Geochemical features of the mantle source beneath IrazĂș and Turrialba volcanoes, Costa Rica

Andrea Di Piazza, National Institute of Geophysics and Volcanology, sez. Palermo, Rome, Italy, Andrea Luca Rizzo, Organization Not Listed, Washington, DC, United States, Guillermo Alvarado-Induni, PYSA ICE, Apdo, Costa Rica, Maria Luisa Carapezza, National Institute of Geophysics and Volcanology, Roma 1, Rome, Italy, Maarten J de Moor, Earth Sciences New Zealand, Lower Hutt, New Zealand and Maria Martinez, OVSICORI-UNA, Heredia, Costa Rica