Paleoenvironmental model and sequence stratigraphy for the Oligo-Miocene foraminiferal limestone in east of Dogonbadan

The Asmari Formation of the Zagros Basin is a thick sequence of shallow water carbonate. In the study area, it is subdivided into 11 microfacies that are distinguished on the basis of their depositional textures, petrographic analysis and fauna. In addition, four major depositional environments were identified for the Asmari Formation. These include peritidal, inner ramp, middle ramp and outer ramp environmental settings which are interpreted as a ramp carbonate platform. In the Asmari carbonate succession four third-order depositional sequences are recognized from deepening and shallowing trends in the depositional facies and sequence boundary features.