Writers : Rivandi, B.1; Nadjafi, M.; Moussavi-Hai ami, R.; Mahboubi, A.; Vahidinia, M.
Publishing Year : 1389

Abstract :

Barremian-Early Aptian Tirgan Formation has an excellent northwest- southeast trending exposure in eastern part of the Kopet-Dagh Basin. This formation consists mainly of oolitic and Orbitolina limestone and shale interbeds. It is conformably overlain and underlain by the Shurijeh and Sarcheshmeh Formations respectively. In order to recognize the sedimentary facies and study sequence stratigraphy, two stratigraphic sections were measured and sampled in northeastern and southwestern flanks of Khor syncline. The results of this study revealed that these sediments are deposited in shallow carbonate ramp within 4 facies belt including open marine, bar, lagoon and tidal flat. Sequence stratigraphic analysis led to identification of 2 third-order depositional sequences, bounded by type 2 sequence boundaries. Interpreted sea level curve in the Khor synclinal area can be relatively correlated with global curves during Barremian-Aptian time.

Subject List : Sequence Stratigraphy