Structural Characteristics and its Petroleum Geological Significance of the Boerzanglongba Anticline in the Qiangtang Basin , Northern Tibetan Plateau , China
详细信息
- 责任者：Song Chunyan (Graduate Department ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Wang Jian
- 刊名：Geotectonica et Metallogenia
- 出版年：2012
- 卷期：36(1)
- 关键词：油气勘探 ; petroleum exploration ; 背斜 ; anticlines ; 羌塘盆地 ; Qiangtang Basin
- 页码：p.8-15
- 图表：5 illus., 1 table, 27 refs.
- 分类号：1003
- issnNo：ISSN1001-1552
- isbnNo：CN44-1595/P
摘要
Qiangtang Basin, the largest marine sedimentary basin of China, is located in the northern Tibetan Plateau. Structural deformation of the Boerzanglongba anticline in the eastern Qiangtang Basin can be divided into three stages: the early NNE-SSW compression stage, the middle NW-SE compression-shear stage and the late NE-SW compression stage. The results of the fluid inclusions of crack-filling veins show that the Boerzanglongba aticline was an ancient structural trap and reservoir for some oil-gas at one time. The structural strain formed the migration channels and controlled the migration of oil and gas. The time of the structural deformations matches the time of the oil-gas migration and pooling. The upper Triassic petroleum system should be the main target of oil-gas exploration in the Qiangtang Basin.