The sediments are detrital and largely of greywacke facies.

沉积岩为碎，大部分属于岩相。

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

海绿石、碳酸盐骨骸碎、海相化石和胶磷矿普遍出。

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

石碎中钠石组分逐渐增多，钙石组分逐渐减少，最终形成纯钠端元的钠石。