. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 6oo W. L. Stubblefield, R. W. Permmter & D. J. P. Swift The EG&G sidescan unit was towed approximately 9 m above the bottom at speeds of 3-4 knots. Each channel recorded a strip of the bottom 75 m wide. A time maik, which was subsequently correlated to a position, was annotated on the record every five minutes. Laboratory methods Grab sample aliquots were processed for grain size distribution in accordance with standard sedimentological labo
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 6oo W. L. Stubblefield, R. W. Permmter & D. J. P. Swift The EG&G sidescan unit was towed approximately 9 m above the bottom at speeds of 3-4 knots. Each channel recorded a strip of the bottom 75 m wide. A time maik, which was subsequently correlated to a position, was annotated on the record every five minutes. Laboratory methods Grab sample aliquots were processed for grain size distribution in accordance with standard sedimentological laboratory procedures. The sand fraction (-i-o (p> x >^-o(p) was analyzed by a rapid sediment analyzer (RSA) which measures the fall velocity of the sand through 132 cm of water. An assumption was made that the material was of uniform density, that of quartz (2-65). The fine fraction (<4-o cp) was examined with a Coulter counter which operates on the principle of varying voltage pulses across an aperture opening. Data from 40»30'n 40*20'N. 74000'W .^^?3Sslc> 73°50'W 73''40'W ==^ Orgonic muds Coarse sands I I I {I { Siity - fine sands :-;.yy: Sandy gravel I [ Fine-med. sands W^^ Artifact grovel Figure 3. Surficial sediment distribution in the New York Bight Apex, based on macroscopic, ship-borne observation of samples. From unpublished data of A. Cok and G. Freeland. Depths in fathoms. 947. 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.
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