新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (4): 299-302.

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塔里木盆地构造-地层组合特征*

张守安, 李德茂, 韩萍, 夏遵义   

  1. 中国新星石油公司石油勘探开发规划研究院荆州院 湖北荆州 434100
  • 收稿日期:1997-11-27 出版日期:1998-08-01 发布日期:2020-09-19
  • 作者简介:张守安: 高级工程师 地层古生物及石油地质
  • 基金资助:
    * 国家“ 八五” 重点科技攻关项目85-101 研究成果

STRUCTURE-STRATIGRAPHY ASSEMBLAGE CHARACTERISTICS IN TARIM BASIN

Zhang Shouan, Li Demao, Han Ping, Xia Zunyi   

  1. Jinzhou Institute, Planning and Research Institute of Petroleum Exploration and Development, CXPC, Jinzhou, Hubei 434100
  • Received:1997-11-27 Online:1998-08-01 Published:2020-09-19
  • About author:Zhang Shouan, Senior Engineer, Palaeontology and Petroleum Geology

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摘要： 分析研究塔里木盆地构造-地层组合特征,对寻找塔里木盆地大油气田具有重要意义。根据该盆地构造、沉积发育特征, 将它划分为前震旦系基底构造-地层、震旦系—下二叠统海相克拉通盆地构造-地层、上二叠统—中、新生界前陆盆地构造-地层三大组合系统。前震旦纪基底性质南北有别, 南塔里木地块以前长城系的混合片麻岩、麻粒岩为基底, 而北塔里木地块则以中、上元古界的浅变质岩为基底。基底的南北差异造成盆地盖层中构造-地层组合的差异, 震旦纪—早二叠世为海相克拉通盆地发育期, 震旦纪发生板内裂陷形成库鲁克塔格—满加尔坳拉槽,早寒武世—奥陶纪和石炭纪是盆地两次大的海侵期, 沉积了富含烃类的碳酸盐岩建造;晚二叠世—中、新生代为前陆盆地发育期, 晚海西运动使南天山全面崛起形成库车前陆盆地, 中、新生代随着南天山褶皱冲断带的不断南移, 前陆盆地也不断向南推进、扩展,沉积了巨厚的含煤、含油建造。

关键词: 塔里木盆地, 构造, 地层, 组合, 沉积建造, 特征, 古生物

Abstract: Tarim basin is the biggest superimposed composite petroliferous one in inland China.According to the characteristics of structure and sedimentation of Tarim basin, it can be divided into three assemblages i.e.pre-Sinian basement structure-stratigraphy, Sinian-Lower Permian marine craton basin structure-stratigraphy, and Upper Permian-Middle Cenozoic foreland basin structure-stratigraphy.Pre-Sinian basement features are different in northern and southern Tarim basin.The former consists of slightly metamorphic rock of Middle-Upper Proterozoic, while the latter is composed of mixed gneiss and granulite of pre-Sinian.Such difference causes the difference in structure-stratigraphy assemblage in caprock.Sinian-Early Permian is developing period of marine craton basin.The plate rifted in Sinian to form Kuluketage-Maggar aulacogen.In Early Cambrian to Ordovician and Carboniferous, two major transgressions occurred and hydrocarbon-enriched carbonate formation deposited.Late Permian to Mesozoic and Cenozoic is developing period of foreland basin, late Hercynian movement made southern Tianshan Mts uplift entirely to form Kuqa foreland basin in which mega-thick coal-bearing clastic formation were formed.

Key words: Tarim basin, Structure, Formation, Assemblage, Characteristics, Petroliferous basin