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Variation of summer precipitation delta O-18 on the Chinese Loess Plateau since the last interglacial
Zhang, Zeke1,2,3; Li, Gaojun3; Cai, Yanjun4; Liu, Zhengyu5; An, Zhisheng1,2
Corresponding AuthorZhang, Zeke(zhangzk@ieecas.cn) ; An, Zhisheng(anzs@loess.llqg.ac.cn)
2021-08-09
Source PublicationJOURNAL OF QUATERNARY SCIENCE
ISSN0267-8179
Pages7
AbstractOrbital-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.
KeywordEast Asian summer monsoon loess oxygen isotope precipitation speleothem
DOI10.1002/jqs.3358
WOS KeywordEAST-ASIAN MONSOON ; INDIAN MONSOON ; GRAIN-SIZE ; RECORDS ; CAVE ; MICROCODIUM ; TRANSITIONS ; SEQUENCES ; RAINFALL ; HISTORY
Indexed BySCI ; SCI
Language英语
Funding ProjectChinese 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 Research AreaPhysical Geography ; Geology
Funding OrganizationChinese Academy of Sciences ; Ministry of Science and Technology of China ; National Natural Science Foundation of China
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000683069900001
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16910
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorZhang, Zeke; An, Zhisheng
Affiliation1.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
Recommended Citation
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.
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