| 塔里木盆地西部鸟山-古董山地区断裂构造分析 |
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| 引用本文： | 杨海军,李曰俊,曾昌民,冯晓军,陈才,张亮,文磊,张强,梁华,姜红,贾铁干.塔里木盆地西部鸟山-古董山地区断裂构造分析[J].地质科学,2015,0(4):1023-1043. |
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| 作者姓名： | 杨海军 李曰俊 曾昌民 冯晓军 陈才 张亮 文磊 张强 梁华 姜红 贾铁干 |
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| 作者单位： | 1. 中国石油塔里木油田分公司 新疆库尔勒 841000;
2. 中国科学院地质与地球物理研究所 北京 100029 |
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| 摘 要： | 鸟山-古董山地区位于塔里木盆地西部, 巴楚隆起与麦盖提斜坡之间, 鸟山、玛南、玛扎塔格、古董山和罗斯塔格构造带在此交汇, 附近还发育与之密切相关的沙陇断裂, 十分引人注目。鸟山-古董山地区的主干断裂形成于晚白垩世, 包括鸟山、罗斯塔格和玛扎塔格晚白垩世冲断构造带和玛南晚白垩世走滑断裂带, 玛南断裂是玛扎塔格构造带与鸟山和罗斯塔格构造带之间的调节断层。该期构造变形受控于南羌塘和拉萨地块与亚洲大陆之间的碰撞造山作用。鸟山-古董山地区的断裂构造于中新世末基本定型。因帕米尔突刺楔入于塔里木和卡拉库姆之间, 在塔西南地区形成一系列走滑断裂, 包括玛扎塔格-罗斯塔格中新世末走滑断裂, 古董山断裂是其派生断层。晚白垩世是研究区构造和圈闭的关键形成期, 上新世晚期-全新世早期以古近系底部膏盐层为主滑脱面的滑脱-冲断构造保护早期形成的圈闭和油气藏。鸟山和玛扎塔格构造带是研究区最有利的油气勘探区带, 玛南构造带是重要的油气运移通道。
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| 关 键 词： | 塔里木盆地西部 鸟山-古董山地区构造带 晚白垩世冲断层 中新世末走滑断裂 上新世晚期-全新世早期滑脱-冲断层 油气勘探 |
| 收稿时间： | 2014-08-10 |
| 修稿时间： | 2014-08-10; |
Niaoshan-Gudongshan structural joint in western Tarim Basin and its formation and evolution |
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| Yang Haijun,Li Yuejun,Zeng Changmin,Feng Xiaojun,Chen Cai,Zhang Liang,Wen Lei,Zhang Qiang,Liang Hua,Jiang Hong,Jia Tiegan.Niaoshan-Gudongshan structural joint in western Tarim Basin and its formation and evolution[J].Chinese Journal of Geology,2015,0(4):1023-1043. |
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| Authors: | Yang Haijun Li Yuejun Zeng Changmin Feng Xiaojun Chen Cai Zhang Liang Wen Lei Zhang Qiang Liang Hua Jiang Hong Jia Tiegan |
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| Institution: | 1. Tarim Oil-field Company, PetroChina, Korla, Xinjiang 841000;
2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Niaoshan-Gudongshan structural joint is located at the boundary between Bachu rise and Maigaiti slope, western Tarim Basin. It was formed by intersection of Niaoshan, Manan, Mazhatage, Gudongshan and Luositage structural belts. And it's also near the closely related Shalong fault. The embryonic form of Nioashan-Gudongshan structural joint formed in Late Cretaceous, including Niaoshan, Luositage, and Mazhatage Late Cretaceous thrust belt and Manan Late Cretaceous compressive strike-slip fault belt. Manan fault is the adjustment zone between Niaoshan, Luositage structural belts in the west and Mazhatage structural belt in the east. The Late Cretaceous of structural deformation was controlled by the collision orogeny between South Qiangtang accompanied by Lhasa block and Asian continent. Niaoshan-Gudongshan structural joint basically finalized the evolution at the end of Miocene. With the wedging of Pamir tongue between Tarim and Karakum, the compressional stress diverted to compression-shear, resulting in the formation of a series of strike-slip faults in southwestern Tarim, including Mazhatage-Luositage Late Miocene strike-slip faults and Gudongshan fault as its derived fault. Late Cretaceous was the key formation period of the structures and traps in the studied area. The decollement-thrust structure with the bottom Paleogene salt layer as main decollement surfaces, formed in Late Pliocene to Early Holocene, protects the early traps and reservoirs. Niaoshan and Mazhatage tectonic belts are the most favorable oil and gas exploration zones in study area. Manan tectonic belt is an important oil and gas migration channel. |
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| Keywords: | Western Tarim Basin Niaoshan-Gudongshan structural joint Late Cretaceous thrust fault Late Miocene strike-slip faults Late Pliocene to Early Holocene decollement-thrust structure Oil and gas exploration |
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