Test of planktons show the effect of neomorphism
and exhibit sparry texture (Fig.
The formation of microspar has been attributed to aggrading neomorphism (Folk 1965).
The next step is neomorphism which takes place in the form of aragonite to calcite transformation aragonite is unstable mineral and
it changes to low magnesium calcite (LMC) along with the aggrading neomorphism (recrystallization of calcite) which is common in muddy shelf sediments occurs typically in shallow environment by moving of super saturated CaCo3 water especially in meteoric diagenetic environment (Heckel 1983).
The diagenetic fabric is characterized by neomorphism
chemical compaction calcite- filled fractures and stylonodular fabric.
The common diagenetic features within the facies are micritized grains dolomitization dissolution neomorphism
cementation (poikilotopic cement isopachous cement syntaxial overgrowths equant spar drusy spar) pressure solution and fracturing (Plates 7-8).
The diagenetic fabric recognized in the Formation include compaction, cementation, aragonite to calcite transformation, microbial micritization, neomorphism
, pressure dissolution and stylolite formation, mechanical and chemical compactional features as fractured and broken grains, dolomitization, incorporation of iron into calcite and dolomite as late stage diagenetic events and deformation due to tectonism.