The Tectonic Evolution and Its Oil and Gas Prospect of Southeast Margin of Yangtze Block

详细信息   

• 责任者：Wang Jian (Chengdu Center ; China Geological Survey ; Chengdu 610081 ; China) ; Duan Taizhong
• 刊名：Geological Bulletin of China
• 出版年：2012
• 卷期：31(11)
• 关键词：大地构造 ; tectonics ; 油气资源 ; oil and gas resource ; 扬子板块 ; Yangtze Plate
• 页码：p.1739-1749
• 图表：5 illus., 56 refs.
• 分类号：0300,1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

摘要

From Cryogenian to Early Paleozoic, the southeastern margin of Yangtze Block had gone through three stages： 1）Nanhua rift stage （820~635 Ma）, an association of alluvial, fluvial, volcanic, deep turbidity current and glacial deposition developed in the main rifts；2）passive margin stage （Nh-Cambrian, 635~488 Ma）, a super-sequence, which was mainly composed of carbonate, and more than 3 000 m in thickness, formed in southeast margin basin; and 3）foreland basin evolution and Caledonian orogenic process, another super-sequence was developed, its lower part was composed of carbonate, but the upper mainly be dominated by terrigenous deposits. During the basin evolution, the southeast margin of Yangtze Block not only modified three sources rock suites, but also developed all kinds of reservoir. The west region of Xuefeng Mountain located in the neighboring area of Hunan, Hubei, Chongqing and Sichuan, therefore, had good condition of marine oil and gas, and would be a favorable region for the exploration of oil and gas（including shale gas）.