Recent Developments in Geophysical Exploration

Abstract

The recent developments in geophysical exploration all through the world are shortly reviewed.
The subjects in this paper are the following : 1. Introduction. 2. Geophysical exploration in coal fields, 3. Geophysical exploration in oil and gas fields. 4. Geophysical exploration in mining. 5. Engineering geophysical exploration such as underground water, dam-sites, etc.
Petroleum exploration geophysics in the United States of America have been sweepingly developed, while coal exploration geophysics as well as mining and engineering geophysics in Japan have comparatively advanced.