The age of the Sahara desert.
In the Sahara region, the age of onset of the desert condition has been uncertain until now. Here we report on the discovery of 7,000,000-year-old eolian dune deposits from the northern Chad Basin. This geological archive is the oldest known evidence for desert occurrence in the Sahara.
Schuster
Mathieu
M
Université Bretagne Occidentale, Institut Universitaire Européen de la Mer, Domaines Océaniques, CNRS Unité Mixte de Recherche (UMR) 6538, 1 place Nicolas Copernic, 29280 Plouzané, France. schuster@univ-brest.fr
Duringer
Philippe
P
Ghienne
Jean-François
JF
Vignaud
Patrick
P
Mackaye
Hassan Taisso
HT
Likius
Andossa
A
Brunet
Michel
M