is diagenesis chemical
Introduction. Diagenesis encompasses all the physical and chemical processes that affect sediments and sedimentary rocks in the portion of the rock cycle that includes the period of burial between deposition and weathering, and also between deposition and the onset of metamorphism.hysical grain rearrangement in very early diagenesis of unconsolidated sediment is an important control on the subsequent path of chemical diagenesis because of the effects on permeability and grain surface characteristics.
From Wikipedia, the free encyclopedia. Diagenesis /ËdaÉªÉËdÊÉnÉsÉªs/ is the change of sediments or existing sedimentary rocks into a different sedimentary rock during and after rock formation (lithification), at temperatures and pressures less than that required for the formation of metamorphic rocks.It does not include changes from weathering.he study of diagenesis in rocks is used to understand the geologic history they have undergone and the nature and type of fluids that have circulated through them.