The primary objective of SEAM is to conduct geophysical modeling of relevance to the petroleum industry. Most of the discussion to date regarding the project and its Earth model has focused on its seismic aspects. Since the initial modeling objective of the SEAM Phase I project was variable-density acoustic simulation, P-wave velocity and density were the primary parameters defined for the model. However, the project is also simulating gravity, controlled-source electromagnetic (CSEM), and magnetotelluric (MT) data acquisition, which require the construction of a resistivity volume as well. These nonseismic simulations are funded under a research subcontract (#07121–2001) from the Research Partnership to Secure Energy for America (RPSEA).