HR: 1340h
AN: V33A-0668    [Abstracts]
TI: Interdisciplinary study of critical evolution to pre-eruptive and eruptive processes at Campi Flegrei active caldera.
AU: * Pappalardo, L
EM: lucy@ov.ingv.it
AF: istituto nazionale geofisica e vulcanologia - Osservatorio Vesuviano, via diocleziano 328, napoli, na 80124
AU: mastrolorenzo, g
EM: mastro@ov.ingv.it
AF: istituto nazionale geofisica e vulcanologia - Osservatorio Vesuviano, via diocleziano 328, napoli, na 80124
AU: de natale, g
EM: denatale@ov.ingv.it
AF: istituto nazionale geofisica e vulcanologia - Osservatorio Vesuviano, via diocleziano 328, napoli, na 80124
AU: troise, c
EM: troise@ov.ingv.it
AF: istituto nazionale geofisica e vulcanologia - Osservatorio Vesuviano, via diocleziano 328, napoli, na 80124
AU: pingue, f
EM: pingue@ov.ingv.it
AF: istituto nazionale geofisica e vulcanologia - Osservatorio Vesuviano, via diocleziano 328, napoli, na 80124
AB: The knowledge of pre-eruptive and eruptive mechanisms of Campi Flegrei active volcanic field is essential in order to project monitoring systems and to recognize possible precursors of an eruption. We present the results of petrological studies on a series of samples spanning the whole Campi Flegrei volcanic history and of high pressure /temperature experiments conducted on the studied natural samples to define magma chambers chemico-physical conditions and location as well as their opening processes. Numerical modeling of thermo fluid dynamic behavior of the hydrothermal system and its possible evolution towards critical conditions have been analyzed, in order to investigate the possible pre-eruptive evolution of the volcanic system and the geophysical and geochemical precursors. Results suggest that in critical conditions the system is capable to rapidly evolve towards the eruption with fast conduit opening and magma rising. These results should be considered in the emergency plan of Campi Flegrei caldera.
DE: 8400 VOLCANOLOGY
SC: Volcanology, Geochemistry, Petrology [V]
MN: Fall Meeting 2005