Fine-sand facies 细砂岩相
Coarse-sand facies 粗砂岩相
sand-prone depositional facies 偏砂沉积相
prodelta facies sand 三角洲前缘相
The low numerical value distribution of these two types trace elements in the Aeolian sand facies represents erosion and accumulation under wind force during the cold-dry climate.
这两种类型元素在风成沙中呈现的含量低值揭示了其时干旱寒冷气候作用下 风力的侵蚀 搬运与堆积作用；
Results the model of the fluvial facies sand-body sediment the extensive connecting body for braid river sang-body and the half connecting body for meandering river sand-body.
结果建立了辫状河砂体“泛连通体”、曲流河砂体“半连通体”的储层砂体沉积模式。
Sedimentary environment and its evolution, distribution of sedimentary facies and sand bodies are discussed on the base of the data of log, drilling and c, o isotope.
本文利用测井、钻井和C、O同位素等资料，研究了核二段各砂组沉积时期的沉积环境、相带分布、砂体展布以及沉积演化规律。
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