The Structural Features and Evolution Series of Madong Thrust Belt, West of Tarim Basin
详细信息
- 责任者：Li Haowu (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Wu Guanghui
- 刊名：Xinjiang Geology
- 出版年：2013
- 卷期：31(3)
- 关键词：油气藏形成 ; reservoir formation ; 上冲断层 ; upthrust ; 塔里木盆地 ; Tarim Basin
- 页码：p.180-185
- 图表：6 illus., 16 refs.
- 分类号：1003
- issnNo：ISSN1000-8845
- isbnNo：CN65-1092/P
摘要
Madong thrust belt is a trailing imbricate fan developed from NW to SE,the No.1,No.2 and No.3 fault were formed just before Sangtamu formation deposited.The No.4 and No.5 fault were formed after Sangtamu formation deposited.The south part of the thrust belt were in the karst slope of Hetian paleo uplift,the Ordovician karst reservoir most non filled.The No.1,No.2 and No.3 fault in south part were reactive in late Hercynian,which could formed many fracture-cave system.The salt of middle Cambrian in the south part were thinner than that in the north part of Madong thrust belt,and the Cambrian source rock’s peak oil generation window were just in late Hercynian,oil can migrated easier from source rock to the lower Ordovician formation by the reactive faults than by the non-reactive fault of north part,so there should more oil cumulated in weathered karst of Ordovician in the south part.In Madong thrust belt,capping by the salt of Middle Cambrian,only part of the hydrocarbon could migrated to upper formations,a considerable part of hydrocarbons were still in the Middle-Lower Cambrian,which have good exploration potential.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |