| 阿尔金构造带对塔东南油气地质条件的制约 |
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| 引用本文： | 罗金海,雷刚林,刘良,肖中尧,魏红兴,车自成.阿尔金构造带对塔东南油气地质条件的制约[J].大地构造与成矿学,2009,33(1). |
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| 作者姓名： | 罗金海 雷刚林 刘良 肖中尧 魏红兴 车自成 |
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| 作者单位： | 1. 大陆动力学国家重点实验室/西北大学地质学系,陕西,西安,710069
2. 中国石油塔里木油田分公司,新疆,库尔勒,841000 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 阿尔金构造带包括阿尔金碰撞造山带和阿尔金逆冲-走滑断裂系。阿尔金造山带是塔里木盆地周边已知的最古老的碰撞造山带,以高压-超高压变质作用为标志的峰期碰撞造山作用发生于晚寒武-早奥陶世,这次碰撞造山作用很可能引起相邻塔东南地区的大幅度隆升,导致塔东南地区的中-上奥陶统遭受剥蚀,并使塔东南地区在志留-二叠纪期间总体处于不利于沉积的地质环境,隆升作用也在一定程度上推迟了寒武-奥陶系烃源岩的生排烃时间。从中生代开始的阿尔金逆冲-走滑断裂系错移并改造了阿尔金碰撞造山带,并在阿尔金山和塔东南地区造成了一系列的侏罗纪沉积盆地,这些盆地中沉积了塔东南地区重要的烃源岩和储集岩。阿尔金断裂系的压扭特性容易在断裂两侧形成次生的构造圈闭,隐伏的车尔臣断裂两侧是这种次生构造圈闭发育的有利部位,它们应该是重要的油气勘探区域。柴达木盆地西部阿尔金斜坡带油气勘探的成功经验从侧面说明,塔东南地区的油气勘探应该加强寻找山前冲积扇-水下扇储集体内发育的油气藏,并且在地面油砂附近寻找残存的油气藏。
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| 关 键 词： | 阿尔金构造带 阿尔金碰撞造山带 阿尔金走滑断裂系 柴达木盆地西部阿尔金斜坡带 油气地质条件 |
The Controlling of Altyn Structural Belt on Petroleum Geology of the Southeastern Part of the Tarim Basin,NW China |
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| LUO Jinhai,LEI Ganglin,LIU Liang,XIAO Zhongyao,WEI Hongxing,CHE Zicheng.The Controlling of Altyn Structural Belt on Petroleum Geology of the Southeastern Part of the Tarim Basin,NW China[J].Geotectonica et Metallogenia,2009,33(1). |
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| Authors: | LUO Jinhai LEI Ganglin LIU Liang XIAO Zhongyao WEI Hongxing CHE Zicheng |
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| Institution: | 1.National Key Laboratory of Continental Dynamics/Department of Geology;Northwest University;Xi'an 710069;Shaanxi;China;2.Tarim Oilfield Company;PetroChina;Korla 841000;Xinjiang;China |
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| Abstract: | Altyn structural belt consists of collisional orogenic belt and thrusting strike-slip fault systems.Altyn orogenic belt is the oldest collisional orogenic belt around the Tarim basin so far.The peak-stage collisional orogeny characterized by the high-ultrahigh pressure metamorphism took place in the late Cambrian-early Ordovician.Such collisional orogeny likely resulted in uplifting obviously of the adjacent southeastern Tarim basin,and eroding of the Middle and Upper Ordovician strata.As a result,uplifting... |
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| Keywords: | Altyn structural belt Altyn collisional orogenic belt Altyn strike-slip fault system Altyn slope zone in the west of the Qaidam basin petroleum geology |
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