Late Cimmerian tectonic phase was the main cause for depositing terrigenous-evaporite sediments of the Shurijeh Formation in large area of eastern and central part of Kopet Dagh Basin during Late Jurassic-Early Cretaceous. In order to recognize facies changes and depos More
Late Cimmerian tectonic phase was the main cause for depositing terrigenous-evaporite sediments of the Shurijeh Formation in large area of eastern and central part of Kopet Dagh Basin during Late Jurassic-Early Cretaceous. In order to recognize facies changes and depositional environments of the Shurijeh Formation in east of the Kopet Dagh, 3 stratigraphic sections including Baghak and Mozduran surface sections and a well from Khangiran gas field were selected and studied. Field surveys together with microscopic studies of 311 thin sections reveal that depositional environment of the lower part of the Shurijeh Formation is mainly interpreted as fluvial environment, especially braided and meandering rivers. In the upper part of this formation, coastal plain and tidal flat facies, which locally contain lagoon and shoal sediments, are observed.
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