| Pull-apart Basins and the Total Lateral Displacement Along the Haiyuan Fault Zone in Cenozoic |
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| 作者姓名： | Tian Qinjian Ding Guoyu Shen Xuhui |
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| 作者单位： | Tian Qinjian，Ding Guoyu，and Shen XuhuiCenter for Analysis and Prediction，China Seismological Bureau，Beijing 100036，China |
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| 基金项目： | theNationalScienceFoundation (47932 0 95 )andtheNationalEmphasesProgrammingonBasicScience“PredictionandMechanicofStrongEarthquakesinContinent” (95 130 10 2 ) ,China |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｄｅｂａｔｅｄａｂｏｕｔｔｈｅｔｏｔａｌｌａｔｅｒａｌｄｉｓｐｌａｃｅｍｅｎｔａｌｏｎｇｔｈｅｍａｉｎｂｏｕｎｄａｒｙｆａｕｌｔｓｏｆｉｎｔｒａｐｌａｔｅｂｌｏｃｋｓｉｎｅａｓｔｅｒｎＡｓｉａｃｏｎｔｉｎｅｎｔｉｎＣｅｎｏｚｏｉｃｅｒａ .Ｉｎｔｈｅ 1 970ｓｏｆ2 0ｔｈｃｅｎｔｕｒｙ ,ｓｏｍｅｓｃｉｅｎｔｉｓｔｓｈａｄｅｓ ｔｉｍａｔｅｄｌａｔｅｒａｌｄｉｓｐｌａｃｅｍｅｎｔｂａｓｅｄｏｎｇｅｏｍｏｒｐｈｉｃｄａｔａ .Ｔｈｅｙｐｒｏｐｏｓｅｄｔｈａｔｔｈｅｔｏｔａｌｄ…
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Pull-apart Basins and the Total Lateral Displacement Along the Haiyuan Fault Zone in Cenozoic |
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| Tian Qinjian,Ding Guoyu,Shen Xuhui.Pull-apart Basins and the Total Lateral Displacement Along the Haiyuan Fault Zone in Cenozoic[J].Earthquake Research in China,2001,15(4):390-398. |
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| Authors: | Tian Qinjian Ding Guoyu and Shen Xuhui |
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| Affiliation: | Center for Analysis and Prediction, China Seismological Bureau, Beijing 100036, China Center for Analysis and Prediction, China Seismological Bureau, Beijing 100036, China Center for Analysis and Prediction, China Seismological Bureau, Beijing 100036, China |
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| Abstract: | Pull-apart basins of three scales were found along the Haiyuan fault zone. The largest one is more than 50km long, named Laolongwan basin developed in Miocene. A model was built to calculate the amount of pull-apart of an extensional basin. Parameters used in calculation in clude thickness and length of deposition and depth of detachment. The results of calculation show that the amount of pull-apart of the Laolongwan Basin is about 30 km. Based on previous studies and calculating by using the average slip rate method, amount of pull-apart of the other two smaller basins are 22 km and 8 km, respectively. Thus, the total displacement of strike slip along the Haiynan fault zone is about 60 kin, which is close to the offset of the Yellow Riv er from Jingtai to Jingynan. |
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| Keywords: | Lateral displacement Pull-apart basin Haiyuan fault zone |
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