Spontaneous potential and modified point resistivity logs were made from select cores of marine sediments. The logs have been compared with cone penetrometer and vane shear measurements, shipboard pH and Eh tests, X-ray radiographs and photographs, and water content, density, carbonate content, and grain size analyses from the same cores.

Indications are that electric logs can be of value in identifying zones of interest which have subtle property differences, can be used to correlate from one core to another, and display apparent relations to other properties.

Improvements in instruments and techniques may lead to the in-situ quantitative application of electric logging techniques in all depths of water.

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