Petrogenesis And Tectonic Setting Of The Vqlcanic Suite West Of Wadi Bagharid South Eastern Desert, Egypt
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The metavolcanic belt west of Wadi Bagharid, south Eastern Desert, Egypt is geologically investigated. Petrographically, the metavolcanics are subdivided into four rock varieties namely: metaandesites, metadacite-rhyodacite, metarhyolite and metapyroclastics. Petrochemical characters based on major and trace elements data of nine analysed samples are clarified. Behaviour of major and trace elements are discussed and chemical classifications are presented based on major and trace elements composition. Petrographical and petrochemical data suggest a calc -alkaline trend for the examined rocks during island arc development at converging plate margin, but well behind the deep ocean trench.