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Morphogénèse et géosystèmes holocènes dans l'Atlas Saharien oriental et le Bas-Sahara (Algérie, Tunisie)

Abstract : The Holocene of the eastern Sahara-Atlas and the northwestern Sahara can be subdivided into four periods.The early Holocene (10,000 - 7,000 B.P.) is characterized by increasing humidity. It ends with a short arid phase around 7,700 - 7,000 B.P. The middle Holocene (7,000 - 3,500 B.P.) is likely to represent the climatic optimum. The prehistoric part of the late Holocene period shows increasing aridification. The historical late Holocene, following a short humide phase around 2,400 B.P., is characterized by the deposition of the lower terrace body and its dissection as well as by desertification leading to the remobilization of aeolian sands.
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https://hal-amu.archives-ouvertes.fr/hal-01563295
Contributor : Jean-Louis BALLAIS Connect in order to contact the contributor
Submitted on : Thursday, July 20, 2017 - 2:56:52 PM
Last modification on : Sunday, June 26, 2022 - 12:20:46 AM
Long-term archiving on: : Saturday, January 27, 2018 - 1:45:29 AM

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Jean-Louis Ballais. Morphogénèse et géosystèmes holocènes dans l'Atlas Saharien oriental et le Bas-Sahara (Algérie, Tunisie). Würzburger Geographische Arbeiten, 1992, Geowissenschaftliche Untersuchungen in Afrika - II, 84, pp.1-16. ⟨hal-01563295⟩

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