摘要
通过对赤峰—铁法晚中生代断陷盆地群充填沉积特征及其演化的研究,本文从沉积环境的角度,将盆地的泥石流相划分为积扇泥石流相、扇三角洲泥石流相、湖泊泥石流相和河流泥石流相。并重点论述了它们在盆地充填中的时空位置、成因和沉积特征。
Through the research about the characteristic and evolving of filling—sediment in the Late Mesozoic fault basis in Chifeng—Tiefa,the debris flow facies in basins are divided into four types, i.e. debris flow facies of alluvial fan, fan—delte, lake and river according to sedimentay environment. Their plsitions of time and space in basin filled,cause of formation and sedimentary characteristic are emphatically discussed.
关键词
断陷盆地
泥石流相
沉积体系
沉积环境
中生代
fault basin
debris flow facies
depositional system
sedimentary enviroment
