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Late Quaternary history of Lake Besaka, Ethiopa in Palaeoecology of Africa and the surrounding islands-Vol 13.

Lake Besaka, as a groundwater-fed lake which appears to have overflowed eastwards into the Awash during the late Pleistocene and perhaps again during the earliest Holocene, is not a sensitive indicator of climatic change. Only two major
change within the past 30,000 years.

A late holocène (c. 4500-2300 BP) climatic chronology for the southwestern Sahara in Palaeoecology of Africa and the surrounding islands-Vol 13.

Faunal and floral remains, changing lake levels, and a series of 15 radiocarbon dates from south-central Mauritania document climatic changes in the period c. 4500 to 2300 BP and provide the basis for estimation of mean annual precipitation greater

Data on Holocene vegetation in the Atlantic Sahara in Palaeoecology of Africa and the surrounding islands-Vol 13.

, palaeontological and archaeological context at the same period. However the data show no qualitative latitudinal change in vegetation during the last 40,000 years.

Interpretation paléoclimatique des changements d'environnements en Afrique du Nord et au Moyen Orient durant les 20 derniers millénaires in Palaeoecology of Africa and the surrounding islands-Vol 13.

Interpretation paléoclimatique des changements d'environnements en Afrique du Nord et au Moyen Orient durant les 20 derniers millénaires in Palaeoecology of Africa and the surrounding islands-Vol 13.

Palaeoenvironments and sedimentology of the Middle Pleistocene Olorgesailie Formation, southern Kenya Rift Valley in Palaeoecology of Africa and the surrounding islands-Vol 13.

Olorgesailie. The mineralogy and provenance of the sediments are discussed. The stratigraphic distribution of diatom associations suggest many lake level fluctuations. Alkalinities varied between about 5 and 85 meq/l. Based on alkalinity changes, three main