Triggering explosive eruptions-The case for silicic magma recharge at Huaynaputina, southern Peru

Shanaka de Silva, Guido Edgard Salas Álvarez, Steven Schubring

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Recharge by mafic magma is established as a trigger of major explosive volcanic eruptions. However, recharge by silicic magma can also induce perched resident magma to erupt The evidence of such recharge may be more cryptic than for matic recharge and requires detailed petrologic and geochemical study to identify. We present a study of plagioclase petrology supported by other data that implicates silicic-silicie magma interaction during the eruption and evolution of the A.D. 1600 eruption of Huaynaputina, one of the largest historical eruptions. Recharge by silicic magma is probably more common than recognized and should be considered an important eruption trigger.

Original languageEnglish
Pages (from-to)387-390
Number of pages4
JournalGeology
Volume36
Issue number5
DOIs
StatePublished - May 2008
Externally publishedYes

Keywords

  • Crystal mush
  • Eruption trigger
  • Huaynaputina
  • Magma mingling
  • Silicic recharge

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