Megadroughts and late Holocene dune activation at the eastern margin of the Great Plains , north-central Kansas , USA

@inproceedings{Hanson2009MegadroughtsAL,
  title={Megadroughts and late Holocene dune activation at the eastern margin of the Great Plains , north-central Kansas , USA},
  author={Paul R Hanson and Alan Ford Arbogast and William C. Johnson and R. Matthew Joeckel and Aaron R. Young},
  year={2009}
}
Optical and radiocarbon dating indicates that alluvium underlying dunes near Abilene was deposited at or before 45 ka, and that the overlying dunes were active at 1.1–0.5 ka. Geochemical data indicate that the Abilene dune sand is immature and was derived from the underlying Pleistocene alluvium, and not from Holocene age Smoky Hill River deposits. These… CONTINUE READING