Mechanical compaction during the early diagenetic phase reduced porosity and permeability through increased grain packing, displacement and rearrangement of the detrital fragments, plastic deformation of the ductile mud intraclasts to pseudo matrix as well as bending and squeezing of Biotite between rigid grains. The overall small amounts of early diagenetic cements rendered compaction to be more important than cementation in reducing porosity and permeability (figure 11). | Mechanical compaction during the early diagenetic phase reduced porosity and permeability through increased grain packing, displacement and rearrangement of the detrital fragments, plastic deformation of the ductile mud intraclasts to pseudo matrix as well as bending and squeezing of Biotite between rigid grains. The overall small amounts of early diagenetic cements rendered compaction to be more important than cementation in reducing porosity and permeability (figure 11). |