Holocene climatic change and man in the Sahara
1998
Petit-Maire, N. (Centre national de la recherche scientifique, Aix-en-Provence (France)) | Bryson, R.
The activity and range of the African monsoon, as well as the penetration of Atlantic cyclones and Mediterranean winter rainfall over the present-day Sahara desert, highly increased during the Holocene, between 9,500 and 7,000 year and 5,500 and 5,000 year. The desert belt then considerably shrank, although arid biotopes persisted around the Tropic of Cancer. Human Neolithic groups could then live sedentarily around the permanent lakes or swamps; they migrated from the aridified lowlands between 4,500 and 4,000 year.
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