Late Miocene paleo-seismic events and tectonic responses of the western Qinling Mountains recorded in aeolian deposits
文献类型：期刊论文
| 作者 | Chen, Long2,3; Guo, Zhengtang2,3; Zhou, Xin1; Ge, Junyi3,4; Chen, Chaoqin2,3; He, Zhilin2 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 68期号:5页码:1599-1611 |
| 关键词 | Paleo-seismic events Late Miocene Aeolian deposit Western Qinling Mountains Tectonism Northeastern Tibetan Plateau |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-024-1559-8 |
| 通讯作者 | Guo, Zhengtang(ztguo@mail.iggcas.ac.cn) |
| 英文摘要 | Seismogenic structures and sequences preserved in sediments are important archives of paleo-seismic events and regional tectonism. However, investigations of such features have been limited in pre-Quaternary aeolian deposits. Here sedimentological analysis of the 8.3-7.0 Ma interval in Neogene aeolian deposits in the Xihe Basin, western Qinling Mountains, identified multiple layers characterized by abrupt inputs of sandy gravels. These gravel clasts were derived from bedrock in piedmont zones and exhibit subaerial depositional features without significant involvement of flowing water, suggesting earthquake-triggered collapse and landslide due to active tectonism. At least eight paleo-seismic events were identified in the section, which can be clustered into six seismic episodes that occurred predominantly in two stages (8.3-8.0 and 7.6-7.0 Ma). This paleo-seismic record indicates that the western Qinling Mountains experienced a tectonically active phase during 8.3-7.0 Ma in response to the expansion and uplift of the northeastern Tibetan Plateau, which occurred in a two-stage, multiepisode deformation process. The well-preserved aeolian sequences with minimal erosion and deformation imply that there were no significant changes in topography due to uplift in the western Qinling Mountains during this period. Our findings highlight the significance of aeolian deposits in reconstructing paleo-seismic activities and deciphering intricate regional tectonism. |
| WOS关键词 | SEISMOGENIC MECHANISM ; ACTIVE TECTONICS ; TIBETAN PLATEAU ; FAULT ; EARTHQUAKE ; CHINA ; DEFORMATION ; EXHUMATION ; SEQUENCE ; BASIN |
| 资助项目 | National Natural Science Foundation of China[42488201] ; Second Tibetan Plateau Scientific Expedition and Research Program[2024QZKK0301] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001473718300001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program |
| 源URL | [http://119.78.100.205/handle/311034/24753]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Guo, Zhengtang |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher & Environm Coevolut, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Long,Guo, Zhengtang,Zhou, Xin,et al. Late Miocene paleo-seismic events and tectonic responses of the western Qinling Mountains recorded in aeolian deposits[J]. SCIENCE CHINA-EARTH SCIENCES,2025,68(5):1599-1611. |
| APA | Chen, Long,Guo, Zhengtang,Zhou, Xin,Ge, Junyi,Chen, Chaoqin,&He, Zhilin.(2025).Late Miocene paleo-seismic events and tectonic responses of the western Qinling Mountains recorded in aeolian deposits.SCIENCE CHINA-EARTH SCIENCES,68(5),1599-1611. |
| MLA | Chen, Long,et al."Late Miocene paleo-seismic events and tectonic responses of the western Qinling Mountains recorded in aeolian deposits".SCIENCE CHINA-EARTH SCIENCES 68.5(2025):1599-1611. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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