. Collected reprints, Essa Institute for Oceanography. Oceanography Figure 5. Histograms showing grain-size distribution in Group I sediments of Figure 4. Labels indicate core-sampl- ing station, length of core sample, and mean diameter in millimeters. which probably behave hydraulically as silts in nature. Channel sam- ples are generally distributed around an average skewness of zero and range from about -0. 5 to +0. 5, although there is considerable overlap. Central bay-floor samples outside the channels but in areas of fine sediment mainly are skewed positively and reflect eit
. Collected reprints, Essa Institute for Oceanography. Oceanography Figure 5. Histograms showing grain-size distribution in Group I sediments of Figure 4. Labels indicate core-sampl- ing station, length of core sample, and mean diameter in millimeters. which probably behave hydraulically as silts in nature. Channel sam- ples are generally distributed around an average skewness of zero and range from about -0. 5 to +0. 5, although there is considerable overlap. Central bay-floor samples outside the channels but in areas of fine sediment mainly are skewed positively and reflect either a coarse sand or a shell fragment admixture with the uniform silt-clay type. The majority of these samples of Group II character are in the areas of net deposition and thus probably represent a single sediment sequence laid down by tidal currents in the deeper and low-turbulence zones of the system. The Group I samples are sands with modal sizes in the medium and fine grades with variable additions of shell fragments at the coarse end of the distribution and silt-clay matrix at the fine end. This vari- ation in minor components causes the spread in values shown in Figure 75. 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 Institute for Oceanography; Atlantic Oceanographic Laboratories (U. S. ); Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories. Washington, D. C. : U. S. Dept. of Commerce, Environmental Science Services Administration, Research Laboratories : For sale by the Supt. of Docs. , U. S. G. P. O.
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