片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。
As cement, authigenic mineral or vein, dawsonite is found not only in Marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.
因此该模型可用于填隙物含量较高的碎屑岩储层孔隙度预测。
This model is suitable for predicting the porosity of clastic rock reservoirs with relatively high matrix content.
分析大姚铜矿砂岩类的常量元素，反映其成岩成矿的构造背景，砂岩铜矿中碎屑岩的常量元素特征主要受物源区控制。
The major elements of clastic rocks in sandstone copper deposit are controlled by the tectonic setting of source area.
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