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Variation of summer precipitation delta O-18 on the Chinese Loess Plateau since the last interglacial

文献类型：期刊论文

作者Zhang, Zeke1,2,3; Li, Gaojun3; Cai, Yanjun4; Liu, Zhengyu5; An, Zhisheng1,2
刊名JOURNAL OF QUATERNARY SCIENCE
出版日期2021-08-09
页码7
ISSN号0267-8179
关键词East Asian summer monsoon loess oxygen isotope precipitation speleothem
DOI10.1002/jqs.3358
通讯作者Zhang, Zeke(zhangzk@ieecas.cn) ; An, Zhisheng(anzs@loess.llqg.ac.cn)
英文摘要Orbital-scale East Asian Summer Monsoon (EASM) variations inferred from loess deposits in northern China and speleothems from southern China display different dominant periods, complicating our understanding of monsoon response to insolation and ice-volume forcings. Here we integrate a new microcodium delta O-18 record from a high-resolution last interglacial loess profile with previously published data and provide a composite microcodium delta O-18 record on the Chinese Loess Plateau (CLP) since the last interglacial. The composite microcodium delta O-18 record displays distinct precessional cycles, consistent with speleothem delta O-18 records, but with different amplitude contrast (particularly during the peak interglacials). We propose that both loess and speleothem delta O-18 records exhibit covariations at precessional timescale oscillations. The discrepancy between loess and speleothem from southern China can be attributed to the influences of other processes besides summer precipitation on the proxies. A slight difference in amplitude between microcodium and speleothem delta O-18 records implies that the EASM is also influenced by inland surface boundary conditions, which has important impacts on the occurrence of EASM precipitation. Therefore, microcodium delta O-18 from the Chinese loess-paleosol sequences can be regarded as a representative proxy of EASM precipitation in northern China and then a reliable proxy reflecting the variation of EASM intensity.
WOS关键词EAST-ASIAN MONSOON ; INDIAN MONSOON ; GRAIN-SIZE ; RECORDS ; CAVE ; MICROCODIUM ; TRANSITIONS ; SEQUENCES ; RAINFALL ; HISTORY
资助项目Chinese Academy of Sciences[XDB40000000] ; Chinese Academy of Sciences[XAB2019B08] ; Chinese Academy of Sciences[132B61KYSB20170005] ; Ministry of Science and Technology of China[2019YFC1509100] ; National Natural Science Foundation of China[41420104008]
WOS研究方向Physical Geography ; Geology
语种英语
出版者WILEY
WOS记录号WOS:000683069900001
资助机构Chinese Academy of Sciences ; Ministry of Science and Technology of China ; National Natural Science Foundation of China
源URL[http://ir.ieecas.cn/handle/361006/16909]  
专题地球环境研究所_古环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Zhang, Zeke; An, Zhisheng
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
3.Nanjing Univ, Dept Earth Sci, MOE Key Lab Surficial Geochem, Nanjing, Peoples R China
4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China
5.Ohio State Univ, Dept Geog, Atmosphere Sci Program, Columbus, OH USA
推荐引用方式
GB/T 7714		 Zhang, Zeke,Li, Gaojun,Cai, Yanjun,et al. Variation of summer precipitation delta O-18 on the Chinese Loess Plateau since the last interglacial[J]. JOURNAL OF QUATERNARY SCIENCE,2021:7.
APA Zhang, Zeke,Li, Gaojun,Cai, Yanjun,Liu, Zhengyu,&An, Zhisheng.(2021).Variation of summer precipitation delta O-18 on the Chinese Loess Plateau since the last interglacial.JOURNAL OF QUATERNARY SCIENCE,7.
MLA Zhang, Zeke,et al."Variation of summer precipitation delta O-18 on the Chinese Loess Plateau since the last interglacial".JOURNAL OF QUATERNARY SCIENCE (2021):7.

入库方式： OAI收割

来源：地球环境研究所

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