The Alleret rnaar (Massif Central, France): A new lacustrine sequence of the early Middle Pleistocene in western Europe

被引：18
|
作者：
Pastre, Jean-Francois [1 ]
Gauthier, Agnes [1 ]
Nomade, Sebastien [2 ]
Orth, Paul [1 ]
Andrieu, Ana [1 ]
Goupille, Franck [1 ]
Guillou, Herve [2 ]
Kunesch, Stephane [1 ]
Scaillet, Stephane [2 ]
Renne, Paul Randall [3 ]
机构：
[1] CNRS, UMR 8591, Lab Geog Phys, F-92195 Meudon, France
[2] CEA, CNRS, Lab Sci Climat & Environm, F-91198 Gif Sur Yvette, France
[3] Berkeley Geochronol Ctr, Berkeley, CA 94709 USA
来源：
COMPTES RENDUS GEOSCIENCE | 2007年 / 339卷 / 16期
关键词：
lacustrine sedimentation; tephrochronology; early Middle Pleistocene; palynology; diatoms; Massif Central; France;
D O I：
10.1016/j.crte.2007.09.019
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The Alleret maar (Massif Central, France) provides a long lacustrine sequence (40.6 m) attributed to the early Middle Pleistocene. Sediment, pollen and diatoms analysis of its upper part (AL2 core, 14.6 m) indicates two temperate phases marked by high lake levels, forest development and vegetation expansion. They are separated by a cold period during which lake level drops, coarse sediment input increases and steppic and xerophilous plants develop. Pollen data suggests that this sequence belongs to the upper part of the Cromerian complex. These results are in agreement with the 557 +/- 3 ka (+/- 12 ka, including all errors) 40Ar/39Ar age obtained from an interbedded tephra layer emitted by the Mont-Dore/Sancy strato-volcano and establish that this sequence probably covers the MIS 15 substages.
引用
收藏
页码：987 / 997
页数：11
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