Abstract
In‐situ measurements were made of geo‐acoustic properties of the various marine sediments at the Great Bahama Bank in November 1985. The depth profiles of density and porosity of the sediment were measured by an electrical conductivity probe. The depth profile of permeability was measured by an in‐situ parameter. The water‐wave‐induced pressure and ground motion were measured by a bottom shear modulus profiler. Continuous cores of sediments were also taken for laboratory analyses. This paper presents the experimental techniques and the measurements. Two separate papers in this meeting present measurements of the complex velocities of compressional and shear waves and propagation of acoustic normal modes using in‐situ and laboratory measurements from this field test. An ELAC sub‐bottom profiler was used to survey the carbonate sediments to determine lateral and vertical variability. [The work was sponsored by ONR Code A25GG and Code 425UA.]
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