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| Figure 3: Comparison of depth-to-horizon in milliseconds on seismic profiles to depth-to-peak in meters of a correlative horizon on natural gamma logs. The resulting equations describing the best fit curve (blue) or the best fit curve with zero origin (red) can be used to determine sound velocity for a given depth. Averaged velocity for 100 to 200 meters depth is 1,955 meters per second. |
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U. S. Department of the Interior | U.S. Geological Survey