摘要
志留纪末至晚三叠世之间四川盆地西部地壳处于张性状态,发生了强烈的地壳拉张运动,即峨眉地裂运动。二叠纪前为地裂运动伊始期;二纪为地裂运动高峰期;三叠纪为地裂运动衰退期。地裂运动形成的构造格局对沉积、成岩有一定的控制作用,进而在一定程度上控制了该区油气的分布。
The crust of west part of Sichuan Basin was in the state of extension snd underwent stronglyextensional movement, that is, Emei Taphrogenesis, from the end of Silurian to late Triassic. Per-mian,Permian and Triassic were the outset, peak and close stages of the Emei Taphrogenesis, respectively.The structural framework, formed by Emei Taphrogenesis, controlled the sedimentation and diagenesis,thus more or less controlled the distribution of hydrocarbon in the area.
关键词
地裂运动
油气
勘探
四川
盆地
Emei Taphrogenesis
Sichuan Basin
Longmenshan Mountains
new regions for searching gas
