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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8313

Authors: Pappalardo, L.*
Mastrolorenzo, G.*
Title: Rapid differentiation in a sill-like magma reservoir: a case study from the campi flegrei caldera
Title of journal: Scientific Report
Series/Report no.: /2 (2012)
Publisher: Nature Publishing Group
Issue Date: 2012
DOI: 10.1038/srep00712
Keywords: magma
campi flegrei caldera
Abstract: In recent decades, geophysical investigations have detected wide magma reservoirs beneath quiescent calderas. However, the discovery of partially melted horizons inside the crust is not sufficient to put constraints on capability of reservoirs to supply cataclysmic eruptions, which strictly depends on the chemical-physical properties of magmas (composition, viscosity, gas content etc.), and thus on their differentiation histories. In this study, by using geochemical, isotopic and textural records of rocks erupted from the high-risk Campi Flegrei caldera, we show that the alkaline magmas have evolved toward a critical state of explosive behaviour over a time span shorter than the repose time of most volcanic systems and that these magmas have risen rapidly toward the surface. Moreover, similar results on the depth and timescale of magma storage were previously obtained for the neighbouring Somma-Vesuvius volcano. This consistency suggests that there might be a unique long-lived magma pool beneath the whole Neapolitan area.
Appears in Collections:Papers Published / Papers in press
04.08.03. Magmas
04.08.08. Volcanic risk
04.08.05. Volcanic rocks
04.04.05. Mineralogy and petrology

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