EGU General Assembly 2021 , 2021-03-03

Title : ( Age of the Eastern Iranian oroclinal Buckling inferred from a U235/Pb207 dating on radial dikes in the Qayen Area )

Authors: Emad Rojhani , sasan bagheri , douwe Hinsbergen , hosein azizi , Farzin Ghaemi , nalan lom , abdol qhayyum ,

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Abstract

The Eastern Iranian Orocline provides us several opportunities to study magmatism in relation to tectonic events. The buckling of this orocline is accompanied by an extreme extension in its Khorasan outer arc during which a calc-alkaline dike swarm, generally andesite to dacite, intruded in a radial pattern into the Paleocene-Eocene volcano-sedimentary units, belonging to the platform of the Lut block. The azimuth of these dikes shows a declination of 30 degrees, from N300o to N330o. The U235/Pb207 age of ~41±74 Ma from zircon crystals taken from the dikes represents a considerable buckling with an extension occurred during the middle-upper Eocene. In fact, this time refers to the buckling in the boundary of the inner- and outer-arc of the orocline. This could be a noticeable document of syn-orocline magmatism in the Tethyan realm in the east of the Iranian plateau. The dikes and their host rocks are also sampled for AMS analysis and paleomagnetic measurements to test the amount of the oroclinal buckling in the Qayen area. Powered by

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@inproceedings{paperid:1085327,
author = {Rojhani, Emad and ساسان باقری and داو هینسبرگن and حسین عزیزی and Ghaemi, Farzin and نالان لوم and عبدل قیوم},
title = {Age of the Eastern Iranian oroclinal Buckling inferred from a U235/Pb207 dating on radial dikes in the Qayen Area},
booktitle = {EGU General Assembly 2021},
year = {2021},
location = {وین},
}

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%0 Conference Proceedings
%T Age of the Eastern Iranian oroclinal Buckling inferred from a U235/Pb207 dating on radial dikes in the Qayen Area
%A Rojhani, Emad
%A ساسان باقری
%A داو هینسبرگن
%A حسین عزیزی
%A Ghaemi, Farzin
%A نالان لوم
%A عبدل قیوم
%J EGU General Assembly 2021
%D 2021

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