Accession Number : AD0864292

Title :   In Situ Determinations of the Velocities of Compressional and Shear Waves in Marine Sediments from a Research Submersible.

Descriptive Note : Research and development rept. Oct 66-Jun 68,

Corporate Author : NAVAL UNDERSEA RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA

Personal Author(s) : Hamilton, E. L. ; Bucker, H. P. ; Keir, D. L. ; Whitney, J. A.

Report Date : OCT 1969

Pagination or Media Count : 30

Abstract : In situ measurements were made of the velocity and attenuation of compressional waves and of velocities of Stoneley waves (from which shear-wave velocities were computed) at six stations in the sea floor off San Diego, California. Water depths ranged from 20 to 1130 meters, and sediment types ranged from medium sand to clayey silt. Sediment densities, porosities, and grain sizes were measured in samples taken at each station. The unique data obtained allowed tentative evaluations of models and equations, and computation of constants, for elastic and viscoelastic saturated, porous media. (Author)

Descriptors :   (*MARINE GEOLOGY, PACIFIC OCEAN), (*UNDERWATER SOUND, PROPAGATION), (*OCEAN BOTTOM, PHYSICAL PROPERTIES), ACOUSTIC PROPERTIES, UNDERWATER SOUND, ABSORPTION, VISCOELASTICITY, UNDERWATER VEHICLES, POROSITY, MATHEMATICAL MODELS, PARTICLE SIZE, SAND, CLAY, SILT, MEASUREMENT.

Subject Categories : Physical and Dynamic Oceanography
      Geology, Geochemistry and Mineralogy
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE