Writers : Kobari, Reihaneh; Mahmoudi gharaei; Mohammad Hossein; Mahboubi, Asadollah; Moussavi Harami; Seyed Reza
Refference : 27th Symposium on geosciences and the 13th symposium on geological society of Iran-Tehran
Publishing Year : 1388

Abstract :

The lower Cretaceous of Tirgan Formation has widely cropped out in the central part of the Kopet-Dagh basin in north east of Iran, This formation mainly consists of oolitic & bicclastic limstones with minor amount of shale and sandstone in studied area in north of Chenaran. Lower and upper contacts with Shurijeh and Sarcheshmeh Formations are non-erosional and conform. Microfacies analysis of 100 thin-sections led to icentification of 15 carbonate facies and 2 siliciclastic lithofacies. These are deposited in coastal, tidal flat, lagoon, shoal and open marin facies belts in a homoclinal ramp carbonate platform. Sequence stratigraphy analysis of Tirgan Formation led to distinguish four depositional sequences in Shotor-Pa section, and three depositional sequences in Boghmej.

Subject List : Sequence Stratigraphy