An electrical resistivity logging study of the marine sediments at the offshore dredge disposal site, Galveston, Texas.
Hill, G.W., Jr.
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This work attempts to give a quantitative perspective to the study of electrical resistivity logging in unconsolidated sediments. An in situ, focused current probe for measuring resistances of sediments at the sediment-water interface was used. Through correlations of field and laboratory resistence data with known physical parameters of the sediment samples it has been shown that many pertinent equations may be developed. It is demostrated that these equations may be used to predict porosities, sand, silt, and clay fractions and to a lesser extent the clay minerals of a sediment. Temperature and the presence of different clay minerals are discussed with regard to their effect on resistance data and the equations developed as mentioned earlier. The author wishes to present in situ resistivity probe as an economically beneficial and scientifically useful tool in working with variations in physical parameters of sediments in a shallow marine environment.