Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7522
AuthorsLa Felice, S.* 
Landi, P.* 
TitleThe 2009 paroxysmal explosions at Stromboli (Italy): magma mixing and eruption dynamics
Issue DateNov-2011
Series/Report no.9/73(2011)
DOI10.1007/s00445-011-0502-z
URIhttp://hdl.handle.net/2122/7522
KeywordsStromboli
Paroxysm
Glass chemistry
Mixing
Eruption dynamics
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.03. Magmas 
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring 
AbstractThree small-scale paroxysmal explosions (also called major explosions) interrupted ordinary mild Strombolian activity at Stromboli on May 3, November 8 and 24, 2009. Products were largely confined to the summit area, except in the November 24 event, during which coarse pumiceous lapilli reached the coast. Emission of crystal-poor pumice closely mingled with crystal-rich products characterized the three events. The textural and chemical study of minerals and glassy matrices revealed that the two end-members are mingled together physically in the May 3 and November 24 pumice, whereas November 8 products contain heterogeneous glass with intermediate compositions derived from chemical mixing between crystal-rich and crystal-poor magmas. We here discuss the different degrees of interaction between the two magmas in the three explosions in terms of magma dynamics during small-scale paroxysms.
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