Geographic coordinates: -77.5, 33.75 (WGS84)

Site location context

Political divisions (FIPS codes)

North Carolina(state)

United States(country)

USGS map quadrangles

Cape Fear(quadrangle 1:100,000 scale)

Cape Fear(quadrangle 1:250,000 scale)

Geographic areas

Country State
United States North Carolina

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

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 > Clastic Sedimentary Rock > Sandstone
    Rock type qualifier clayey phosphorite quartz
    Rock unit name Pungo River Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate
    Rock unit name Pungo River Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment
    Rock type qualifier surface sediment
    Rock unit name Frying Pan Formation

Nearby scientific data

(1) -77.5, 33.75
ListMap

Economic information

Comments on the geologic information

  • Phosphorite is bedded, granular, irregularly shaped intraclasts, shells.

Economic information about the deposit and operations

Operation type Offshore
Development status Occurrence
Significant Yes

Reserves and resources

  • Type In-situ
    Estimate year 2004
    Total resources 780000000metric tons
    Remarks Reference lists resources as 'probable', but I'm sure that is not up to current reporting standards, so I just list as total resources. This is over 614 sq km.

Reference information

Bibliographic references

  • 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

    Riggs, S.R., 1989. Phosphate deposits of the North Carolina coastal plain, continental shelf, and adjacent Blake Plateau, USA. In A.J.G. Notholt, R.P. Sheldon and D.F. Davidson (eds), Phosphate deposits of the world, Volume 2-- Phosphate rock resources. Cambridge University Press, Cambridge, pp. 42-52.

General comments

Subject category Comment text
General This record from Orris and Chernoff (2004) is their Deposit_No 988

Reporter information

Type Date Name Affiliation Comment
Reporter 30-DEC-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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