Diagenetic model of carbonate rocks of Guri Member of Mishan Formation (Lower to Middle Miocene) SE Zagros basin, Iran

摘要: In order to understand the post-depositional history of carbonate rocks Guri Member (Lower Middle Miocene), three stratigraphic sections were selected in north Bandar-Abbas southeast Iran. Sampling was carried out, analyzed for selective parameters such as oxygen and carbon isotopic compositions (δ18O δ13C) interpreted present study. We recognized several diagenetic processes including micritization, cementation, neomorphism, compaction, dissolution, silicification, dolomitization, fracturing vein filling. Some occurred at different conditions, so achieve precise interpretation, samples from components as, micrite, fracture cement, solution pore intergranular some biotic allochems analyzed. this study micrite subdivided into two groups micro-spary micrite. They under Cathodoluminescence microscope. addition, classified five based on their depositional environments: supratidal, lagoon, coral bar, open sea, basin. There minor changes stable isotope ratios sedimentary environments, stratigraphy successions, or properties. study, similar calcite cements petrography studies differentiated by data. Those have formed environments meteoric burial cements. Paragenetic sequence integration petrographic studies. reconstructed models four stages marine, meteoric, burial, uplifting.