Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/ncomms9751 |
African humid periods triggered the reactivation of a large river system in Western Sahara | |
Skonieczny, C.1,2; Paillou, P.3; Bory, A.2; Bayon, G.1,4; Biscara, L.5; Crosta, X.6; Eynaud, F.6; Malaize, B.6; Revel, M.7; Aleman, N.8; Barusseau, J-P.8; Vernet, R.9; Lopez, S.3; Grousset, F.6 | |
通讯作者 | Skonieczny, C. |
来源期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2015 |
卷号 | 6 |
英文摘要 | The Sahara experienced several humid episodes during the late Quaternary, associated with the development of vast fluvial networks and enhanced freshwater delivery to the surrounding ocean margins. In particular, marine sediment records off Western Sahara indicate deposition of river-borne material at those times, implying sustained fluvial discharges along the West African margin. Today, however, no major river exists in this area; therefore, the origin of these sediments remains unclear. Here, using orbital radar satellite imagery, we present geomorphological data that reveal the existence of a large buried paleodrainage network on the Mauritanian coast. On the basis of evidence from the literature, we propose that reactivation of this major paleoriver during past humid periods contributed to the delivery of sediments to the Tropical Atlantic margin. This finding provides new insights for the interpretation of terrigenous sediment records off Western Africa, with important implications for our understanding of the paleohydrological history of the Sahara. |
类型 | Article |
语种 | 英语 |
国家 | France ; Belgium ; Mauritania |
收录类别 | SCI-E |
WOS记录号 | WOS:000366298800001 |
WOS关键词 | SHUTTLE IMAGING RADAR ; EASTERN SAHARA ; CAP-TIMIRIS ; DESERT ; PALEODRAINAGE ; PENETRATION ; MAURITANIA ; REGIONS ; MONSOON ; MARGIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/189342 |
作者单位 | 1.IFREMER, Unite Rech Geosci Marines, F-29280 Plouzane, France; 2.Univ Lille, CNRS, Univ Littoral Cote Opale, UMR8187,LOG, F-59000 Lille, France; 3.Univ Bordeaux, LAB, CNRS, UMR 5804, F-32271 Florac, France; 4.Royal Museum Cent Afr, Dept Earth Sci, B-3080 Tervuren, Belgium; 5.SHOM, F-29200 Brest, France; 6.Univ Bordeaux, EPOC, CNRS, UMR 5805, F-33615 Talence, France; 7.Univ Nice Sofia Antipolis, GEOAZUR, CNRS, UMR 7329, F-06560 Valbonne, France; 8.Univ Via Domitia, CEFREM, F-66860 Perpignan, France; 9.IMRS, Nouakchott, Mauritania |
推荐引用方式 GB/T 7714 | Skonieczny, C.,Paillou, P.,Bory, A.,et al. African humid periods triggered the reactivation of a large river system in Western Sahara[J],2015,6. |
APA | Skonieczny, C..,Paillou, P..,Bory, A..,Bayon, G..,Biscara, L..,...&Grousset, F..(2015).African humid periods triggered the reactivation of a large river system in Western Sahara.NATURE COMMUNICATIONS,6. |
MLA | Skonieczny, C.,et al."African humid periods triggered the reactivation of a large river system in Western Sahara".NATURE COMMUNICATIONS 6(2015). |
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