Spencer, J.E., and Reynolds, S.J., 1984, Mid-Tertiary crustal extension in Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 16, no. 6, p. 664.
Spencer, J.E., and Reynolds, S.J.
Geological Society of America Abstracts with Programs, v. 16, no. 6, p. 664.
Refraction Seismology, Extensional Tectonics, Structure, Detachment Faulting,
