| 基于钻探的芦花台隐伏断层晚第四纪活动特征 |
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| 引用本文： | 雷启云,柴炽章,杜鹏,王银,孟广魁.基于钻探的芦花台隐伏断层晚第四纪活动特征[J].中国地震研究,2012,26(2):168-180. |
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| 作者姓名： | 雷启云 柴炽章 杜鹏 王银 孟广魁 |
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| 作者单位： | 1) Institute of Geology，China Earthquake Administration，Beijing 100029，China;2) Earthquake Administration of Ningxia Hui Autonomous Region，Yinchuan 750001，China;2) Earthquake Administration of Ningxia Hui Autonomous Region，Yinchuan 750001，China;2) Earthquake Administration of Ningxia Hui Autonomous Region，Yinchuan 750001，China;2) Earthquake Administration of Ningxia Hui Autonomous Region，Yinchuan 750001，China |
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| 基金项目： | This research was funded by the Special R＆D Fund for Earthquake Study，China (201008003) ． |
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| 摘 要： | The Luhuatai fault is one of the important buried tectonics in the Yinchuan basin. Based on the results of shallow seismic exploration, we conducted composite drilling section exploration and dating of the samples from boreholes. Some useful data was obtained, such as the depth of the upper breaking point, the latest activity age, displacement in the late Quaternary, and slip rates, etc. This study shows that the activity is different between the north and south segment along the Luhuatai fault. The north segment is a Holocene fault, while the south segment is a late mid-Pleistocene fault. From north to south along the north segment of Luhuatai fault, the activity has been enhanced, and the faulting is stronger in late Pleistocene than Holocene.
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| 关 键 词： | Buried active fault Composite drilling section Key horizon Slip rate |
| 收稿时间： | 2011/3/14 0:00:00 |
| 修稿时间： | 2011/4/25 0:00:00 |
Characteristics of Late Quaternary Activity of the Luhuatai Buried Fault Revealed by Drilling |
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| Lei Qiyun,Chai Chizhang,Du Peng,Wang Yin and Meng Guangkui.Characteristics of Late Quaternary Activity of the Luhuatai Buried Fault Revealed by Drilling[J].Earthquake Research in China,2012,26(2):168-180. |
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| Authors: | Lei Qiyun Chai Chizhang Du Peng Wang Yin and Meng Guangkui |
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| Institution: | Lei Qiyun1,2), Chai Chizhang2), Du Peng2), Wang Yin2), and Meng Guangkui2) 1) Institute of Geology, China Earthquake Administration, Beijing 100029, China 2) Earthquake Administration of Ningxia Hui Autonomous Region, Yinchuan 750001, China |
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| Abstract: | The Luhuatai fault is one of the important buried tectonics in the Yinchuan basin. Based on the results of shallow seismic exploration, we conducted composite drilling section exploration and dating of the samples from boreholes. Some useful data was obtained, such as the depth of the upper breaking point, the latest activity age, displacement in the late Quaternary, and slip rates, etc. This study shows that the activity is different between the north and south segment along the Luhuatai fault. The north segment is a Holocene fault, while the south segment is a late mid-Pleistocene fault. From north to south along the north segment of Luhuatai fault, the activity has been enhanced, and the faulting is stronger in late Pleistocene than Holocene. |
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| Keywords: | Buried active fault Composite drilling section Key horizon Slip rate |
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