The new edition of this classic text provides a general but comprehensive introduction to the most important methods and techniques of geophysical exploration. These methods represent a primary tool for investigation of the subsurface and are applicable to a wide range of problems. This new edition incorporates many suggestions made by users of the first edition and covers all the major advances and developments in exploration geophysics. New chapters on radiometric surveying and geophysical borehole logging are included in addition to new sections on vertical seismic profiling, marine gravimeters, time-domain electromagnetic methods, non-contacting resistivity measurements and ground-penetrating radar. The authors have also expanded their treatment of three-dimensional seismic surveying and seismic stratigraphy. The lucid style of the first edition is maintained and a major addition to this new edition is the inclusion of a set of problems at the end of each main chapter.