The Mozduran Formation (Upper Jurassic) in the eastern part of the Kopet-Dagh Basin (NE Iran) consists of siliciclastic rocks.

Facies analysis led to identification of 14 lithofacies, classified into four categories.

These lithofacies shows that study rocks have been deposited in tide-dominated coastal environment and sometimes delta environments.

Sequence stratigraphy analysis shows that study deposits were formed during five stages of sea level changes.