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Authors: La Felice, S.*
Landi, P.*
Title: The 2009 paroxysmal explosions at Stromboli (Italy): magma mixing and eruption dynamics
Title of journal: Bulletin of Volcanology
Series/Report no.: 9/73(2011)
Publisher: Springer-Verlag
Issue Date: Nov-2011
DOI: 10.1007/s00445-011-0502-z
Keywords: Stromboli
Glass chemistry
Eruption dynamics
Abstract: Three 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.
Appears in Collections:04.08.03. Magmas
04.08.06. Volcano monitoring
Papers Published / Papers in press

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