[First Hit]

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Fig. 7. Reflection seismograph Previous HitmapNext Hit (1934) showing contours on the Previous HitbaseNext Hit of the Ferry Lake Anhydrite. Contour interval, 50 ft. (From Walker, 1953.)

Fig. 8. Surface structure on top of Minden beds compared with seismic structure on Previous HitbaseNext Hit of the Ferry Lake Anhydrite. Contour interval, 10 ft. (From Walker, 1953.)