View the Published Paper at Quaternary Research at this Link: Quaternary Research 2025
Lead Author: Gosia Mahoney
Co-Authors: Rolfe D. Mandel, Paul R. Hanson and Sherilyn C. Fritz
Overview:
Deposits exposed in the incised valley of the South Fork Dismal River revealed the existence of a dune-dammed lake in this portion of the Nebraska Sand Hills during the Early Holocene. This study used diatom analysis as well as OSL and radiocarbon dating to explore the intricate relationships between groundwater, surface water and sand movement to help determine when the lake formed and how long it persisted. It showed the complex response of landscapes and local hydrologic systems to climate and environmental changes.
Sediment exposures analyzed in the Dismal River valley, showing a record of a dune damming event in the Nebraska Sand Hills
