CRYSTAL CHEMISTRY OF ZIRCON CRYSTALS FROM TWO FELSIC DYKES OF THE MALOYANISOL DYKE SWARM (AZOV REGION, UKRAINE): EVIDENCE OF A COMPLEX EMPLACEMENT HISTORY?
Abstract
Zircon crystals from two felsic dykes belonging to the Maloyanisol dyke swarm (Eastern Azov region, Ukraine) were investigated by EMPA, XRD, FTIR and LA-ICP-MS methods. The analytical results reveal the characteristic features of the crystal chemistry and structure of zircons from both dykes, and show heterogeneity of zircon populations. The identified variations in chemical composition and local amorphization explain the different U-Pb ages of studied zircons and reflect the complex history of magma evolution during the formation of the Maloyanisol dyke swarm.
Geological structure and history of the geological development of the Ukrainian shield (to the 100th anniversary of the birth of Academician of the National Academy of Sciences of Ukraine M.P. Shcherbak)
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Pages
188-192
Published
August 15, 2024
Copyright (c) 2024 Press of the Institute of Geological Science of the National Academy of Sciences of Ukraine
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Co-publisher's ISBN-13 (24)
ISBN-978-617-8521-00-4