Early geophysical papers of the Society of Exploration Geophysicists . earlygeophysical00soci Year: 1947 DISCOVERY BY REFLECTION SEISMOGRAPH 47 So. Oklahoma Central Area tI5n rMe Okmulgee Co. Okla. Map C LEGEND 6⢠Shot point with seismic Viola datum -1145 Actual Viola datun â¢T Pemsylvanian Taneha sand producing well ⢠Wilcox sand producing well ⢠Drilling well â $- Dry hole Fig. 3 291

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