IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Clumped and stable isotopes of land snail shells on the Chinese Loess Plateau and their climatic implications
Dong, Jibao1,2; Eiler, John3; An, Zhisheng1,2; Wu, Naiqin4; Liu, Weiguo1; Li, Xiangzhong1; Kitchen, Nami3; Lu, Fengyan1
2020-02-05
Source PublicationCHEMICAL GEOLOGY
ISSN0009-2541
Volume533Pages:10
AbstractWe report stable (delta C-13(shell), delta O-18(shell)) and clumped isotope (Delta(47)) compositions of modern and last glacial fossil snail shell carbonates from the Luochuan and Weinan sections on the central and southern Chinese Loess Plateau (CLP). Our study reveals that the average Delta(47) temperature (T-47) of modern snails is consistent with monitored temperatures during the snail growing season at the studied locations and is similar to 10 degrees C higher than that of fossil snails from glacial time. Moreover, the average delta C-13(shell) of modern snails is more depleted than that of fossils. We argue that the delta C-13(shell) cannot record changes in plant communities (i.e., the C3/C4 ratio) on the CLP and may mainly indicate arid conditions with depleted values reflecting reduced aridity. Additionally, the reconstructed snail body water delta O-18 (delta O-18(water)) of modern snails is more enriched than delta O-18 in modern growing season precipitation and delta O-18(water) of fossils. This contrast may be related to the high degree of evaporative enrichment of environmental water O-18 in the body/ingested by modern snails under warm conditions. Therefore, we suggest that using delta O-18(shell) to directly reconstruct the oxygen isotopes of precipitation is difficult and that higher delta O-18(shell) and delta O-18(water) values probably indicate higher environmental temperature/stronger evaporative enrichment on glacial-interglacial timescales on the CLP.
KeywordClumped isotopes Stable isotopes Land snail Temperature Chinese Loess Plateau (CLP)
DOI10.1016/j.chemgeo.2019.119414
Funding OrganizationTraining Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordRADIOCARBON AGE ANOMALIES ; SOUTHERN GREAT-PLAINS ; SYNTHETIC ARAGONITE ; YOUNGER DRYAS ; ASIAN MONSOON ; LOW-LATITUDE ; NORTH CHINA ; BODY-WATER ; CARBON ; OXYGEN
Language英语
Funding ProjectTraining Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences[QYZDY-SSW-DQC001] ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences[ZDBS-SSW-DQC001] ; MOST program[2016YFE0109500] ; National Natural Science Foundation of China[41430103] ; National Natural Science Foundation of China[41302152] ; [EAR-0909199] ; [EAR 1211378]
Funding OrganizationTraining Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; Training Program of the State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences ; MOST program ; MOST program ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000513871400004
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95616
Collection新生代地质与环境院重点实验室
Corresponding AuthorDong, Jibao
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.CALTECH, Pasadena, CA 91125 USA
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Dong, Jibao,Eiler, John,An, Zhisheng,et al. Clumped and stable isotopes of land snail shells on the Chinese Loess Plateau and their climatic implications[J]. CHEMICAL GEOLOGY,2020,533:10.
APA Dong, Jibao.,Eiler, John.,An, Zhisheng.,Wu, Naiqin.,Liu, Weiguo.,...&Lu, Fengyan.(2020).Clumped and stable isotopes of land snail shells on the Chinese Loess Plateau and their climatic implications.CHEMICAL GEOLOGY,533,10.
MLA Dong, Jibao,et al."Clumped and stable isotopes of land snail shells on the Chinese Loess Plateau and their climatic implications".CHEMICAL GEOLOGY 533(2020):10.
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