Evolution Characteristics of the Qiangtang Basin in the Mesozoic Era
详细信息
- 责任者：Nnan Zhengbing (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Zhang Yanling
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(3)
- 关键词：盆地演化 ; basin evolution ; 羌塘盆地 ; Qiangtang Basin
- 页码：p.534-540
- 图表：3 illus., 23 refs.
- 分类号：0300
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
Qiangtang Basin is located in the east of Thethys structural domain,in the middle-west part of the Qiangtang-Changdu crustal block,between the two suture zones of Kokoxili-Jiangshajiang and the Bangonghu-Nujiang.Its area is about 18×104km2 including central uplift belt.It′s the biggest Mesozoic marine residual basin in the Qinghai-Tibet Plateau,and has great exploration potential.There are different ideas about the location in Thethys structural domain in Mesozoic and the basin′s character.Based on comprehensive analysis,this study concludes that the basin is located in the south margin of the Laoya continent,and is a typical superimposed basin.It has undergone 5evolutionary phases,including foreland basin of north Qiangtang,rift of south Qiangtang,passive margin rift stage,passive margin depression stage and fade phase.
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