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  4. 中国科学院新生代地质与环境重点实验室
High-Resolution Eocene Magnetostratigraphy of the Xijigou Section: Implications for the Infilling Process of Xining Basin, Northeastern Tibetan Plateau

文献类型：期刊论文

作者Yang, Fan2,3,4; Guo, Zhengtang2,3,4; Zhang, Chunxia1,2,3; Md, Sayem Abu Sadat6; He, Zhilin2,3,4; Deng, Chenglong4,5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2019-08-01
卷号124期号:8页码:7588-7603
关键词magnetostratigraphy Eocene Xining Basin stratigraphic correlation sediment accumulation rate
ISSN号2169-9313
DOI10.1029/2019JB017624
英文摘要The Eocene was the initial stage of the Cenozoic global climatic transition from greenhouse to icehouse conditions. Our understanding of the Eocene climate is based mainly on marine records, and comparison of marine and terrestrial climate records of the Eocene has revealed inconsistencies. Thus, there is a need for more continuous, high-resolution Eocene sedimentary records from land. Xining Basin in the northeastern Tibetan Plateau contains a sequence of well-exposed and complete Eocene strata. Extending previous research, we have conducted a new high-resolution lithostratigraphic and magnetostratigraphic study of the Xijigou section in Xining Basin. The results indicate that the Xijigou section spans the interval from similar to 34.2 to 53 Ma, representing an average sediment accumulation rate of similar to 1.4 cm/kyr. The basal ages of the Mahalagou and Honggou Formations are similar to 39.9 and similar to 52.4 Ma, respectively. A comparison of all available Eocene sedimentary records from Xining Basin indicates that the strata deposited during similar to 53-35 Ma developed conformably and are well correlated over space. We conclude that sediment deposition was not affected by large-scale tectonic activity at the time and rather was controlled by the global climate. After similar to 35 Ma, the sediment accumulation rate increased to similar to 4 cm/kyr, which may reflect the far-field influence of the India-Eurasia collision on Xining Basin.
WOS关键词ROCK-MAGNETIC RECORD ; MIDDLE EOCENE ; CLIMATIC OPTIMUM ; SOUTHWEST PACIFIC ; TECTONIC UPLIFT ; POLLEN RECORDS ; CARBON-ISOTOPE ; ARIDIFICATION ; STRATIGRAPHY ; SEDIMENTS
资助项目National Natural Science Foundation of China[41690114] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41430531]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000491283500004
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95721]  
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
地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Guo, Zhengtang
作者单位1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
3.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
6.Jahangirnagar Univ, Dept Geol Sci, Dhaka, Bangladesh
推荐引用方式
GB/T 7714		 Yang, Fan,Guo, Zhengtang,Zhang, Chunxia,et al. High-Resolution Eocene Magnetostratigraphy of the Xijigou Section: Implications for the Infilling Process of Xining Basin, Northeastern Tibetan Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019,124(8):7588-7603.
APA Yang, Fan,Guo, Zhengtang,Zhang, Chunxia,Md, Sayem Abu Sadat,He, Zhilin,&Deng, Chenglong.(2019).High-Resolution Eocene Magnetostratigraphy of the Xijigou Section: Implications for the Infilling Process of Xining Basin, Northeastern Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,124(8),7588-7603.
MLA Yang, Fan,et al."High-Resolution Eocene Magnetostratigraphy of the Xijigou Section: Implications for the Infilling Process of Xining Basin, Northeastern Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 124.8(2019):7588-7603.

入库方式： OAI收割

来源：地质与地球物理研究所

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