Results of Multiple High-Resolution Geophysical Surveys at Yucca Mountain

Multiple high resolution seismic reflection, gravity, magnetic and magnetotelluric lines were acquired over and near the repository area during late 1994 and 1995. The goal was to define lithology, fault structure and fracturing to a depth of the repository horizon and below, if possible, for aiding in the overall characterization of Yucca Mountain. Initial geophysical results indicate a laterally heterogeneous faulted geologic system.