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  4. 中国科学院新生代地质与环境重点实验室
Climatic structures and intensities of the last two glacials documented by terrestrial molluscs from Chinese loess sequences

文献类型：期刊论文

作者Zhang, Dan1,7; Wu, Nai-Qin1,6,7; Li, Feng-Jiang1,5,6; Rousseau, Denis-Didier2,3; Chen, Xiao-Yun4; Dong, Ya-Jie1; Lu, Hou-Yuan1,5,7
刊名BOREAS
出版日期2020-09-25
页码13
ISSN号0300-9483
DOI10.1111/bor.12474
英文摘要Knowledge of the structures and intensities of past glaciations is crucial for understanding Quaternary palaeoclimatic evolution. Terrestrial molluscs are a reliable proxy of past environmental conditions and can provide specific climatic insights into glacials. Here we compare the climatic evolution of the last two glacials, based on mollusc fossils from the L2 and L1 loess units (equivalent to Marine Isotope Stages (MIS) 6 and 4-2, respectively) of the Xifeng and Luochuan sections of the Chinese Loess Plateau (CLP). The results show that both glacials had a tripartite structure but with different intensities, as indicated by variations in the abundance of the dominant cold-aridiphilous (CA) mollusc species,Vallonia teneraandPupilla aeoli. The first stage, from 191 to 184 ka forMIS6, and from 71 to 57 ka forMIS4, was characterized by a cold, arid climate, as indicated by the abundance ofV. teneraandP. aeoli, and the limited occurrence of thermo-humidiphilous (TH) species. The second stage, from 184 to 155 ka forMIS6, and from 57 to 29 ka forMIS3, was characterized by a relatively mild, humid climate, indicated by a decrease inV. teneraandP. aeoli, and an increase inTHspecies. The last stage, from 155 to 130 ka forMIS6, and from 29 to 11.7 ka forMIS2, experienced the coldest and driest conditions, as indicated by the dominance ofV. teneraandP. aeoliin lateMIS6 and by the reduced occurrence of the grassland biomass, necessary for the growth ofCAspecies, inMIS2. The climate duringMIS2 was much colder and drier than that during lateMIS6. We suggest that the structures of the glacials were controlled mainly by insolation driven by changing astronomical configurations, amongst which obliquity likely played the major role. The different glacial intensities across theCLPmay also have been related to variations in Northern Hemisphere ice sheets and the temperature of the tropical oceans.
WOS关键词MONSOON VARIABILITY ; NORTH-ATLANTIC ; ASIAN MONSOON ; ICE-CORE ; PLATEAU ; RECORD ; ASSEMBLAGES ; PLEISTOCENE ; INSTABILITY ; INSOLATION
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41430103] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41772186]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000572543700001
出版者WILEY
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/98259]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Wu, Nai-Qin
作者单位1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
3.Ecole Normale Super, Lab Meteorol Dynam, UMR CNRS 8539, F-75231 Paris, France
4.Geol Museum China, Beijing 100034, Peoples R China
5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
6.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Dan,Wu, Nai-Qin,Li, Feng-Jiang,et al. Climatic structures and intensities of the last two glacials documented by terrestrial molluscs from Chinese loess sequences[J]. BOREAS,2020:13.
APA Zhang, Dan.,Wu, Nai-Qin.,Li, Feng-Jiang.,Rousseau, Denis-Didier.,Chen, Xiao-Yun.,...&Lu, Hou-Yuan.(2020).Climatic structures and intensities of the last two glacials documented by terrestrial molluscs from Chinese loess sequences.BOREAS,13.
MLA Zhang, Dan,et al."Climatic structures and intensities of the last two glacials documented by terrestrial molluscs from Chinese loess sequences".BOREAS (2020):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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