石油与天然气地质 ›› 2014, Vol. 35 ›› Issue (1): 116-123.doi: 10.11743/ogg20140114

• 盆地构造 • 上一篇    下一篇

塔里木盆地巴楚隆起古董山断裂带构造特征及活动时代

杨勇1,2, 汤良杰1,2, 岳淑娟3, 黄太柱4, 云露4, 谢大庆4   

  1. 1. 中国石油大学 油气资源与探测国家重点实验室, 北京 102249;
    2. 中国石油大学 盆地与油藏研究中心, 北京 102249;
    3. 中国石化 中原油田分公司 采油工程技术研究院, 河南 濮阳 457001;
    4. 中国石化 西北油田分公司, 新疆 乌鲁木齐 830011
  • 收稿日期:2012-10-12 修回日期:2013-12-24 出版日期:2014-02-08 发布日期:2014-03-26
  • 作者简介:杨勇(1986—),男,博士,构造地质学。E-mail:yy349971854@163.com。
  • 基金资助:
    国家自然科学基金项目(41172125,40972090);国家重点基础研究发展规划(“973”计划)项目(2012CB214804,2005CB422107);全国油气资源战略选区调查与评价国家专项(第二批)(2009GYXQ02-05);中国石油化工股份有限公司项目(P11086);教育部博士点基金项目(200804250001);国家科技重大专项(2011ZX05002-003-001);中国石化西北油田分公司项目(KY2010-S-053)。

Structural characteristics and active ages of the Gudongshan fault belt in Bachu uplift, Tarim Basin

Yang Yong1,2, Tang Liangjie1,2, Yue Shujuan3, Huang Taizhu4, Yun Lu4, Xie Daqing4   

  1. 1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;
    2. Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China;
    3. Research Institute of Production Technology, Zhongyuan Oilfield Company, SINOPEC, Puyang, Henan 457001, China;
    4. Northwest Oilfield Company, SINOPEC, Urumqi, Xinjiang 830011, China
  • Received:2012-10-12 Revised:2013-12-24 Online:2014-02-08 Published:2014-03-26

摘要: 根据二维地震资料解释成果,利用构造解析方法建立了塔里木盆地古董山断裂带的几何学模型,确定了断裂主要活动时代。古董山断裂带构造变形复杂,其形成演化过程与塔里木盆地周缘洋盆和造山带的演化密切相关,在加里东中期、海西早期、海西中期、喜马拉雅早期和晚期等关键变革期均发生了明显的断裂活动。古董山1号和2号断层控制断裂带两侧古生代地层的厚度变化,具有多期活动特征。古董山1号断层活动时间是加里东中期Ⅰ幕和Ⅲ幕,并具有持续增强的特征。古董山2号断层形成于海西早期,之后在石炭纪、古近纪末分别经历了负反转、正反转的过程。古董山3号控制了断裂带两侧前寒武系基底南西高北东低的构造格局,形成于喜马拉雅早期。古董山4号和5号断层形成于喜马拉雅晚期,其中古董山4号断层的逆冲推覆距离达20 km,强烈的剥蚀作用导致其上盘残留地层表现为一个单斜的构造形态。

关键词: 多期断裂活动, 构造特征, 构造反转, 断裂带, 巴楚隆起

Abstract: 2-D seismic data interpretation combined with structural analysis was used to build a geometry model and determine active ages of the Gudongshan fault belt.The formation and evolution of this fault belt with complicated tectonic deformation may be closely related to the evolution of oceanic basins and orogenic belts around Tarim Basin.Faulting activities were the most obvious in key tectonic periods of Tarim Basin,namely the Middle Caledonian,Early Hercynian,Middle Hercynian,Early Himalayan and Later Himalayan.Faults No.1 and No.2 in the Gudongshan fault belt control the thickness of the Palaeozoic strata on both sides of the belt and also show signs of multiple-stage activities.Fault No.1 was active during phase Ⅰ and Ⅲ of the Middle Caledonian and shows feature of progress intensification of its activity.Fault No.2 was developed in the Early Hercynian and successively experienced negative inversion in the Carboniferous and positive inversion at the end of Paleogene.Fault No.3 was formed in the Early Himalayan and controlled the tectonic framework of the Precambrian basement which is higher in southwest and lower in northeast.Faults No.4 and No.5 were developed in the Later Himalayan.The former has a thrust displacement up to 20 km and a denudation-caused monocline at the hanging wall.

Key words: multiple-stage faulting, structural characteristics, structure inversion, fault belt, Bachu uplift

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