干旱区生态环境知识资源中心(Arid): Alluvial records of the African Humid Period from the NW African highlands (Moulouya basin, NE Morocco)

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DOI	10.1016/j.quascirev.2021.106807
	Alluvial records of the African Humid Period from the NW African highlands (Moulouya basin, NE Morocco)
	Depreux, Bruno; Lefevre, David; Berger, Jean-Francois; Segaoui, Fatima; Boudad, Larbi; El Harradji, Abderrahmane; Degeai, Jean-Philippe; Limondin-Lozouet, Nicole
通讯作者	Depreux, B (corresponding author), Univ Paul Valery Montpellier 3, UMR ASM 5140, Route Mende, F-34199 Montpellier 05, France.
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2021
卷号	255
英文摘要	This paper presents Early to Late-Holocene sedimentary deposits from the Moulouya catchment, the main Mediterranean river basin of Morocco. Within this region, recent studies have focused particularly on marine or lacustrine archives. Studies on fluvial archives are thus important for improving our understanding of palaeoenvironmental responses to Holocene climatic changes at regional and supraregional scales. Here, we studied alluvial archives from two basins 300 km apart in the mid-Moulouya basin and High Plateaus region located in the rarely studied NW African highlands, which are currently defined by arid and cold climatic conditions. Strong similarities between these deposits in terms of morpho-pedosedimentary and chronostratigraphical evolution demonstrate a regional morphogenic pattern controlled by Holocene climatic changes. Using a multi-proxy approach, we document rapid palaeoenvironmental changes and orbital-scale morphogenic changes. Four particular phases of regional geomorphic stability have been dated to ca. 10800-10500, 10200-9900, 9300, and 8900 cal. BP. Enhanced flooding periods that reflect times of climatic aridification may correlate with Early and Mid-Holocene Rapid Climatic Changes, especially during the 9.2 ka event. Furthermore, the Moulouya alluvial archives record the development of an extensive wetland formation and tufa sedimentation within the alluvial plains between ca. 10.8 to 6-5 cal ka BP. This formation is recognised at a regional scale across the upper and mid-Moulouya catchments, whereas it is missing from other Moroccan fluvial archives. These lasting humid climatic conditions (ca. 10.8-6/5 ka cal. BP.) are consistent with those recorded in the sub-Saharan records during the last African Humid Period (AHP), and suggest a potential linkage between the NW African highlands and the Saharan domain. Hence, we assume that this fluvio-palustrine wetland formation located at 32 degrees-34 degrees N is consistent with the northern archives recording AHP wet conditions. (C) 2021 Elsevier Ltd. All rights reserved.
英文关键词	Holocene Fluvial geomorphology Palaeoclimatology North Africa Morocco Moulouya basin Rapid climatic changes (RCCs) African humid period (AHP) Wetland
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000620778300003
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368991
作者单位	[Depreux, Bruno; Lefevre, David; Degeai, Jean-Philippe] Univ Paul Valery Montpellier 3, MCC, CNRS, UMR ASM 5140, Montpellier, France; [Depreux, Bruno; Lefevre, David; Degeai, Jean-Philippe] Univ Paul Valery Montpellier 3, LabEx ARCHIMEDE, Campus St Charles, Montpellier, France; [Berger, Jean-Francois] Univ Lumiere Lyon 2, UMR EVS IRG 5600, CNRS, Lyon, France; [Segaoui, Fatima; Boudad, Larbi] Univ Mohammed 5, Fac Sci, Rabat, Morocco; [El Harradji, Abderrahmane] Univ Mohammed 1, Fac Lettres & Sci Humaines, Oujda, Morocco; [Limondin-Lozouet, Nicole] Univ Paris 01, CNRS, Meudon, France; [Limondin-Lozouet, Nicole] Univ Paris Est Creteil, UMR LGP 8591, Meudon, France
推荐引用方式 GB/T 7714	Depreux, Bruno,Lefevre, David,Berger, Jean-Francois,et al. Alluvial records of the African Humid Period from the NW African highlands (Moulouya basin, NE Morocco)[J],2021,255.
APA	Depreux, Bruno.,Lefevre, David.,Berger, Jean-Francois.,Segaoui, Fatima.,Boudad, Larbi.,...&Limondin-Lozouet, Nicole.(2021).Alluvial records of the African Humid Period from the NW African highlands (Moulouya basin, NE Morocco).QUATERNARY SCIENCE REVIEWS,255.
MLA	Depreux, Bruno,et al."Alluvial records of the African Humid Period from the NW African highlands (Moulouya basin, NE Morocco)".QUATERNARY SCIENCE REVIEWS 255(2021).