Relation between lithology and seismic velocities

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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 provides a basis for distinguishing these three lithologies is generally supported.

Figure 5.2b.  S- and P-wave velocities.
Figure 5.3a.  Histogram of rock densities (from Grant and West, 1965).

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