The outflow of lagoonal waters along the seafloor to the open sea of the transition zone may explain both: partial dolomitization
of host rocks of Pirgu age and the occurrence of chlorite-smectite in host rocks (Kiipli et al.
is a common diagenetic process in this facies.
Problems, Progress, and Future Research ' Concerning Dolomites and Dolomitization
It contains ellipsoidal primordial facies, complete dolomitization
and vuggy porosity of touching-vug type.
In all zones of karst and dolomitization
, the content and quality of shale kerogen is diminished .
The process of dolomitization
has largely destroyed primary textures as well as fossils.
Carbonate diagenesis includes such major processes as cementation, microbial micritization, neomorphism, dissolution, compaction, and dolomitization
and it operates in three main environments: marine, near-surface meteoritic, and burial (Tucker & Wright 1994).
2004, Conceptual models for burrow-related, selective dolomitization
with textural and isotopic evidence from the Tyndall Stone, Canada: Geobiology, v.
1992, Fluid-inclusion studies of regionally extensive epigenetic dolomites, Bonneterre Dolomite (Cambrian), southeast Missouri: Evidence of multiple fluids during dolomitization
and lead-zinc mineralization, Geological Society of America Bulletin, v.
Bioturbation influences dolomitization
patterns in carbonate rocks
Post-mound early diagenesis including calcite cementation and dolomitization
was controlled by a second period of subaerial exposure after the mound had become buried beneath peritidal mudstone.
It is possible that the silica was derived from the host rock during early diagenesis late in the Permian Period, however, this is difficult to ascertain because of the extensive dolomitization
of the rock body.