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  4. 中国科学院新生代地质与环境重点实验室
Terrestrial carbonate oxygen isotopes constraints on the interplay between westerlies and monsoonal rains modulating the Cenozoic climate on the northeastern Tibetan Plateau

文献类型：期刊论文

作者Yang, Yibo1; Fang, Xiaomin1,2; Han, Wenxia3; Wang, Yongli4; Galy, Albert5
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2022-12-15
卷号608页码:12
关键词Carbonate ?13C ?18O Para-Tethys Sea Westerlies East Asian monsoon
ISSN号0031-0182
DOI10.1016/j.palaeo.2022.111289
英文摘要The relative contribution of the westerlies and the Asian monsoon has played a critical role in regulating the evolution of the Cenozoic Asian interior environment in response to regional tectonic uplift and global climate change. Here, we reconstruct a long-term record of atmospheric moisture oxygen isotopes in the Asian interior using the oxygen isotopic composition of authigenic carbonates in terrestrial sediments from the Xining Basin on the northeastern Tibetan Plateau spanning the last 52 Myrs. On the VPDB scale, the average carbonate delta 18O is characterised by a long-term decrease from-1.5%o at ca. 43 Ma to-7.5%o at 33 Ma and smaller variations from -7%o to-8.5%o after 33 Ma, with the exception of one period that contains samples with higher delta 18O values at -6%o at 17-14 Ma. At the same time, there is a corresponding long-term rise in average carbon isotope delta 13C values from-9.5%o at ca. 43 Ma to-3.5%o at 33 Ma, followed by a less variable but similar variation in delta 18O values after 33 Ma. The oxygen and carbonate isotopic compositions are negatively correlated before 33 Ma and positively after, suggesting a transition at-33 Ma in the context of atmospheric circulation coupled with regional aridity. The delta 18O record can be explained by a simple binary mixing model of the atmospheric moisture between the recycling moisture with a positive delta 18O value in the westerlies-dominated region and the monsoon rainfall or related moisture with a negative delta 18O value from the Indo-Pacific Ocean. In that case, the first-order carbonate delta 18O decrease from ca. 43 Ma to 33 Ma was primarily controlled by the retreat of the Para-Tethys Sea, which induced a remarkable decline in westerly rainfall relative to the monsoon. After-33 Ma, the contribution from the westerlies could be constant and the lower limits of the carbonate delta 18O values are modelled by episodic increases in monsoon rainfall corresponding to enhanced Asian monsoon periods at 26-24 Ma, 17-14 Ma, and 9-8 Ma induced by the tectonic uplift of the Tibetan Plateau and the global climate. Our study, also, suggests that the Oligocene was a transitional stage of moisture sources from the dominance of Eocene westerlies to the Miocene-Quaternary monsoon in continental Asian environments.
WOS关键词XINING BASIN ; TARIM BASIN ; PALYNOLOGICAL RECORD ; ASIAN CLIMATE ; UPLIFT ; ARIDIFICATION ; EVOLUTION ; GROWTH ; MARGIN ; MA
资助项目Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; [XDA20070201] ; [41972195] ; [42171010] ; [2019QZKK0707]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:000878773800002
出版者ELSEVIER
资助机构Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; Strategic Priority Research Pro- gram of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program
源URL[http://ir.iggcas.ac.cn/handle/132A11/107702]  
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Fang, Xiaomin
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Environm, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Linyi Univ, Coll Resources & Environm Sci, Shandong Prov Key Lab Water & Soil Conservat & Env, Linyi 276000, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
5.Univ Lorraine, Ctr Rech Petrog & Geochim, UMR7358, CNRS, F-54500 Metz, Vandoeuvre les, France
推荐引用方式
GB/T 7714		 Yang, Yibo,Fang, Xiaomin,Han, Wenxia,et al. Terrestrial carbonate oxygen isotopes constraints on the interplay between westerlies and monsoonal rains modulating the Cenozoic climate on the northeastern Tibetan Plateau[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2022,608:12.
APA Yang, Yibo,Fang, Xiaomin,Han, Wenxia,Wang, Yongli,&Galy, Albert.(2022).Terrestrial carbonate oxygen isotopes constraints on the interplay between westerlies and monsoonal rains modulating the Cenozoic climate on the northeastern Tibetan Plateau.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,608,12.
MLA Yang, Yibo,et al."Terrestrial carbonate oxygen isotopes constraints on the interplay between westerlies and monsoonal rains modulating the Cenozoic climate on the northeastern Tibetan Plateau".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 608(2022):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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