Handbook of geophysical exploration at sea / Руководство по геофизическим исследованиям на море

The percentage composition of the subject matter of this revised edition is approximately the same as that for the first, but the number of chapters has increased significantly. This necessitated the publication of a companion volume. In addition to dealing with various geophysical exploration methods, it adds and emphasizes the use of radiometric methods to explore for hard minerals found in sediments on and beneath the ocean floor. The chapters describing the various methods have been added because of their extensive usefulness in finding hard minerals of economic value, as well as in the search for hydrocarbons. The former also qualify for inclusion in this volume because these too are basically remote sensing methods; and can therefore be included in the generally accepted definition of the basic subject of Geophysics.
There is a great diversity of pertinent scientific areas comprising the broad subject of “ Geophysical Exploration at Sea” , but these can be classified into three major categories, namely: (a) potential field methods, as represented for example by gravity, magnetic, electrical, and telluric current methods; (b) those based on elastic wave theory, as it applies to the generation, transmission, reception and display of acoustic and seismic waves, as they propagate in the sea and into unconsolidated and consolidated bottom sediments; and (c) radiometric methods. <...>