Observation on Fore arc basin model in realation totectonosedimentary position in NW Iran

Category Tectonic & Seismotectonic
Group GSI.IR
Location 20th symposium on geosciences
Holding Date 16 April 2008

     Upper cretaceous sediments oF NW Iran EasLern Qareh Zia Od din ) mainly consist of while to grey marly limestones. Microfacies studies of outcrops shows that the age of these sediments are coniacia to Maastrichtian and they are deposited in Deep shelf margin.Companng these sediments with NW Azarbijan colouerd melange complex and with regarding to intrusive masses and magmatic are position behind these sediments, Fore are basin model is proposed for the sediments of this region. All these support the idea of subduction and collision of Iran and Arabian plates with tectono—sedimentary mechanism, whose converngence began from upper eretacous,ending in middle Eocen .

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