Writers : Kavousi, Mohammad Ali; Lasemi, Yaghoub; Moussavi Harami, Seid Reza; Sherkati, shahram
Refference : The 26th Symposium on Geoscieences;Tehran
Publishing Year : 1386

Abstract :
Mozdoran formation (Upper Jurassic-Lower Cretaceous) (over 600m) in western Kope Dagh Basin is composed mainly of limestone and dolomite with marl intercalations. Its lower contract with the Chaman Bid Formation is gradational but its upper contact with the Zard Formation (Siliciclastic) is unconformable.
Detailed field and petrographic analysis of facies, led to recongnition of basinal, fore-shoal, shelf-margin, lagoonal and tidal-flat facies belts.
Gradual infilling of the deeper part of the basin with calcitubidites and pelagic facies and domination of grainstone, packstone facies over reefal facies and establishment of microbiolitre/cyanobacteria with low sediment production resulted in decreasing topography between basin and inner shelf. The mentioned factors caused platform evolution from a rimmed shelf to a ramp platform during deposition of the Mozduran Formation.
Subject List : Shelf, ramp