Skip to main content
Swiss Journal of Geosciences
Fig. 13 | Swiss Journal of Geosciences

Fig. 13

From: A laboratory approach for the calibration of seismic data in the western part of the Swiss Molasse Basin: the case history of well Humilly-2 (France) in the Geneva area

Fig. 13

Average seismic velocity of compressional and shear-waves are plotted against the content of various rock-forming minerals. It shows that the compressional velocities decrease with increasing quartz and clay content, while for shear waves the correlation is opposite for quartz (decrease) than for clay (increase). Despite a certain dispersion of the data, that we interpret as due to factors such as alterations and diagenesis, we observe a positive correlation between velocities (P- and S-waves) and dolomite content. Less evident is the correlation of velocities with calcite content and with evaporitic minerals. Error bars are within symbols

Back to article page