Abstract. Neogene deposits of the lower Colorado River valley, especially the
Miocene(?) and early Pliocene Bouse Formation, have been the focus of
intense debate regarding the early paleoenvironmental history of this
important continental-scale river system in southwestern North America and
its integration with the proto-Gulf of California. Fine-grained units within
these Neogene deposits also hold a promising archive of Pliocene
paleoclimate history for this part of the world. Because the depocenter
deposits of the Bouse Formation and the deposits that overlie and underlie it are poorly
exposed and highly weathered, the formation is ripe for study through
collection of drill cores. A workshop was held 28 February–3 March 2019 in
Parker, AZ, USA, to discuss how scientific drilling might be employed to help
resolve the Bouse controversies and improve our understanding of
paleoclimate history in the region.
Monitoring Fine-Sediment Volume in the Colorado River Ecosystem, Arizona; Bathymetric Survey Techniques
