| 塔里木盆地巴楚隆起北缘的吐木休克断裂与巴东断裂 |
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| 引用本文： | 周,慧,陈永权,李洪辉,李保华,黄理力,刘亚雷,龚洪林,文,磊.塔里木盆地巴楚隆起北缘的吐木休克断裂与巴东断裂[J].地质科学,2021,56(1):1-018. |
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| 作者姓名： | 周 慧 陈永权 李洪辉 李保华 黄理力 刘亚雷 龚洪林 文 磊 |
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| 作者单位： | 中国石油勘探开发研究院 北京 100083;中国石油塔里木油田公司 新疆库尔勒 841000;中国地质调查局油气资源调查中心 北京 100083 |
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| 基金项目： | 国家科技重大专项“大气田富集规律与勘探关键技术”(编号:2016ZX05007‐002)资助。 |
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| 摘 要： | 吐木休克断裂位于塔里木盆地西部,巴楚隆起和阿瓦提凹陷之间,是一条大型基底卷入型冲断构造。走向NW‐SE,呈弧形向NEE凸出;倾向巴楚隆起。根据构造变形特征,断裂自NW向SE可以划分为4段。Ⅰ和Ⅲ段为简单基底卷入型冲断构造段;Ⅱ段发育背冲断层,与主干断层呈“y”字型剖面组合关系;Ⅳ段为基底卷入型楔状构造,主冲断层顶部出现一条向巴楚隆起逆冲的反冲断层。断裂上盘发育背斜,下盘有明显的“牵引构造”,显示吐木休克断裂可能是由吐木休克背斜北翼突破形成的,是一条褶皱相关断层。吐木休克断裂形成于中新世晚期至上新世初,持续演化至第四纪。断裂带上发育的上新世末—第四纪初正断层代表印度—亚洲碰撞脉动式远程效应的一个构造间歇期。吐木休克断裂东侧的巴东断裂是巴楚隆起与塔中隆起的过渡构造带,雏形形成于奥陶纪晚期—志留纪,晚新生代复活。
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| 关 键 词： | 吐木休克断裂 巴东断裂 塔里木盆地西部 冲断楔 晚新生代 印度—亚洲碰撞远程效应 |
| 收稿时间： | 2020-08-20 |
The Tumuxiuke and Badong faults on the northern boundary of the Bachu Rise,Tarim Basin |
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| Zhou Hui Chen Yongquan Li Honghui Li Baohua Huang Lili Liu Yalei Gong Honglin Wen Lei.The Tumuxiuke and Badong faults on the northern boundary of the Bachu Rise,Tarim Basin[J].Chinese Journal of Geology,2021,56(1):1-018. |
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| Authors: | Zhou Hui Chen Yongquan Li Honghui Li Baohua Huang Lili Liu Yalei Gong Honglin Wen Lei |
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| Institution: | Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083;Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000;Oil & Gas Survey, China Geological Survey, Beijing 100083 |
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| Abstract: | The Tumuxiuke fault located between the Bachu Rise and Awati Sag, is a large basement-involved thrust in the western Tarim Basin. It extends in arc-shape protruding to the Awati Sag, and dips to the Bachu Rise. According to the deformation charateristics, the fault can be divided into 4 segments. From NW to SE, the Ⅰ and Ⅲ segments are simple basement-involed thrusts. The Ⅱ segment has a back thrust. The main thrust and back thrust combine into a “y” shape structure in profile. The Ⅳ segment is a basement-involved thrust wedge. There is a back thrust on the top of the main thrust. The Tumuxiuke anticline appear on the hanging wall of the Tumuxiuke fault, and a “draging structure” at the foot wall. The fault maybe a fold-related fault formed from the break of the northern wing of the anticline. The Tumuxiuke fault was formed in Late Miocene-beginning Pliocene, and lasted to Quaternary. The end Pliocene-beginning Quaternary normal faults on the fault belt represent a tectonic pause of the far-field effect of the India-Asia collision. The Badong fault east of the Tumuxiuke is a transfer zone between the Bachu and Tazhong Rise. It was formed in Late Ordovician-Silurian, and revived in Late Cenozoic. |
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| Keywords: | Tumuxiuke fault Badong fault Bachu Rise Western Tarim Basin Basement‐involved thrust Back thrust Thrust wedge Far‐field effect of the India‐Asia collision |
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