Geophysical density contrast
= Geophysical density contrast
{title2=$\Delta\rho=\rho_{\mathrm{body}}-\rho_{\mathrm{reference}}$}
The absolute <density> difference between a subsurface body and the material it replaces, commonly in $\mathrm{kg\,m^{-3}}$. It is the source term in local <gravity inversion>, unlike the dimensionless relative density contrast used in <cosmology>.