The studies of microbiostratigraphic of Tarbur formation in South-East Shiraz areas

In this work, 2 astratigraphy sections of Tarbur Formation (including astratigraphy Darab section and astratigraphy Shesh-deh section) were investigated. Over 333 meters of sediments of this Formation and 328 thin sections are studied. The studies show that Tarbur Formation in Darab sections includes 2 distinct parts of limestone thin bedded and thick bedded. Also, 3 distinct parts of limestone thin bedded, medium bedded and thick bedded in Shesh-deh section, were observed. In these sections, thefollowing index foraminifers were recognized: Orbitoides media, Omphalocyclus macroporus, Dicyclina schulumbergri, Dicyclina sp., Dictyoconella sp., Dicytoconella compalanta, Minoxia sp., Nezzazatinella sp., Rotalia sp., Rotalia skouransis, Antaliya korayi, Antalya sp., Broekinella sp., Lepidorbitoedes sp., Siderolites sp., Loftusia minor, Salpingoporella turgida, Salpingoporella dinarica, Vania anatolica Hence, Orbitoides media & Omphalocyclus macroporus Assemblage Zone wereconsidered for Tarbur limestone formation. According to above mentions, we determined Maastrichtian- Paleocene age for Darab section and Maastrichtian age for Shesh-deh section.