Abstract
Five field seasons of geoarchaeological survey in the Tadrart Acacus mountains, Messak Settafet Plateau, surrounding dune seas (Erg Uan Kasa, Edeyen of Murzuq) and adjoining Wadi Tanezzuft have yielded much palaeoclimatic information for the late Pleistocene and Holocene in a region hitherto poorly known from this point of view (Cremaschi and di Lernia 1998; Figure 5.1). The area surveyed is roughly included in a frame of co-ordinates latitude North 24°30’-26°; longitude East . It has, currently, an hyperarid climate, with mean annual precipitation of 10 mm and mean annual temperature of 30°C (Walther and Lieth, 1960). It is composed of a wide range of physiographic features: the Tadrart Acacus consisting of a deeply dissected mountain range, the Messak Settafet of a relict plateau, the ergs Uan Kasa and Murzuq of sand seas and the Wadi Tanezzuft, a large wadi today temporarily active.
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