Early geophysical papers of the Early geophysical papers of the Society of Exploration Geophysicists earlygeophysical00soci Year: 1947 2 0. C. CLIFFORD, JR. During the past 6 years the study of micro-geomagnetics has pro- gressed beyond the limits of early credulity and, with the publica- tions of Heiland, Wilson, Barret, Lynton, Spraragen and others, many of these problems are nearing solution. Though other geo- R3W R 2W VERTICAL MAGNETIC INTENSITY CONTOUR IHTSpxtl SO OAUUA 19 2 7 Of WL£S : * Fig. i.—Map showing vertical magnetic intensity, 1927. physical methods have righ
Early geophysical papers of the Early geophysical papers of the Society of Exploration Geophysicists earlygeophysical00soci Year: 1947 2 0. C. CLIFFORD, JR. During the past 6 years the study of micro-geomagnetics has pro- gressed beyond the limits of early credulity and, with the publica- tions of Heiland, Wilson, Barret, Lynton, Spraragen and others, many of these problems are nearing solution. Though other geo- R3W R 2W VERTICAL MAGNETIC INTENSITY CONTOUR IHTSpxtl SO OAUUA 19 2 7 Of WL£S : * Fig. i.—Map showing vertical magnetic intensity, 1927. physical methods have rightfully supplanted magnetic methods throughout most of the Mid-Continent and Gulf Coast areas, mag- netometers must still be considered of exploratory value for special- ized structural types and for rapid, inexpensive surveys of regional character. 330
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