The '''postdepositional stage''' is the time after final deposition. All the porosity that forms during this stage is diagenetic or secondary in origin. Diagenetic processes are related to changes in water chemistry, temperature, pressure, and water movement. | The '''postdepositional stage''' is the time after final deposition. All the porosity that forms during this stage is diagenetic or secondary in origin. Diagenetic processes are related to changes in water chemistry, temperature, pressure, and water movement. |