Throughout the history of the Turkana Basin, the dominant hydrographic systems that have fluctuated throughout the basin have been fluvial and lacustrine systems. While this fluctuating environment has been a main theme throughout most of the Geology module, students are now turning to studying current day environments to better understand sediment accumulation in past environments. While they just recently visited Lake Turkana’s shoreline, it was now time to examine a deltaic environment. During lacustrine stages in the basin, deltas form wherever a river meets a lake. Sediment accumulation is typically high at the delta due to sediment being supplied faster at the river mouth than it can be removed by lake processes.