Geo-Marine Letters

, Volume 2, Issue 3–4, pp 185–190 | Cite as

Geohazards surveys in the North Carolina upper continental margin

  • Harold D. Palmer
Article
  • 31 Downloads

Abstract

Geophysical surveys on the upper continental slope and shelf-break area off North Carolina confirm previous suggestions that this highly dissected region is characterized by deposition of sediment swept from the adjacent shelf. Seismic reflection profiling, echo sounding and side-scan sonar studies failed to reveal conclusive evidence for slumping or other gravity processes which have been described for similar areas to the north. Outcrops appear to be lacking and the upper slope is a region of sediment accumulation and/or periodic bypassing.

Keywords

Continental Margin Continental Slope Seismic Reflection Profile Outer Continental Shelf Geological Survey Open File Report 

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References

  1. [1]
    Grow, J. A., and Markl, R. G., 1977. IPOD-USGS multichannel seismic reflection profile from Cape Hatteras to the Mid-Atlantic Ridge. Geology, v. 5, p. 625–630.CrossRefGoogle Scholar
  2. [2]
    Dillon, W. P. (ed.), 1979. Summary report for proposed oil and gas lease sale 56. U.S. Geological Survey Report, Woods Hole, MA, 59 p.Google Scholar
  3. [3]
    Grow, J. A., 1981. Structure of the Atlantic Margin of the United States. In: Geology of Passive Continental Margins: History, Structure and Sedimentologic Record (with special emphasis on the Atlantic Margin). Education Course Note Series 19, American Association Petroleum Geologists, p. 3-1-3-41.Google Scholar
  4. [4]
    Dillon, W. P., 1981. Summary report on the regional geology, environmental considerations for development, petroleum potential, and estimates of undiscovered recoverable oil and gas resources of the United States Southeastern Continental Margin in the area of proposed oil and gas lease sale 78. U.S. Geological Survey Open File Report 81-749, 108 p.Google Scholar
  5. [5]
    Schlee, J. S., Dillon, W. P., and Grow, J. A., 1979. Structure of the continental slope off the eastern United States. In: L. J. Doyle and O. H. Pilkey (eds.), Geology of Continental Slopes. Society Economic Paleontologists and Mineralogists, Special Publication 27, p. 95–117.Google Scholar
  6. [6]
    Poag, C. W., 1978. Stratigraphy of the shelf and slope of the United States. Annual Review, Earth and Planetary Sciences, v. 6, p. 427–432.Google Scholar
  7. [7]
    McGregor, B. A., and others, 1982. Wilmington Submarine Canyon: A fluvial-like system. Geology, v. 10, p. 27–30.CrossRefGoogle Scholar
  8. [8]
    Milliman, J. D., and others 1967.Alvin dives on the continental margin off the southeastern United States. Woods Hole Oceanographic Institution Report 67-80, 48 p.Google Scholar
  9. [9]
    Popenoe, P., Cashman, K. V., and Coward, E. L., 1982. A regional assessment of potential environmental hazards and limitations on petroleum development of the southeastern United States Atlantic continental shelf, slope and rise, offshore North Carolina. U.S. Geological Survey Open File Report 82-136, 67 p.Google Scholar
  10. [10]
    Carpenter, G. B., 1981. Potential geologic hazards and constraints for blocks in proposed South Atlantic OCS oil and gas lease sale 56. U.S. Geological Survey Open File Report 81-019, 325 p.Google Scholar
  11. [11]
    King, K. C., and Costain, J. K., 1982. Correlation of offshore velocity spectra with onshore sonic logs in North Carolina. Geological Society America Bulletin, v. 93, p. 37–45.CrossRefGoogle Scholar
  12. [12]
    Fitchko, R. M., 1976. Topography, shallow structure and sedimentary processes of the Atlantic Continental slope off the Carolina coast M.S. Thesis, Old Dominion University, Norfolk, VA, 118 p.Google Scholar
  13. [13]
    Stanley, D. J., and others, 1981. Current-influenced depositional provinces, continental margin off Cape Hatteras, identified by petrologic method. Marine Geology, v. 38, p. 283–312.Google Scholar
  14. [14]
    Lambert, D. N., and others, 1981. Two inclinometers for the direct measurement of seafloor gradient from a submersible. Geo-Marine Letters, v. 1, p. 69–72.Google Scholar
  15. [15]
    Rowe, G. T., 1971. Observations on bottom currents and epibenthic populations in Hatteras Submarine Canyon. Deep-Sea Research, v. 18, p. 569–581.Google Scholar

Copyright information

© A. M. Dowden, Inc. 1982

Authors and Affiliations

  • Harold D. Palmer
    • 1
  1. 1.Femto AssociatesBethesda

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