Influence of geochemical processes on nutrient spiraling within the recirculation zones of the Colorado River in the Grand Canyon
Bennett JB, Petroutson B, Springer A, Parnell RA. 1995. Influence of geochemical processes on nutrient spiraling within the recirculation zones of the Colorado River in the Grand Canyon. Flagstaff, Arizona
Brief Description: Final Report Full Description: The objective of this study is to characterize the biogeochemical environments of reattachment-bar return current channels within recirculation zones along the Colorado River below Glen Canyon Dam. In confined, debris-fan dominated rivers, return current channels (RCCs) provide backwater habitat for several endangered species. To understand how different flow regimes affect biogeochemical cycling along the Colorado River, we examined ground-water compositions collected from 62 PVC wells at depths of 3 and 6 meters within four reattachment bars at different flow rates and during rising and falling flows.