Eocene–recent evolution of the Colorado River Uisdean Nicholson Andrew Carter Paula Robinson David I. M. Macdonald 10.6084/m9.figshare.7546649.v1 https://geolsoc.figshare.com/articles/journal_contribution/Eocene_recent_evolution_of_the_Colorado_River/7546649 Appendix 3: U–Pb ages of detrital zircons in the Diablo Formation (Db13) 2019-01-04 09:40:42 evolution Colorado Db detrital zircons Diablo Formation Eocene Geology