diagenesis

1.The main diagenesis developed during the LST period is fargoing karstification in the exposed area.

结果表明，与LST有关成岩作用主要为泛暴露溶蚀作用；

2.Therefore, the albitization of plagioclase is shown in the early stage of diagenesis and albitization of potash feldspar appears only in the late stage of diagenesis.

因此，斜长石钠长石可见于成岩早期，而钾长石钠长石发生于成岩晚期。

3.Burial diagenesis causes a progressive transformation of smectites, the end-products being dependent on PH and pore water chemistry.

埋藏成岩作用可使蒙脱石进一步转，最终产物决定于PH值及孔隙学性质。

4.This rock contained chalcedonic cement before it underwent diagenesis, a process where low temperatures and low pressures alter the content of sediments before they finally lithify, or turn into rock.

在它经历成岩作用之前，它含有燧石质胶结成分。成岩作用过程中，低温抵压改变了沉积物成分，而后固结成岩。