Diagenesis

1- Compaction: This is a physical process form mainly because of burial and accumulation of sediments which cause the decrease of pores and pushing the grains (particles) closer together.

2-Cementation: Grains are cemented together by deposition of minerals or grains.

3- Recrystallization: Recrystallization occurs when most of the lime-mud is recrystallized into microspar and pseudospar within most of the limestone lithofacies.                                          4- Solution: Some minerals dissolve.



5- Micritization: This occurs when most of the matrix and grains(including fossils) change to micrite (we say it is micritized).

6-Replacement: Some minerals dissolve and others are precipitated (minerals replace others).

7- Authigenesis: New minerals are formed.

8- Dolomitization: Example: when calcite mineral changes to dolomite.

9- Dedolomitization: (= calcitization) reverse of dolomitization-dolomite changes to calcite.