Study of processes and diagenetic sequence of carbonate rocks of the Badamu Formation (Lower- Middle Jurassic) in north of Tabas, east of Iran

For the purpose of interpretation of paragenetic sequence and post-depositional history of the carbonate rocks of Badamu Formation carbonate rocks (Lower–Middle Jurassic), a selected section (thickness= 101 m) including grainstones to packstones in north of Tabas city (east of Iran) has been studied. The main diagenetic processes are micritization, cementation, compaction and dissolution, neomorphism, dolomitization, fracturing and pore-filling, bioturbation and geopetal fabric. The results of geochemical analysis reveal positive relationships between Fe, Mn, Sr and Na amounts, whereas Mg shows negative relation to the others. According to the petrographic and geochemical evidences, paragenetic sequence of the Badamu Formation carbonates has been purposed. Hence, it has been concluded that four different environments (i.e. marine, meteoric, burial and uplift) are recognizable and also the sediments have been affected during eogenesis, mesogenesis and telogenesis stages.