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The role of magma mixing in triggering the current eruption at the Soufriere Hills Volcano, Montserrat, West Indies
Author(s) -
Murphy M. D.,
Sparks R. S. J.,
Barclay J.,
Carroll M. R.,
Lejeune A.M.,
Brewer T. S.,
Macdonald R.,
Black S.,
Young S.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl00713
Subject(s) - andesite , geology , lava , phenocryst , volcano , magma , mafic , basaltic andesite , effusive eruption , lava dome , lateral eruption , strombolian eruption , seismology , geochemistry , explosive eruption , volcanic rock
The andesite lava currently erupting at the Soufriere Hills volcano, Montserrat, contains ubiquitous mafic inclusions which show evidence of having been molten when incorporated into the andesite. The andesite phenocrysts have a range of textures and zonation patterns which suggest that non‐uniform reheating of the magma occurred shortly before the current eruption. Reheating resulted in remobilisation of the resident magma and may have induced eruption.