detrital

The sediments are detrital and largely of greywacke facies.

沉积岩为碎屑质，大部分属于杂质砂岩相。

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

海、酸盐骨骸碎屑、海相和胶磷矿普遍出。

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

碎屑中钠组分逐渐增多，钙组分逐渐减少，最终形成纯钠端元的钠。