塔里木盆地西部中、新生代5次构造事件及其石油地质学意义  

Mesozoic-Cenozoic five tectonic events and their petroleum geologic significances in west Tarim Basin

作　　者：罗金海[1] 周新源[2] 邱斌[2] 尹宏[2] 李建立[2] 

机构地区：[1]西北大学大陆动力学教育部重点实验室 [2]中国石油塔里木油田勘探开发研究院

出　　处：《石油勘探与开发》2005年第1期18-22,共5页Petroleum Exploration and Development

摘　　要：在系统归纳总结塔里木盆地西部、西昆仑、中亚天山和帕米尔等地区的构造、地层、古地磁学、地球化学及含油气盆地等最新研究成果的基础上,分析自中生代以来对塔里木盆地西部影响重大的5次构造事件的构造特征、起因和石油地质学意义。这5次构造事件是:①早二叠世末南天山洋西段的闭合与中生代初塔里木盆地西部的抬升事件;②侏罗纪塔拉斯-费尔干纳断裂的活动与早、中侏罗世库孜贡苏走滑拉分盆地的形成;③白垩纪-古近纪区域拗陷作用与海侵事件;④早白垩世和古近纪乌恰县托云及中亚天山的玄武质火山活动;⑤新近纪-第四纪帕米尔弧的形成与南北向区域性挤压作用。它们对塔里木盆地西部的油气成藏具有不同的石油地质学意义,正确认识这些构造事件的发生时间、构造效应和对油气成藏的影响,对塔里木盆地西部的油气勘探具有重要的理论指导意义。The new achievements about the strata, structure, paleomagnetism, geochemistry and oil-gas-bearing basins of the west Tarim Basin, west Kunlun Mountains, Middle Asia Tianshan and Pamir orogens suggest that structural features, origins and their petroleum geologic significances of the five fateful events play an important role in the west Tarim Basin since Mesozoic. The five events could be identified as: (1) evolution closing of the west segment of the south Tianshan (or Turkestan) ocean in the end of Early Permian and exhumation of the west part of the Tarim Basin in the early Mesozoic; (2) Jurassic strike-slipping of the Talas-Ferghana fault and the formation of the Early-Middle Jurassic Kuzigongsu pull-apart basin; (3) Cretaceous-Paleogene regional descension and ingression; (4) the formation of the Pamir arc during Neogene-Quaternary and S-N regional compression; (5) Early Cretaceous and Paleogene basaltic volcanisms in the Tuoyun and the Middle Asia Tianshan. All of the five events have important significances for the exploration of the west parts of the Tarim Basin.

关 键 词：塔里木盆地 西部 中、新生代 构造事件 石油地质 

分 类 号：P54[天文地球—构造地质学]