Preliminary Three-Dimensional Geological Framework Model for Yucca Mountain,Nevada: Report to Accompany Model Transfer to the Nuclear Regulatory Commission

摘要

The preliminary three-dimensional (3D) geological framework model described inthe report was developed for the potential high-level radioactive waste disposal site at Yucca Mountain, Nevada, by staff at the Center for Nuclear Waste Regulatory Analyses. It provides the basic geological framework within which variations in geological parameters and features both in and adjacent to the potential repository block can be viewed and analyzed, submodels can be constructed (e.g., by incorporating hydrologic or rock properties data into the framework model), and alternative models can be considered. The 3D model is currently comprised of a stack of six lithostratigraphic horizons and includes the Bow Ridge, Ghost Dance, and Solitario Canyon faults. The cross section lines contain eight boreholes which provided additional subsurface control for use in construction of the model.