The studies of microbiostratigraphic of Tarbur formation in South-East Shiraz areas
Subject Areas :معصومه Azizi 1 , مسیح Afgheh 2
1 - دانشجوی کارشناسی ارشد زمین شناسی، دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران
2 - استادیار دانشگاه آزاد اسلامی واحد شیراز
Keywords: Microbiostratigraphic, Tarbur Formation,
Abstract :
In this work, 2 astratigraphy sections of Tarbur Formation (including astratigraphy Darab section andastratigraphy Shesh-deh section) were investigated. Over 333 meters of sediments of this Formationand 328 thin sections are studied. The studies show that Tarbur Formation in Darab sections includes 2distinct parts of limestone thin bedded and thick bedded. Also, 3 distinct parts of limestone thinbedded, 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., Dictyoconellasp., 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 anatolicaHence, Orbitoides media & Omphalocyclus macroporus Assemblage Zone were considered for Tarburlimestone formation.According to above mentions, we determined Maastrichtian- Paleocene age for Darab section andMaastrichtian age for Shesh-deh section.
