The deposits of Permian system in Kuh-e-Gahkum consist of 480 m clastic
subdiffusion of Faraghan Formation and carbonates of Dalan Formation. In
this section, the sediments of Faraghan Formation, which is gradationally
overlain by Dalan formation, unconformably overlies Zakin Formation (Lower
Carboniferous). In the upper part, Kangan Formation rests on the Permian
deposits with an erosional and unconformable contact. Studying the microscopic
thin sections led to the identification of 37 genera and 37 species of
Foraminifera as well as 14 genera and 15 species of algae. According to the
identified foraminifera in Faraghan and Dalan Formations, the age of the rock
units in Permian system is assigned to Julfian-Asselian.
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