# Relation between lithology and seismic velocities

Series Geophysical References Series Problems in Exploration Seismology and their Solutions Lloyd P. Geldart and Robert E. Sheriff 5 141 - 180 http://dx.doi.org/10.1190/1.9781560801733 ISBN 9781560801153 SEG Online Store

## Problem 5.2

Figures 5.2a and 5.2b are based on different experimental data and plotted differently. Show the compatibility of these figures.

### Solution

Dashed lines have been drawn on Figure 5.2a to approximate the data for the three lithologies and these have been transferred to Figure 5.2b. The limestone line lies within its domain, while the dolomite and sand lines lie at the edges of their domains. The sandstone data in Figure 5.2a show the greatest scatter. The concept that ${\displaystyle Vs/Vp}$ provides a basis for distinguishing these three lithologies is generally supported.

Figure 5.2b.  S- and P-wave velocities.