Data compiled from questionnaires sent out by the SEG Geophysical Activity Committee shows that worldwide utilization of mining geophysical methods reached a new high in 1967, with total U.S. expenditures of 32 million. This was divided as follows: ground methods, 18 million; airborne methods, 10 million; and research, 4 million. For ground methods, most money was spent on the induced-polarization technique with electromagnetic methods second. World distribution of mining activity in 1967 is tabulated.

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