After creating a SD volume, we can extract it on a horizon, or calculate other attributes based on SD volume. However, can we directly pick a horizon and do the stratigraphic interpretation on its vertical seismic display? I tried to pick the same horizon on both original VSD and high frequency SD VSD, but there is some discrepancy existing. Thus, another question is raised: are those thin layers shown on the high frequency SD VSD geologically real?

Thanks.