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Isotopic record of palaeodiet of a 7.4 Ma Hipparionine fauna from the central Loess Plateau, northern China: Palaeo-ecological and palaeo-climatic implications
Li, Yangfan1,2,6; Deng, Tao1,2,3,4,5; Hua, Hong1,2; Zhang, Yunxiang1,2; Wang, Jiading1,2
2020-01-20
Source PublicationCHEMICAL GEOLOGY
ISSN0009-2541
Volume532Pages:8
Abstract

Ecological shifts from C-3 to C-4 vegetation took place in many parts of the world around 7.5-5 Ma in response to global climate change. Previous evidences from pollen, paleosol isotope, and faunal have suggested that the expansion of C-4 vegetation also occurred in the central Chinese Loess Plateau (CLP) at 7.4 Ma, which, however, is incompatible with palaeoclimate evidence from the CLP of cold and dry conditions during the late Miocene. In this study, stable oxygen (delta O-18) and carbon (delta C-13) isotope ratios preserved in tooth enamel from hipparionine were analyzed to elucidate the late Miocene (similar to 7.4 Ma) palaeoecology of the central CLP. The enamel delta C-13 values indicated a diet comprised entirely of C-3 plants, consistent with the C-3 steppe inferred from the faunal composition for the western district of the Neogene palaeozoogeographical boundary of Northern China. The delta O-18 values were indicative of a mild continental climate with Late Miocene seasonality that is not as pronounced as the modern steppe environment of Mongolia. The local landscape was most likely dominated by C-3 steppe which belonged to the western district of the Neogene palaeozoogeographical boundary of Northern China. Comparison of results presented here and with published records from other localities in this region such as the Linxia Basin, Yushe and central Inner Mongolia suggests a veer of the East Asian summer monsoon (EASM) since 7.5 Ma.

KeywordNorthern Shaanxi China Late miocene Enamel- delta C-13 and delta O-18 values Palaeoecology Palaeoclimate
DOI10.1016/j.chemgeo.2019.119353
Indexed BySCI
Language英语
WOS KeywordLATE MIOCENE ; STABLE-ISOTOPES ; CARBON ISOTOPES ; ENVIRONMENTAL-CHANGE ; TIBETAN PLATEAU ; OXYGEN ISOTOPES ; FOSSIL MAMMALS ; TERRESTRIAL ECOSYSTEM ; PEDOGENIC CARBONATE ; BONE PHOSPHATE
Funding ProjectState Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[193114] ; National Natural Science Foundation of China[41430102] ; National Natural Science Foundation of China[41272020] ; Strategic Priority Cultivating Research Program, CAS[XDPB05] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-DQC022]
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000513868400017
Funding OrganizationState Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; National Natural Science Foundation of China ; Strategic Priority Cultivating Research Program, CAS ; Key Research Program of Frontier Sciences, CAS
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/31602
Collection中国科学院南京地质古生物研究所
Corresponding AuthorDeng, Tao; Hua, Hong
Affiliation1.Northwest Univ, Inst Cenozo Geol & Environm, State Key Lab Continental Dynam, Xian, Peoples R China
2.Northwest Univ, Dept Geol, Xian, Peoples R China
3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
4.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
6.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Li, Yangfan,Deng, Tao,Hua, Hong,et al. Isotopic record of palaeodiet of a 7.4 Ma Hipparionine fauna from the central Loess Plateau, northern China: Palaeo-ecological and palaeo-climatic implications[J]. CHEMICAL GEOLOGY,2020,532:8.
APA Li, Yangfan,Deng, Tao,Hua, Hong,Zhang, Yunxiang,&Wang, Jiading.(2020).Isotopic record of palaeodiet of a 7.4 Ma Hipparionine fauna from the central Loess Plateau, northern China: Palaeo-ecological and palaeo-climatic implications.CHEMICAL GEOLOGY,532,8.
MLA Li, Yangfan,et al."Isotopic record of palaeodiet of a 7.4 Ma Hipparionine fauna from the central Loess Plateau, northern China: Palaeo-ecological and palaeo-climatic implications".CHEMICAL GEOLOGY 532(2020):8.
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