deletions | additions       diff --git a/Gassmann's model.tex b/Gassmann's model.tex  index 78816a5..a20556d 100644  --- a/Gassmann's model.tex  +++ b/Gassmann's model.tex 
...
and  \begin{equation}   \label{eq:Vs}  V_s = \sqrt{\big(\frac{G_{sat}}{\rho_{sat}}}. \sqrt{\frac{G_{sat}}{\rho_{sat}}}.  \end{equation}  Note that the shear modulus of the saturated rock ($G_{sat}$) is also the shear modulus of the frame ($G_{dry}$). The saturated bulk modulus is determined from Gassmann's relation (eq.: \ref{eq:Kdry}). The saturated bulk density ($\rho_{sat}$) is given by  \begin{equation}