paleoenvironment of Kometan Formation (late-Turonian - Early Campanian) Sulaymaniyah_northeastern Iraq

Abstract

The Kometan Formation is widely distributed in the northern and central Iraq, the studied area includes two sections: the Kosrat anticline and the Khalkan anticline sections. The formation consists of dolomitic limestone and limestone as well as three microfacies have been discovered, (lime mudstone, wackestone, packstone microfacies), the wackestone microfacies is divided in to three submicrofacies (planktonic foraminiferal lime wackestone, keeld planktonic foraminiferal lime wackestone and calcisphere planktonic foraminiferal lime wackestone), while the packstone microfacies studies is divided in to tow submicrofacies (planktonic foraminiferal lime packstone and calcisphere foraminiferal lime packstone). All the sedimentary and fossil evidence refer that the sedimentary environment of the formation is the outer shelf to upper bathyal at the lower and upper parts of formation and its extension to the middle bathyal in the middle part of the formation. Freidman and Reekman 1982.