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The role of magma mixing in triggering the current eruption at the Soufriere Hills Volcano, Montserrat, West Indies.

Research output: Contribution to journalJournal article

Published

  • M. D. Murphy
  • R. S. J. Sparks
  • J. Barclay
  • M. R. Carroll
  • A.-M. Lejeune
  • T. S. Brewer
  • Raymond MacDonald
  • Stuart Black
  • S. Young
Journal publication date1998
JournalGeophysical Research Letters
Journal number18
Volume25
Number of pages4
Pages3433-3436
Original languageEnglish

Abstract

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.