Figure 4: Pinda Group. A-D) Dolograinstone with some leaching vugs: A) TL transmitted light; B) PL polarized light (analyzed); C) RL reflected light; D) ERL enhanced reflected light. E-F) Partly dolomitized grainstone. The micritic ooid cortexes and the echinodermic remains are not dolomitized, nor leached: E) TL transmitted light; F) PL polarized light (analyzed). For confidentiality purposes the sample depths and the name of wells are not provided.