TY - RPRT TI - Preliminary three-dimensional discrete fracture model of the Topopah Spring Tuff in the Exploratory Studies Facility, Yucca Mountain area, Nye County, Nevada AU - L. O. Anna PY - 1998 DO - 10.3133/ofr97834 UR - https://pubs.usgs.gov/publication/ofr97834 ID - ofr97834 ER -