Microfacies, sequence stratigraphy and cooling events of the oligocene (palani and tarjil formations)‎ at Sinjar Area, Northwestern Iraq

الملخص EN

Lithoiogical study of Oligocene carbonate exposure near Sinjar City northwestern Iraq indicates its affiliation to Palani and Tarjil Formations.

One microfacies characterizes the condensed section of Palani Formation (Early Oligocene), attributed to outer shelf environment.

Three microfacies were distinguished throughout Tarjil Formation, their depositional environments ranging from middle shelf to middle bathyal zones.

Sequence stratigraphie analysis delineated five sequences, four of them are of 3rd order and one of 4th order.

Two cooling events are inferred during the Middle Oligocene, corresponding to global cooling and sea-level fluctuations.

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