Accession Number : AD0857188

Title :   Submarine Sediment Investigation in the Vicinity of the Planned Sealab III Habitat.

Descriptive Note : Informal rept.,

Corporate Author : NAVAL OCEANOGRAPHIC OFFICE NSTL STATION MS

Personal Author(s) : Stiles, Newell T. ; Kessler, Richard S.

Report Date : JUL 1969

Pagination or Media Count : 22

Abstract : A preliminary investigation of the surficial sediments at the SEALAB III Test Site shows the textural, compositional, and engineering properties to be uniform in both makeup and distribution. Sands and silty sands are the dominant textural grade. Mean diameters range from 0.09 to 0.25 mm. Carbonate content ranges from 55 to 78 percent. The carbonate in the form of biogenic calcite. Detrital silicates (feldspars, quartz, illite, and chlorite) and minor amounts of organic matter are the remaining constituents present. Wet unit weights and water contents (percent dry weight) on individual samples range from 1.56 to 1.71 g/cucm and from 45 to 77 percent, respectively. Direct shear tests were performed on a prepared sediment sample to determine the range of angles of internal friction. (Author)

Descriptors :   (*STRUCTURES, UNDERWATER), (*OCEAN BOTTOM, SOIL MECHANICS), CARBONATES, PHYSICAL PROPERTIES, SILICATES, X RAY DIFFRACTION, DEPOSITS, BATHYTHERMOGRAPH DATA, PARTICLE SIZE, SHEAR STRESSES, CALIFORNIA.

Subject Categories : Physical and Dynamic Oceanography
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE