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Quaternary Activity Characteristics and regional tectonic Significance of the Jiulong Fault in Jiujiang,Jiangxi Province,China

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Journal of Earth Science 2024年第4期35卷 1107-1117页

作者： Xin Qi Yuyong Jiao Qinghua Li Bin Li Faculty of Engineering China University of GeosciencesWuhan430074China Wuhan Center China Geological SurveyWuhan430205China Institute of Geological Survey China University of GeosciencesWuhan430074China

Obtaining geological and landform dislocation features,as well as the measured stratigraphic activity age,provides direct evidence to evaluate fault activity,which is more difficult to do in areas with low tectonic activity,such as eastern and central China.A detailed investigation of the fault activity,trenching,drilling joint geological profile,geological survey,and chronological analysis were used to obtain the spatial geometry,fault kinematics,and activity chronology of the Jiulong *** conclusions are as follows:(1)The Jiulong fault was a fracture zone composed of four branch faults,with a width of around 30–40 m and good extendibility,while the maximum surface rupture length was 373 m.(2)The Jiulong fault has many strata dislocations,and the dislocation distance decreased from bottom to top,demonstrating synsedimentary structure characteristics,with a maximum stratigraphic dislocation distance of 18.2 m.(3)Preliminary analysis suggested the Jiulong fault as a secondary fracture of the Xiangfan-Guangji fault zone and provided evidence of the southeastward extension of the Xiangfan-Guangji fault.A preliminary hypothesis purported the Xiangfan-Guangji fault as the seismogenic fault of the Ms 5.0 magnitude earthquake in 1911.(4)According to OSL and ESR dating analyses,the upper breakpoint of the Jiulong fault cuts into the Late Pleistocene Xingang Formation(Qp3x)strata,and the latest active age of the Jiulong fault was 57.6 *** chronology analysis confirmed an active fault from the Late Pleistocene and identified a weak tectonic in Jiujiang Province,which represents the largest active fault outcrop uncovered in the area so *** study provides evidence and research materials for the evaluation of fault activity and seismic stability in this region.

关键词： active fault regional tectonic earthquakes seismic intensity tectonics

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MESOZOIC PETROLEUM SUPERSYSTEM IN NORTH CHINA

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石油勘探与开发 1996年第6期23卷 85-92页

作者： Niu Jiayu Li Jinchao Xue Liangqing(Research Institute of Petroleum Exploration and Development, CNPC, Beijing, 100083, China)

ＭＥＳＯＺＯＩＣ　ＰＥＴＲＯＬＥＵＭ　ＳＵＰＥＲＳＹＳＴＥＭ　ＩＮ　ＮＯＲＴＨ　ＣＨＩＮＡＭＥＳＯＺＯＩＣＰＥＴＲＯＬＥＵＭＳＵＰＥＲＳＹＳＴＥＭＩＮＮＯＲＴＨＣＨＩＮＡ￥ＮｉｕＪｉａｙｕ；ＬｉＪｉｎｃｈａｏ；Ｘｕｅ... 详细信息

ＭＥＳＯＺＯＩＣ　ＰＥＴＲＯＬＥＵＭ　ＳＵＰＥＲＳＹＳＴＥＭ　ＩＮ　ＮＯＲＴＨ　ＣＨＩＮＡＭＥＳＯＺＯＩＣＰＥＴＲＯＬＥＵＭＳＵＰＥＲＳＹＳＴＥＭＩＮＮＯＲＴＨＣＨＩＮＡ￥ＮｉｕＪｉａｙｕ；ＬｉＪｉｎｃｈａｏ；ＸｕｅＬｉａｎｇｑｉｎｇ（Ｒｅｓｅａｒｃ...

关键词： Mesozoic era Oil resource Oil and gas exploration regional tectonic Palaeoclimate North China Petroleum supersystem

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