| 塔里木盆地西南坳陷周边山前的典型构造模式建立 |
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| 引用本文： | 姚卫江,陈文利,肖燕,王晓.塔里木盆地西南坳陷周边山前的典型构造模式建立[J].新疆地质,2002,20(Z1):47-50. |
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| 作者姓名： | 姚卫江 陈文利 肖燕 王晓 |
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| 作者单位： | 中国石油新疆油田分公司勘探开发研究院地球物探研究所,新疆,乌鲁木齐,830011 |
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| 基金项目： | 国家95重点科技攻关项目(961110310)资助 |
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| 摘 要： | 塔里木盆地西南坳陷夹持于西昆仑与南天山褶皱带间,边界受大型逆冲推覆断裂带和走滑断裂带控制.塔西南坳陷经历了多期构造运动,其中以喜山期构造运动最为重要,地震资料反映的多层次滑脱主要为喜山期构造运动结果,其现今构造格局是逆冲推覆、滑脱、走滑共同作用的结果.塔西南坳陷构造变形复杂,尤其在其周边表现得更为明显.
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| 关 键 词： | 塔里木盆地 坳陷 构造模式 建立 |
| 文章编号： | 1000-8845(2002)增刊-047-04 |
| 修稿时间： | 2002年7月17日 |
ESTABLISHMENT OF TYPICAL STRUCTURAL MODELS FOR PIEDMONT AREAS SURROUNDING SOUTHWESTERN TARIM DEPRESSION |
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| YAO Wei-jiang,CHEN Wen-li,XIAO Yan,WANG Xiao.ESTABLISHMENT OF TYPICAL STRUCTURAL MODELS FOR PIEDMONT AREAS SURROUNDING SOUTHWESTERN TARIM DEPRESSION[J].Xinjiang Geology,2002,20(Z1):47-50. |
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| Authors: | YAO Wei-jiang CHEN Wen-li XIAO Yan WANG Xiao |
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| Abstract: | The present structural framework in southwestern Tarim depression (SWTD) is a combination of thrust-nappe, decollement and strike-slip structures. New understandings are acquired on structural models of SWTD and surrounding foreland areas based on new seismic data and former references. A typical structural model is put forward for the area west of Pamir piedmont nappe structure zone. It is regarded that Tiekelik large nappe structure is composed of, from north to south, and from lower to upper, Hotan nappe, Pi-Aman nappe and Tiekelik nappe. This large structure mainly formed during the end of Pliocene to Pleistocene, and is still active. The research shows that Qimugen rise lies between Kashi depression and Yecheng-Hotan depression, as a nose dipping toward NE. This nose is further divided into three segments, including Yigeziya-Ganjiate nappe, frontal nappe zone and Qimugen nose. Kepintag nappe-uplift zone is thought to be the present boundary of SWTD. |
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| Keywords: | southwestern Tarim depression typical foreland structure zone structural model |
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