Southern Songliao basin consists of four A structural units from west to east： western slopes, southwest ridge, central depression and southeast uplift. Upper Cretaceous Qingshankou Formation shale sedimented in larg...Southern Songliao basin consists of four A structural units from west to east： western slopes, southwest ridge, central depression and southeast uplift. Upper Cretaceous Qingshankou Formation shale sedimented in large-scale invasion of the lake, with a quick settlement, super fast filling compensation deposition characteristics and widely deposition of organic-rich, thick black shale interbedded oil shale, which is the most important source rocks on Songliao basin.展开更多
文摘Southern Songliao basin consists of four A structural units from west to east： western slopes, southwest ridge, central depression and southeast uplift. Upper Cretaceous Qingshankou Formation shale sedimented in large-scale invasion of the lake, with a quick settlement, super fast filling compensation deposition characteristics and widely deposition of organic-rich, thick black shale interbedded oil shale, which is the most important source rocks on Songliao basin.
