TY - RPRT TI - Geochemical and PB, SR, and O isotopic study of the Tiva Canyon Tuff and Topopah Spring Tuff, Yucca Mountain, Nye County, Nevada AU - L.A. Neymark AU - B.D. Marshall AU - L.M. Kwak AU - Kiyoto Futa AU - S. A. Mahan PY - 1995 DO - 10.3133/ofr95134 UR - https://pubs.usgs.gov/publication/ofr95134 ID - ofr95134 ER -