Piccolo, Andrea (2012) Analisi elementi maggiori e S in augiti di basalti del ParanÃ¡: implicazioni paleoambientali. [Laurea triennale]
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CFB events are temporally associated to the greatest paleoenvironmental events of the last 300 Myr. SO2 is considered the main cause of environmental change during CFB events. ParanÃ -Etendeka province is not associated to any en-vironmental perturbation. In order to understand the role of SO2 is necessary to quantify the SO2 emitted during the ParanÃ - Etendeka magmatism. A new method has been proposed for determing the pre-eruptive S content of Parana lavas, hing-ing on augites. Several augites from ParanÃ basalts have been selected and ana-lyzed with electronic microprobe and syncrotrone. In this work, electron micro-probe results are described and discussed.
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