青藏高原可可西里风火山盆地白垩纪砂岩粒度特征与沉积环境

Granulometric feature and depositional environment of Cretaceous period sandstone of Fenghuoshan basin in the Hoh Xil, Qinghai-Tibet plateau

摘要: 通过对风火山盆地白垩系砂岩薄片的粒度统计分析,划分出3种概率累计曲线,代表3种沉积相,分别为三角洲、河流和湖泊;并对研究区的沉积环境进行了划分,确定了该区为一套陆相沉积环境。这对于研究风火山盆地有重要的地质意义。而且对于该区找矿有重要的现实意义。

Abstract: By the granulometric analysis of Cretaceous period sand stone of Fenghuo shan basin,three probability cumulative curve,that delegated three sedimentary facies,eg.delta,river and lake have been divided. Not only have important geologic significance for research Fenghuo shan basin,but also have importan tactuality significance.