File:Figure 2. Tamanrasset River. Compilation of North Africa paleoclimate records for the last known period of activity of the Timiris Canyon.jpg

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Description	English: (a) Sapropels record from core ODP Leg 160 (site 967, Eastern Mediterranean Sea) together with summer insolation (June, July and August) at 25 °N . The AHPs—identified using the sapropels (except for the early Holocene AHP)—are highlighted in green. (b) Continental humidity index from grain-size measurements of core GeoB7920 ( 20.75 °N;18.58 °W), (c) Terrigenous Flux of ODP658 site (20.75 °N; 18.58 °W), (d) the estimated latitudinal position of the sedimentary Sahara–Sahel boundary (black line) with its uncertainty (grey dashed lines). (e) Lake level status in East and North African basins.
Date	10 November 2015
Source	https://www.nature.com/articles/ncomms9751
Author	Skonieczny, C.; Paillou, P.; Bory, A.; Bayon, G.; Biscara, L.; Crosta, X.; Eynaud, F.; Malaizé, B.; Revel, M.; Aleman, N.; Barusseau, J. -P.; Vernet, R.; Lopez, S.; Grousset, F. (2015). "African humid periods triggered the reactivation of a large river system in Western Sahara". Nature Communications. 6 (1). Bibcode:2015NatCo...6E8751S. doi:10.1038/ncomms9751. ISSN 2041-1723.

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