detrital

The sediments are detrital and largely of greywacke facies.

沉积岩为屑质，大部分属于杂质砂岩相。

Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.

海绿石、碳酸盐骨骸屑、海相石和胶磷矿普遍出现。

The albite component increases while anorthic component decreases in detrital plagioclase.The plagioclase turned into an end - member component of albite.

斜长石屑中钠长石组分逐渐增多，钙长石组分逐渐减少，最终形纯钠端元钠长石。