1 research outputs found
Ăj FTIR mĂ©rĂ©si eredmĂ©nyek az AvasâGutin mĂ©szalkĂĄli vulkĂĄni kĆzeteibĆl: poszterupciĂłs hatĂĄsok nyomai a fenokristĂĄlyok szerkezeti hidroxil-tartalmĂĄban: New FTIR data from the OaĆâGutĂąi Mts. and post eruption effects on the water content of phenocrysts
We studied calc-alkaline volcanic rocks from the OaĆ-GutĂąi Mts.. The major goal of our research was the determination of âwaterâ content in the phenocrysts of the nominally anhydous minerals (NAMs) and also to uncover the possible post eruptive changes in the structural hydroxyl content of NAMs. The selected volcanic rocks were studied by petrography, EMPA, LA-ICP-MS, ICP-OES, ICP-MS and FTIR. Our assumption is that by studying the FTIR spectra of clinopyroxenes, the structural hydroxyl content of the NAMs changed in comparisons to the magmatic equilibrium