Biostratigraphy and paleoecology research on Qom Formation based on microfossils at East of the Qom

This research has described for determinate of Oligo-Miocene Foraminifers at the Do Baradar section. The main aim project was scrutiny age of this Formation and Paleoecology distribution lot of basins have created with big streams between Zagros and Alborz with Central Iran. Final transgressive sea on the Rupelian to Late Miocene have created the continue sediments consist low depth Lime stone and Marls. These sediments have complete different colors and lithology have named Lower Red Formation and Upper Red Formation and total Qom Formation. In this section the thickness of Qom Formation is 830 Meters that 8 units can separate of Marls and Limestone. From the Limestone have collected a lot of Samples and on Marls have samples isolate Foraminifers. The result of this research have been showing: The Central Iran Sediments on the Rupelian to Burdigalian have a warm climate (Tropical) to sub warm (Subtropical) climate with restrict marine environment but continue to open sea. The depth on Oligo-Miocene was different and have swing.