Sedimentology & Microfacies Study of the Nfayil formation in Southern Samawa, -IRAQ

Abstract

The petrographic study is based on 88 samples obtained from 18 surface sections. The aim of this study is to shed more light on the facies, and the environment deposition for Nfayil formation, which is results depositional environments are interpreted as categorized by Flugel (2004). Show restricted carination on marine platform, deposited in very shallow hypersalline lagoon, was deposited in shallow marine environment with normal salinity. The age of Nfayil Formation, depending on the fossils content (Peneroplisfarsensis, Ammonia beccarii, Elphidiumsp., Textulariasp., Miliolids, rotalids). The assemblage fauna above the typical is Middle Miocene which is equivalent to Fat`ha Formation.