System and method for generating an earth model

Embodiments of generating a self-consistent earth model are provided. One embodiment comprises: a) building a structured geologic; b) generating a mineralogy volume; c) generating a porosity volume and a density volume; d) generating a pressure volume; e) generating a geophysical property volume comprising a P-wave velocity volume and a S-wave velocity volume, a relationship between P-wave velocity and S-wave velocity, or any combination thereof; f) generating mechanical elastic properties based on (i) a static to dynamic elastic property relationship and (ii) the geophysical property volume, the relationship between P-wave velocity and S-wave velocity, or any combination thereof; and g) performing mechanical earth modeling using the mechanical elastic properties, the density volume, and the pressure volume to generate a self-consistent earth model.