Elhanan traced the paleo locations of a drainage divide in the southern Negev Desert based on fieldwork of reg soils that developed on alluvial terraces. The work included relative dating of soil chronosequence and absolute dating using Luminescence techniques.
Elhanan found that the migration rate was not constant over the past ~230 thousand years. The rate was found to be higher during periods that were characterized by a wetter climate than the current hyper-arid climate of the southern Negev.
Additional researchers include Dr. Naomi Porat from the Geological Survey of Israel, Tianyue Qu from the University of Pittsburgh and Dr. Hanan Ginat from the Dead Sea and Arava Science Center.
The study was published in PNAS
And was covered in Ynet
