Writers : Pursoltani,mahdireza؛Musaviharami,seyedreza
Refference : Proceeding Of The First Applied Geological Congress Of Iran
Publishing Year : 1386

Abstract :

After the closure of Paleo-Tethys, in Middle Jurassic, at the southern parts of Turan Plate, the Kopet-Dagh basin has formed. The Kashafrud Formation, a thick siliciclastic succession, Upper Bajocian-Lower Bathonian in age, unconformitively laied over Triassic sedimentary and older ultramafic rocks. In Kashafrud Formation, 3 facies associations, including conglomerate, sandstone and shale have been identified. Based on lithofacies and ichnofossils, it is interpreted that the Kashafrud Formation may have been deposited in fluvio-deltaic to turbidtic environments. Although, the Kashafrud Formation is a good opportunity to study the relation between sedimentation and syndepositional tectonic subsidence (or uplift) along faults in this region. The effects of these processes cause the variation in depositional sequences. The Kashafrud Formation contains an extensive sandstone intervals in Middle Jurassic successions. Therefore, the exist of such thick sandstone and mudstone units may suggests as a source rock as well as a local reservoir rocks in the Kopet–Dagh basin.

Subject List : silisic clastic