Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia
ABSTRACT: The largest Tan-Lu active fault system in northeastern Asia, spans approximately 3500 km in length and varies in width from 10 km to 200 km. In 1668, an earthquake with a magnitude of 8.5 occurred in Tancheng, causing the loss of over 50000 lives. To constrain the timing and process of the...
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KeAi Communications Co., Ltd.
2025-04-01
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| Series: | China Geology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096519225000680 |
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| author | Liang Qiu Yu Fu Dan-Ping Yan Tian-heng Wang Wei Gan Cheng-ming Li Ruo-yan Kong Rong Chu Xiao-yu Chen Rui Zhang Shou-heng Sun Xiao-yu Dong |
| author_facet | Liang Qiu Yu Fu Dan-Ping Yan Tian-heng Wang Wei Gan Cheng-ming Li Ruo-yan Kong Rong Chu Xiao-yu Chen Rui Zhang Shou-heng Sun Xiao-yu Dong |
| author_sort | Liang Qiu |
| collection | DOAJ |
| description | ABSTRACT: The largest Tan-Lu active fault system in northeastern Asia, spans approximately 3500 km in length and varies in width from 10 km to 200 km. In 1668, an earthquake with a magnitude of 8.5 occurred in Tancheng, causing the loss of over 50000 lives. To constrain the timing and process of the Tan-Lu fault system on eastern Asian margin, this study presents the field mapping, thin section observation, geochronology, and microanalysis of Weiyuanpu-Yehe ductile shear zone (WYSZ) of the northern Tan-Lu fault system. Kinematic indicators and microstructures suggest a sense of sinistral strike-slip. The deformation temperature of the mylonite is mediate to high based on the quartz deformation, c-axis fabrics. The differential stress of the shear zone is 20‒40 MPa using quartz paleopiezometry. The dikes within the shear zone yielded zircon U-Pb ages of 165‒163 Ma. However, due to the ambiguous geological relationship between the dikes and shear zone, additional geochronology is warranted. Since the Mesozoic era, based on the exposure of mylonite and dikes, the upper crust has been extensively eroded, exposing the ductile shear zone. Moreover, the understanding of the geometry and process of pre-existing structures has fundamental implications for predicating the potential earthquakes for the Tan-Lu fault system. |
| format | Article |
| id | doaj-art-3203f06b8a544028a5547df2c4a127c4 |
| institution | DOAJ |
| issn | 2589-9430 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | China Geology |
| spelling | doaj-art-3203f06b8a544028a5547df2c4a127c42025-08-20T03:15:06ZengKeAi Communications Co., Ltd.China Geology2589-94302025-04-018226528010.31035/cg20230060Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast AsiaLiang Qiu0Yu Fu1Dan-Ping Yan2Tian-heng Wang3Wei Gan4Cheng-ming Li5Ruo-yan Kong6Rong Chu7Xiao-yu Chen8Rui Zhang9Shou-heng Sun10Xiao-yu Dong11State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; Corresponding authorState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; Sinopec Jiangsu Oilfield, Yangzhou 225009, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; Corresponding authorState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; Sinoprobe Center, Chinese Academy of Geological Sciences, Beijing 100037, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; Jiangxi Geological Survey and Exploration Institute, Nanchang 330000, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; Nuclear Industry Team 243, Chifeng, Inner Mongolia 024000, ChinaABSTRACT: The largest Tan-Lu active fault system in northeastern Asia, spans approximately 3500 km in length and varies in width from 10 km to 200 km. In 1668, an earthquake with a magnitude of 8.5 occurred in Tancheng, causing the loss of over 50000 lives. To constrain the timing and process of the Tan-Lu fault system on eastern Asian margin, this study presents the field mapping, thin section observation, geochronology, and microanalysis of Weiyuanpu-Yehe ductile shear zone (WYSZ) of the northern Tan-Lu fault system. Kinematic indicators and microstructures suggest a sense of sinistral strike-slip. The deformation temperature of the mylonite is mediate to high based on the quartz deformation, c-axis fabrics. The differential stress of the shear zone is 20‒40 MPa using quartz paleopiezometry. The dikes within the shear zone yielded zircon U-Pb ages of 165‒163 Ma. However, due to the ambiguous geological relationship between the dikes and shear zone, additional geochronology is warranted. Since the Mesozoic era, based on the exposure of mylonite and dikes, the upper crust has been extensively eroded, exposing the ductile shear zone. Moreover, the understanding of the geometry and process of pre-existing structures has fundamental implications for predicating the potential earthquakes for the Tan-Lu fault system.http://www.sciencedirect.com/science/article/pii/S2096519225000680Tan-Lu fault systemDuctile shear zoneDeformation temperaturePaleopiezometryActive faultMajor earthquake |
| spellingShingle | Liang Qiu Yu Fu Dan-Ping Yan Tian-heng Wang Wei Gan Cheng-ming Li Ruo-yan Kong Rong Chu Xiao-yu Chen Rui Zhang Shou-heng Sun Xiao-yu Dong Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia China Geology Tan-Lu fault system Ductile shear zone Deformation temperature Paleopiezometry Active fault Major earthquake |
| title | Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia |
| title_full | Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia |
| title_fullStr | Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia |
| title_full_unstemmed | Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia |
| title_short | Timing, geometry, and kinematics of the Yilan-Yitong fault zone in the Northern Tan-Lu fault system of Northeast Asia |
| title_sort | timing geometry and kinematics of the yilan yitong fault zone in the northern tan lu fault system of northeast asia |
| topic | Tan-Lu fault system Ductile shear zone Deformation temperature Paleopiezometry Active fault Major earthquake |
| url | http://www.sciencedirect.com/science/article/pii/S2096519225000680 |
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