Helmstaedt, H., and Schultze, D.J., 1978, Petrologic constraints for upper mantle models of the Colorado Plateau [abs.], in Papers presented to the Conference on Plateau Uplift: Mode and Mechanism, A Lunar and Planetary Institute Topical Conference: Houston, Lunar and Planetary Institute, LPI Contribution 329, p. 16-18.
Houston, Lunar and Planetary Institute, LPI Contribution 329, p. 16-18.
AZ UT CO NM
MO CN NA AP GI YA
Petrology, Geochemical Survey,