78 th EAGE Conference & Exhibition 2016 – Workshop Programme Vienna, Austria, 30 May – 2 June 2016 Tectono-sedimentary evolution of the Eastern Kopet Dagh Fold and Thrust Belt, North Eastern Iran Noemani Rad, R., Gharabeigli, Gh. and Soleimany, B. Abstract The Amu Darya Basin is a highly productive petroleum province in Turkmenistan and Uzbekistan, extending southward to Iran and Afghanistan. The Eastern Kopet Dagh region considered as an important hydrocarbon province seated in NE of Iran and southern part of the Amu-Darya Basin. The Late Triassic-Jurassic extensional tectonic produced a domino- type half-graben/tilted-block system, with more than 9 km thickness of the syn to post-rift sediments (Late Triassic- Present Day), as measured in the giant Gonbadly-Khangiran gas fields. The Gonbadly and Khangiran structures were formed by Paleocene-Present Day oblique inversions of the Jurassic half grabens above the Mid Jurassic Kashafrud Formation, which is the main detachment in this region. The sequence stratigraphy of the Jurassic Kashafrud Formation derived from the marginal fault scarps; depend on the balance between uplift and erosion rates, in the basin margins. The attribute study and unsupervised sequence stratigraphy represent a Northeastward channel-lobe system in Low Stand System Tract, associated levees and overbank areas on the slope to the basin floor fans. The result of this research leads to explore a sort of complex (structural and stratigraphic) traps in the syn-rift sediments as a new potential hydrocarbon system in Kopet Dagh basin. Keywords: Kopet Dagh, Amu Darya Basin, Syn-rift basin Analysis, Graben Inversion, Structural Geology, Sequence Stratigraphy, Seismic interpretation. Corresponding author: r.noemani.rad@gmail.com Introduction The Iranian Kopet Dagh basin was formed in northeastern Iran and south-western Turkmenistan after the closure of the Palaeo-Tethys Ocean and the Middle Triassic orogeny (Berberian and King, 1981; Ruttner, 1991, Figure 1a). The Jurassic to the Early Paleocene deposits, relatively were sediment continuously as the syn and post-rift sequences (Afshar-Harb, 1969 & 1979; Kalantari, 1969 & 1987;