Microfacies Analysis and Diagenetic Effects of Middle Jurassic Succession in Rania and Sargelu Sections, Northern Iraq

The studied area covers two outcrops they are located within Sulaimaniya, northeastern of Iraq (Rania and Sargelu sections). Sections in village Unstable Shelf, High Folded Zone, including Surdash anticline, while Rania Sectionis city near Hanjira the Shaweri anticline. carbonates represent major microfacies constitute lime mudstone microfacies, wackestone Calcisphere-Posidonia submicrofacies, posidonia packstone Posidonia Posidonia-Ostacoda Crystalline Microfacies. observations show that basin Formation represents a deep part ramp system.These variably affected by several diagenetic processes mechanical chemical compaction, cementation, recrystallization dolomitization. chert shows high degree quartz crystallinity which indicates diagenetically product from amorphous silica many radiolarians, remnant is preserved units