Shallow-origin FEAVO effects

() have proven this point using the very dataset on which FEAVO was first observed by (); 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 .

 

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.