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How dusty was the last glacial maximum over Europe?
Rousseau, Denis-Didier1,2,3; Antoine, Pierre4; Sun, Youbin5
通讯作者Rousseau, Denis-Didier(denis.didier.rousseau@lmd.ipsl.fr)
2021-02-15
发表期刊QUATERNARY SCIENCE REVIEWS
ISSN0277-3791
卷号254页码:16
摘要Our study focuses on European loess sequences, particularly the eolian intervals in between the observed pedogenic units. The classical concept of soil formation from parent material is reformulated to estimate of the duration and the associated sedimentation rate (SR) and mass accumulation rate (MAR) of these paleodust intervals. We show that the Greenland Stadial (GS) duration in European loess deposits includes the thickness of the overlying pedogenic unit, which in fact developed downward into the upper part of the eolian unit. The lower stratigraphical limit of the eolian unit overlying the pedogenic unit corresponds to the restart of the dust sedimentation of the younger GS. We illustrate this interpretation first by computing both SRs and MARs first for the Nussloch key sequence, the most complete European series. The correlation between Nussloch and other European loess sequences, located along a 1800 km longitudinal transect, allows computation of SR and MAR for several identified GS events. Comparing GS from marine and ice core records, our study shows that the two last Bond cycles are preserved in every European eolian record. Bulk SR and MAR are estimated and compared for these two Bond cycles, showing the highest SRs and MARs in western Europe. These indices also indicate that the last stadials, embedding an Henrich event, were not the dustiest in every Bond cycle. Our estimated MAR also differ from previously published computations, which did not take into account the various pedogenic units present in the studied loess sequences. The bulk SR and MAR estimates computed for the two last Bond Cycles from Chinese sequences from the Loess Plateau indicate lower atmospheric dust than in Europe during the Last Glacial Maximum. SR and MAR estimates computed from the fine-grained material for European records fit with Earth System model reconstructions. (C) 2020 Elsevier Ltd. All rights reserved.
关键词Loess Last glacial maximum Eurasia Sedimentation and mass accumulation rates Millennial scale variability
DOI10.1016/j.quascirev.2020.106775
收录类别SCI ; SCI
语种英语
资助项目European Union's Horizon 2020 research and innovation program (TiPES: Tipping Points in Earth System)[820970]
WOS研究方向Physical Geography ; Geology
项目资助者European Union's Horizon 2020 research and innovation program (TiPES: Tipping Points in Earth System)
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:000616643800002
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/16107
专题古环境研究室
通讯作者Rousseau, Denis-Didier
作者单位1.Paris Sci & Lettres PSL Res Univ, Ecole Normale Super, Lab Meteorol Dynam, CNRS, F-75005 Paris, France
2.Paris Sci & Lettres PSL Res Univ, Ecole Normale Super, Inst Pierre Simon Laplace, IPSL, F-75005 Paris, France
3.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
4.CNRS, Lab Geog Phys Environm Quaternaires & Actuels, 1 Pl A Briand, F-92195 Meudon, France
5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
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Rousseau, Denis-Didier,Antoine, Pierre,Sun, Youbin. How dusty was the last glacial maximum over Europe?[J]. QUATERNARY SCIENCE REVIEWS,2021,254:16.
APA Rousseau, Denis-Didier,Antoine, Pierre,&Sun, Youbin.(2021).How dusty was the last glacial maximum over Europe?.QUATERNARY SCIENCE REVIEWS,254,16.
MLA Rousseau, Denis-Didier,et al."How dusty was the last glacial maximum over Europe?".QUATERNARY SCIENCE REVIEWS 254(2021):16.
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