气候变化领域集成服务门户(CCPortal): Chronostratigraphy of two Late Pleistocene loess-palaeosol sequences in the Rhône Valley (southeast France)

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DOI	10.1016/j.quascirev.2020.106473
	Chronostratigraphy of two Late Pleistocene loess-palaeosol sequences in the Rhône Valley (southeast France)
	Bosq M.; Kreutzer S.; Bertran P.; Degeai J.-P.; Dugas P.; Kadereit A.; Lanos P.; Moine O.; Pfaffner N.; Queffelec A.; Sauer D.
发表日期	2020
ISSN	0277-3791
卷号	245
英文摘要	A sedimentological and chronostratigraphical investigation was carried out on two loess sections located in the Mediterranean area in southeast France along the Rhône River (Lautagne) and the lower reach of a tributary of the Rhône River (Collias). High-resolution sampling (5–20 cm) for magnetic susceptibility, grain size distribution (including non-parametric end-member modelling), colour reflectance and geochemistry was performed. The chronology was based on luminescence dating of quartz grains and radiocarbon dating of small gastropod shells, coupled with hierarchical Bayesian modelling. The Collias section (∼8 m thick) records the whole last climatic cycle. It comprises a thick red basal pedocomplex S1 developed during the Last Interglacial and the Early Glacial, similar to that observed elsewhere in southern and southeastern Europe. Loess deposition occurred during the Lower (L1L2) and the Upper Pleniglacial (L1L1). It was interrupted by soil formation during the Middle Pleniglacial, of which a brown Bwk horizon has been preserved (L1S1). By contrast, the ∼5 m thick Lautagne section provides a detailed record of the Upper Pleniglacial. Weakly developed hydromorphic soils are correlated with the Greenland Interstadials GI-4 to GI-2, while the main period of coarse loess sedimentation corresponds to the Greenland Stadials GS-5 to GS-2. At a regional scale, the time of loess deposition ranges between 38.5 ka and 12 ka, with a peak at ∼28–24 ka, overlapping with the maximal advance of the Alpine Ice Sheet (AIS). This strongly suggests that regional glacier dynamics was the main driver of loess sedimentation. © 2020 Elsevier Ltd
英文关键词	Chronology; Geochemistry; Grain-size distribution; Last glacial; Loess; Southeast France
语种	英语
scopus关键词	Automatic identification; Bayesian networks; Deposition; Grain size and shape; Magnetic susceptibility; Soils; End-member modelling; Grain size distribution; Hierarchical bayesian; High resolution sampling; Loess-palaeosol sequences; Luminescence dating; Mediterranean areas; South Eastern Europe; Sediments; chronology; chronostratigraphy; geochemistry; glacier dynamics; grain size; interstadial; Last Interglacial; loess; luminescence dating; paleosol; Pleistocene; radiocarbon dating; sedimentation; tributary; Arctic; France; Greenland; Rhone River; Gastropoda
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151336
作者单位	PACEA, UMR 5199 CNRS, Université Bordeaux, Bâtiment B2, Allée Geoffroy Saint Hilaire, Pessac, 33615, France; IRAMAT-CRP2A, UMR 5060 CNRS, Université Bordeaux Montaigne, Maison de l'Archéologie, Pessac, 33607, France; Geography & Earth Sciences, Aberystwyth University, AberystwythWales SY23 3DB, United Kingdom; Inrap, 140 Avenue Du Maréchal Leclerc, Bègles, 33130, France; ASM, UMR 5140 CNRS, Université de Montpellier III, Route de Mende, Montpellier, 34199, France; Adera, PACEA-Transfert Sédimentologie & Matériaux, 162 Avenue Du Docteur Schweitzer, Pessac, 33600, France; Heidelberg Luminescence Laboratory, Institute of Geography, University of Heidelberg, Germany; Géosciences Rennes, Université de Rennes I, Rennes, 35042, France; LGP, UMR 8591 CNRS, Université Paris I Panthéon-Sorbonne/Université Paris-Est-Créteil-Val-de-Marne (UPEC), Place Aristide Briand, Meudon, 92195, France; Institute of Geography, University of Göttingen, Germany
推荐引用方式 GB/T 7714	Bosq M.,Kreutzer S.,Bertran P.,et al. Chronostratigraphy of two Late Pleistocene loess-palaeosol sequences in the Rhône Valley (southeast France)[J],2020,245.
APA	Bosq M..,Kreutzer S..,Bertran P..,Degeai J.-P..,Dugas P..,...&Sauer D..(2020).Chronostratigraphy of two Late Pleistocene loess-palaeosol sequences in the Rhône Valley (southeast France).Quaternary Science Reviews,245.
MLA	Bosq M.,et al."Chronostratigraphy of two Late Pleistocene loess-palaeosol sequences in the Rhône Valley (southeast France)".Quaternary Science Reviews 245(2020).