Skip to Main content Skip to Navigation
Journal articles

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.
Complete list of metadatas

https://hal-amu.archives-ouvertes.fr/hal-01563295
Contributor : Jean-Louis Ballais <>
Submitted on : Thursday, July 20, 2017 - 2:56:52 PM
Last modification on : Thursday, March 5, 2020 - 6:58:43 PM
Long-term archiving on: : Saturday, January 27, 2018 - 1:45:29 AM

File

Morphogénèse et géosystème...
Explicit agreement for this submission

Identifiers

  • HAL Id : hal-01563295, version 1

Collections

Citation

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

Share

Metrics

Record views

139

Files downloads

197