. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 87 locally expose Pleistocene or Holocene lagoonal and backbarrier clayey sediments with a shell or gravel lag. It is suggested that the pattern of linea- tions displayed at site A has developed on an area where a thin sand cover over the gravel "basement" has been swept by elongated turbulent vortices to scour the thin sand cover and expose the gravel in the scour furrows between elongate sandy ribbons. The interrupted pattern on the ridg
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 87 locally expose Pleistocene or Holocene lagoonal and backbarrier clayey sediments with a shell or gravel lag. It is suggested that the pattern of linea- tions displayed at site A has developed on an area where a thin sand cover over the gravel "basement" has been swept by elongated turbulent vortices to scour the thin sand cover and expose the gravel in the scour furrows between elongate sandy ribbons. The interrupted pattern on the ridge flanks suggests that the coarser furrows were initially developed over a wider area but have been subsequently partially obliterated. Maclntyre and Pilkey (1969) describe bottom features very similar to those suggested above from diver observations on the North Carolina shelf. The bedforms, located in about 20 m of water, consisted of a series of elongate channels or depressed patches of coarse calcareous sand and fine. SE a. Side-scan record of well-developed large-scale current lineations from a trough. See location B in Scale is in meters, b. Corrected for lateral exaggeration. 1006. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories; Environmental Research Laboratories (U. S. ). Washington, D. C. : U. S. Dept. of Commerce, Environmental Science Services Administration, Research Laboratories : For sale by Supt. of Docs. U. S. G. P. O.
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