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New chronology of the Chinese loess-paleosol sequence by leaf wax delta D records during the past 800 k.y.
Wang, Zheng1,2; Liu, Weiguo1,2,3; Wang, Hong4; Cao, Yunning1,2; Hu, Jing1,2; Dong, Jibao1,2; Lu, Hongxuan1,2; Wang, Huangye1,2; Xing, Meng1,2; Liu, Hu1,2
Corresponding AuthorLiu, Weiguo(liuwg@loess.lgg.ac.cn) ; Wang, Hong()
2021-07-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume49Issue:7Pages:847-850
AbstractThe Chinese loess-paleosol sequences provide important archives for studying paleoenvironmental changes. However, the lack of independent and accurate time scales hinders the study between loess and other records. Asian stalagmite delta O-18 records indicate synchronous patterns of paleoprecipitation delta O-18 over large geographic regions. The record of hydrogen isotopic composition of plant wax (delta D-wax) in Chinese loess is also controlled by rainwater delta D. Both share a common origin. The linear relationship between rainfall delta O-18 and delta D variance provides the basis to tie together chronologies of the same climate event in different records. Here, we show a new loess chronology by correlating chronologies of marker boundaries of the prominent climate chronozones in stalagmite delta O-18 and summer insolation to the equivalent climate stratigraphy in the loess delta D-wax sequence. We first developed and tested this novel methodology with data since the last interglacial on a millennial scale, and then applied this approach to the loess delta D-wax sequence for the past 800 k.y. to improve the traditional chronology based on magnetic susceptibility and grain size. The new delta D-wax time series provides not only an improved chronology for studying paleoclimate changes during interglacial intervals, it also represents a unique database with which to better understand the links between the Asian monsoon changes in the Chinese loess and other global climate events, especially for the periods prior to 640 ka, for which stalagmite records are not available.
DOI10.1130/G48833.1
WOS KeywordEAST-ASIAN MONSOON ; PRECIPITATION ; VEGETATION ; VARIABILITY ; ISOTOPES ; CLIMATES ; PLATEAU ; SCALE
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA2007020202] ; National Natural Science Foundation of China[41773010]
WOS Research AreaGeology
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS SubjectGeology
WOS IDWOS:000675396700017
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16847
Collection加速器质谱中心
第四纪科学与全球变化卓越创新中心
Corresponding AuthorLiu, Weiguo; Wang, Hong
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zheng,Liu, Weiguo,Wang, Hong,et al. New chronology of the Chinese loess-paleosol sequence by leaf wax delta D records during the past 800 k.y.[J]. GEOLOGY,2021,49(7):847-850.
APA Wang, Zheng.,Liu, Weiguo.,Wang, Hong.,Cao, Yunning.,Hu, Jing.,...&Liu, Hu.(2021).New chronology of the Chinese loess-paleosol sequence by leaf wax delta D records during the past 800 k.y..GEOLOGY,49(7),847-850.
MLA Wang, Zheng,et al."New chronology of the Chinese loess-paleosol sequence by leaf wax delta D records during the past 800 k.y.".GEOLOGY 49.7(2021):847-850.
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