Study on Basement Structural Characteristics of Lishu Fault Depression in Songliao Basin, China
详细信息
- 责任者：Xu Hongjie (The Northeast Oil & Gas Breach Company ; SINOPEC ; Changchun 130062 ; China) ; Wen Shengfu
- 刊名：Journal of Chengdu University of Technology
- 出版年：2013
- 卷期：40(3)
- 关键词：断陷盆地 ; fault-downwarping basins ; 基底构造 ; basement tectonics ; 松辽平原 ; Songliao Plain
- 页码：p.301-306
- 图表：illus., 1 table, 13 refs.
- 分类号：0300
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
The Lishu fault depression in the south of Songliao Basin formed in the Indo-Yanshan movement and developed on the basis of the NE-NNE and NW-NNW direction basement rifts.Based on the 1∶50 000 high-precision gravity and magnetic data processing and combined with drillings,the authors reveal that the basement lithology is mainly metamorphic rock,with carbonate outcropped locally,there are roughly intrusive rocks of Hercynian and Indosinian-early Yanshan periods in the area and infer that the Sauron-Linxi suture zone passes from here.The basement structure and basement fault of this region established the structural form of the basin prior to late Jurassic and influenced the stratigraphic framework and filling pattern of the late basin.
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