The dynamics of the Campi Flegrei caldera magma chamber.

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Authors

Chiara Paola Montagna , Paolo Papale , Antonella Longo 

Abstract

The Campi Flegrei volcanic system is certainly a remarkable case study for what concerns magma chamber dynamics. In fact, its magmatic and volcanic history appears to have been largely driven by chamber processes like fractional crystallization, magma mixing, and volatile degassing. These processes have been intensely investigated with a variety of approaches that are described in many chapters of this book, and more specifically, in Chapters 2 to 5. Here we employ physico-mathematical modelling and numerical simulations in order to study the dynamics of magma convection and mixing in a vertically extended, geometrically complex, compositionally heterogeneous magmatic system representing a schematic simplification of an overall picture emerging from previous studies at Campi Flegrei. Although clearly a simplification, a number of first order characteristics of possible real magmatic systems at Campi Flegrei are accounted for, including the more chemically evolved, partially degassed nature of magmas emplaced at shallow depths, and the likely occurrence of multiple reservoirs with different depth, size and shape which can be connected at certain stages during system evolution, allowing deeper, CO2-rich magmas to rise and rejuvenate the shallow magmas.

DOI

https://doi.org/10.31223/X5JK7W

Subjects

Fluid Dynamics, Numerical Analysis and Scientific Computing, Volcanology

Keywords

Campi Flegrei; magma dynamics; volcanoes

Dates

Published: 2021-09-10 15:17

License

CC BY Attribution 4.0 International

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