Evolution of the volcanism in the area of interaction between the arabian, anatolian and iranian plates (Lake van, Eastern Turkey) |
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| Authors: | F Innocenti R Mazzuoli G Pasquare' F Radicati Di Brozolo L Villari |
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| Institution: | 1. Istituto di Mineralogia e Petrografia, University of Pisa, Pisa Italy;2. Centro di Geologia Strutturale e Dinamica dell'' Appennino, C.N.R., Pisa Italy;3. Istituto di Geologia, University of Milano, Milano Italy;4. Laboratorio di Geocronologia, C.N.R., Pisa Italy;5. Istituto Internazionale di Vulcanologia, C.N.R., Catania Italy |
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| Abstract: | Geological investigations of the Lake Van area (Eastern Turkey) have shown the coexistence of a calc-alkaline volcanism, active at least since Lower Miocene, with an alkaline one, beginning around 6 m.y. ago. The calc-alkaline volcanic activity is related to subduction of the Arabian plate under the Anatolian—Iranian continental mass. The alkaline volcanism, on the other hand, is attributed to the fragmentation of such a mass and to the divergent motion of the Anatolian and Iranian plates; a process which began in Upper Miocene as a consequence of the continental collision with Arabia. |
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