摘要
特提斯构造带油气资源丰富,从特提斯演化来分析盆地油气成藏具有重要的意义。西北非位于特提斯构造带西段,具有三叠、锡尔特、伊利兹等多个超大型含油气盆地,主要有以撒哈拉地台为主的古生界成藏组合和北部大陆边缘为主的中新生界成藏组合。特提斯构造演化对西北非油气成藏具有明显的控制作用:特提斯洋开启以及海侵阶段,控制盆地烃源岩、盖层发育;特提斯洋关闭阶段,构造运动活跃,发育含油气圈闭,控制油气运移及分布。
Northwest Africa lies in the western part of the Tethyan tectonic domain, where there occur abundant petroleum resources and petroliferous basins such as Triassic, Illizi and Sirte giant petroliferous basins. Two types of plays are recognized, including the Palaeozoic plays on the Sahara platform and Mesozoic plays on the northern continental margins. The controls of the Tethyan tectonic evolution on the hydrocarbon accumulation in Northwest Africa are manifested in the development of the source rocks and seal rocks during the opening stages of the Tethyan Sea and subsequent transgressions, and the development of oil traps, oil migration and distribution due to active tectonic movements during the closure stages of the Tethyan Sea.
出处
《沉积与特提斯地质》
CAS
CSCD
2008年第4期24-27,共4页
Sedimentary Geology and Tethyan Geology
基金
国家自然科学基金重点项目(40534019)
中国科学院知识创新工程重要方向项目(KZCX2-YW-203-2)
关键词
特提斯
西北非
构造演化
油气成藏
Tethys
Northwest Africa
tectonic evolution
hydrocarbon accumulation
