. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography be clays or materials behaving like clays and the shear strength was taken as one- half of the unconfined compressive strength. Average shear strength values in the ocean basins range from less than 35 g/cm^ to 175 g/cm2 for the upper 1 to 7 meters of the sea floor (Figs. 3 and 4). Sediments with a shear strength of 35 to 70 g/cm^ appear to predominate in the North. COHESION (gm/cm^ a <35 E3 35-70 n 105 UO iJ UO-175 Fig. 4 Atlantic basin. Shear s
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography be clays or materials behaving like clays and the shear strength was taken as one- half of the unconfined compressive strength. Average shear strength values in the ocean basins range from less than 35 g/cm^ to 175 g/cm2 for the upper 1 to 7 meters of the sea floor (Figs. 3 and 4). Sediments with a shear strength of 35 to 70 g/cm^ appear to predominate in the North. COHESION (gm/cm^ a <35 E3 35-70 n 105 UO iJ UO-175 Fig. 4 Atlantic basin. Shear strengths of 70 to 105 g/cm^ are the highest observed in North Atlantic and are associated with calcareous deposits or those high in cal- cium carbonate. Values of less than 35 g/cm^ are often found in coastal areas where local drainage or current conditions strongly influence the depositional en- vironment. In these areas, minor changes in the environment result in significant variations in the characteristics of the sea floor. Other areas of low shear strength are found in association with "red clay" deposits and in pockets of sediment along the Mid-Atlantic Ridge. The most prominent portion of the Atlantic basin displaying shear strengths of less than 35 gjcta- is that east of Greenland. As shown by these values (Fig. 3) and other observations to be discussed later, this section of the sea floor difi'ers considerably from other portions of the North Atlantic. This particular depositional environment is probably influenced consi- derably by a large current gyral composed primarily of the north-flowing Nor- 39. 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 Admi
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