--> Figure 4

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Figure 4. Notice the changes in amplitude values through the application of a typical seismic processing sequence. This illustrates the changes for the zero-offset trace at the top sand reflectors shown in Figure 3. Observe the amplitude decreases with depth, and the major amplitude changes due to the amplitude correction, and deconvolution. Amplitudes from the dipping sand also change with NMO and Stack, and move with migration to proper location.