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. Coastal changes, eastern Lake Michigan, 1970-1974. Coast changes. Table 5. Sediment statistics 1973 to December 197 summary, eastern Lake Michigan (October Profile line Foreshore Backshore | Sand size (ram) Composition (pet by weight) Sand size (mm) Conpositio 1 (pet by weight) Median Std. dev.^ Gravel Sand Silt Median Std. Gravel Sand Silt 1 < < 2 < < 3 < 4 < 5
. Coastal changes, eastern Lake Michigan, 1970-1974. Coast changes. Table 5. Sediment statistics 1973 to December 197 summary, eastern Lake Michigan (October Profile line Foreshore Backshore | Sand size (ram) Composition (pet by weight) Sand size (mm) Conpositio 1 (pet by weight) Median Std. dev.^ Gravel Sand Silt Median Std. Gravel Sand Silt 1 < < 2 < < 3 < 4 < 5 6 < CO 7 8 < 9 < 10 11 < 12 < < 13 14 < 15 16 17 < Average ^All values are annual averages of 12 monthly averages. Data taken in the same month (, October 1973 and October 1974) were first averaged together. ^This Is the standard deviation of 12 monthly median sand sizes, not the average standard deviation of the sample distributions. D E io 1. 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 Birkemeier, William A. (William Allen), 1951-; Coastal Engineering Research Center (U. S. ). Fort Belvoir, Va. : U. S. Army, Corps of Engineers, Coastal En
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