酒泉盆地南缘山前冲断带构造变形特征研究

英文篇名：Research on structural deformation characters of Foreland thrust belt in south margin of Jiuquan Basin
中文刊名：中国科技信息
英文刊名：China Science and Technology Information
作者：沈燕飞 ; 罗万全 ; 邓华李
英文作者：Shen Yanfei Luo Wanquan Deng Huali YunNan HuaXi Mineral Resource Co. ; LTD.KunMing ; YunNan province ; 650214
中文关键词：酒泉盆地 ; 山前冲断带 ; 逆冲推覆带 ; 构造变形特征
英文关键词：Jiuquan Basin ; Foreland thrust belt ; Thrust-nappe belt ; Structural deformation characters
出版日期：2010-08-01
机构：云南华西矿产资源有限公司;
年：2010
期：15
出版单位：中国科技信息

摘要

酒泉盆地南缘山前冲断带呈北西西走向,西界止于阿尔金走滑断层,东至榆木山。综合地震、非地震及地面露头资料研究成果,酒泉盆地南缘山前冲断带具有以下特征:是由多个逆冲推履带侧向叠置而成;每个逆冲推履带由于逆冲推覆位于量的差异产生横向调节断层;由于调节断层的分割,构造变形及结构东西方向具有分段的特征;构造变形强度总体表现为西强东弱。
Foreland thrust belt in south margin of Jiuquan Basin is assuming NNW direction,in the west it arrives at Altyn Tagh strike-slip fault,and in the east it ends at Yumushan mountain.Synthesize with the seismic,non-seismic data and outcrop,the structural deformation of foreland thrust belt in south margin of Jiuquan Basin have the following characters: it had experienced two deformations,extension in Mesozoic and compression in Cenozoic;the multiple thrust belts superposed laterally;deformation on the plane are characterized by zonation from west to east because of division of the NNE transfer faults,and the strength of structural deformation is strong in west and weak in east.

引文

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