Diagenesis occurs where the mineralogy of the rock becomes unstable as a result of changes in the conditions or chemistry.
Instability usually occurs at grain contacts and in pore space between the grains.
Note that any sediment that has been deposited is subject to diagenesis, not just siliciclastics. The diagenesis of carbonate rocks has also been studied in great detail. Back to Siliciclastics Rocks Home 8,934 accesses since August 8, 1997.