Regimes of magma recharge and their control on the eruptive behaviour during the period 2001–2005 at Mt. Etna volcano

Abstract

Mount Etna volcano (Italy) during the period 2001-2005 has undergone a period of intense eruptive activity marked by three large eruptions (

Continuous magma recharge at Mt. Etna during the 2011–2013 period controls the style of volcanic activity and compositions of erupted lavas

“…In this regard, changes of the products chemistry observed through the 2001-2006 period have been attributed to recharge of volatile-rich magma with different geochemical signature (cf. Clocchiatti et al 2004;Métrich et al 2004;Rizzo et al 2006;Viccaro et al 2006;Corsaro et al 2009;Ferlito et al 2009Ferlito et al , 2010Ferlito et al , 2012Nicotra and Viccaro 2012a).…”

“…Etna, where eruptions display, over the last decades, a wide range of styles, from wholly effusive to strongly explosive (i.e., violent Strombolian). Specifically, after the eruptive cycle constituted by five major effusive and explosive events (i.e., 2001, 2002-03, 2004-05, 2006 and 2008-09), which have been characterized by active vents placed at distinct sites of the volcano flanks and summit (e.g., Allard et al 2006;Ferlito et al 2012;Nicotra and Viccaro 2012a;Corsaro et al 2013), the 2011-2013 activity at Mt. Etna has been affected by striking changes either in the site or style of emission (Patanè et al 2013;Behncke et al 2014;Viccaro et al 2014).…”

Clinopyroxene and titanomagnetite cation redistributions at Mt. Etna volcano (Sicily, Italy): Footprints of the final solidification history of lava fountains and lava flows

“…In this framework, Mt. Etna volcano (Sicily, Italy) provides a variety of crystallization scenarios where textures and compositions of phenocrysts, microphenocrysts, and microlites are indicative of processes that initiate at mantle depths, continue in the conduit of the volcano and terminate at subaerial conditions (Ferlito et al, 2008;Viccaro et al, 2010;Ferlito et al, 2011;Kahl et al, 2011;Ferlito and Lanzafame, 2010;Armienti et al, 2013;Corsaro et al, 2013;Lanzafame et al, 2013). The importance of minerals to reconstruct magma dynamics is emphasized by the historic and recent eruptions at Mt.…”

Cognate xenoliths in Mt. Etna lavas: witnesses of the high-velocity body beneath the volcano

“…1) (Métrich et al 2004;Viccaro et al 2006;Corsaro et al 2007) and in 2002-03 from the Southern Fissures (SF, Fig. 1) (Andronico et al 2005;Spilliaert et al 2006;Ferlito et al 2012).…”