Sedimentary basin analysis of Permo-Triassic sequence with a view to microfaciesesin the Shurjestan region at Fars province

In this study, based on nearly 170 limestone and clastic samples from 5 stratigraphic sections at Shurjestan area in the northern part of the Fars province, Abade, Hambast, formations and deposits Equivalent of Elika Formation have been studied.In selective stratigraphic sections overall thickness of Abade Formation is 25 -312 m, Hambast Formation is 23 – 32m, and thickness of Elika Formation in average is 29 m.Microfacies study of Shurjestan area shows that these formation sediments have been deposited in a carbonate ramp that incloud Tidal flat, lagoon, shoal and open marine In the studied stratigraphic sections lack of reef facies and microfacieses affiliate like roadstone floatstone, show this ramp is a homoclinal ramp.