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Shallow-origin FEAVO effects

Vlad and Biondi (2002) have proven this point using the very dataset on which FEAVO was first observed by Kjartansson (1979); however, its preprocessing and preliminary velocity analysis left a lot of room for improvement. The details of the preprocessing are described and illustrated in Appendix C. A new velocity analysis, also illustrated in Appendix C, follows. The result of phase-shift migration and conversion to angle gathers is visible in Figure 2.

 
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fkapanel
Figure 2
Midpoint-angle slices, reprocessed dataset, new velocity analysis. The improvement in quality allowed the panels to go up to 25 degrees, instead of only 20 in the previous paper.
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next up previous print clean
Next: Deep-origin FEAVO effects Up: Evidence that the proposed Previous: Evidence that the proposed
Stanford Exploration Project
11/11/2002