globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.02.008
论文题名:
Last Glacial palaeoenvironments at Lascaux, southwest France, with special emphasis on MIS 4 (Ognon II interstadial)
作者: Bertran P.; Allenet G.; Brenet M.; Chadelle J.-P.; Dietsch-Sellami M.-F.; Hébrard J.-P.; Madelaine G.; Mercier N.; Pasquet V.; Ponel P.; Queffelec A.; Sirieix C.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 449
起始页码: 149
结束页码: 165
语种: 英语
英文关键词: MIS 4 peat ; Ognon II interstadial ; Palaeoecology ; Palaeotemperatures ; Southwest France ; Weichselian slope deposits
英文摘要: A deep sequence of Last Glacial peats and slope deposits at the foot of the Lascaux hill was investigated using a large array of methods (geology, geophysics, 14C and OSL dating, palynology, macro-remain analysis, entomology). The peaty levels, OSL dated to between ~73 and 60 ka, are found within a doline developed in a fluvial terrace of the Vézère River. These gyttja and chalky gyttja deposits covered by fen peat yielded abundant beetle and plant (seeds, pollen) remains. Palaeoecological reconstructions suggest a cool steppe with willow stands compatible with an interstadial of marine isotopic stage (MIS) 4, probably Ognon II (GI-19.2). Aquatic and hygrophilous plants (sedges), which reflect local vegetation, and their dependent insects are equally well represented in the record. The peats are covered by a sequence of slope deposits: a coarse-grained lower unit deposited during late MIS 4, overlain by a heavily decalcified sandy unit with a boreal soil complex correlated with early MIS 3, and finally, a coarse-grained, calcareous unit formed during late MIS 3 and MIS 2 in connection with slope dynamics typical of periglacial environments. The palaeosols yielded a small Middle Palaeolithic lithic assemblage. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68488
Appears in Collections:过去全球变化的重建

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作者单位: Inrap, Bègles, France; PACEA, Université Bordeaux, Pessac, France; Inrap, Centre National de Préhistoire, Périgueux, France; Inrap, Campagne, France; Service Archéologique, Conseil Général de la Dordogne, Périgueux, France; Centre de Bio-Archéologie et d'Écologie, Institut de Botanique, Montpellier, France; Institut Mediterraneen de Biodiversite et d'Ecologie marine et continentale (IMBE), Université Aix Marseille, CNRS, IRD, Université Avignon, Marseille, France; Optisol, Agence de Dordogne, Montpon-Ménéstérol, France; IRAMAT-CRP2A, Université Bordeaux Montaigne, Pessac, France; Institut Mediterraneen de Biodiversite et d'Ecologie marine et continentale (IMBE), Université Aix Marseille, CNRS, IRD, Université Avignon, Aix-en-Provence, France; I2M, Université Bordeaux, Pessac, France

Recommended Citation:
Bertran P.,Allenet G.,Brenet M.,et al. Last Glacial palaeoenvironments at Lascaux, southwest France, with special emphasis on MIS 4 (Ognon II interstadial)[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,449
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