Nealey, L.D., Unruh, D.M., Ludwig, K.R., and Maldonado, Florian, 1995, Three-dimensional analysis of Sr-Nd-Pb isotopic data for upper Cenozoic volcanic rocks, Colorado Platueau-Basin and Range transition zone [abs.]: Eos, Transactions, American Geophysical Union, v. 76, no. 46, p. F684.
