Skip to Main content Skip to Navigation
Conference papers

The zone 1440 AD eruption of the soufriere of Guadeloupe (Lesser Antilles) : an experimental determination of the pre-eruptive consitions of the andesitic magma body.

Abstract : The 1440 AD eruption of the Soufriere of Guadeloupe (Lesser Antilles arc) is characterized by a dramatic change of the chemical composition of erupted products, from andesitic (clear pumices, 61-62 wt% SiO2) to basaltic andesite (dark scoria, 55-56 wt% SiO2). This compositional sequence is interpreted to reflect the tapping of a silicic magma body remobilised following the arrival of a mafic magma batch. The conditions of equilibrium ( T, P, fO2, melt H2O content) within the andesite body prior to the mixing event were determined from a coupled ineralogical/petrological and experimental approach.
Document type :
Conference papers
Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/hal-00078539
Contributor : Nathalie Pothier <>
Submitted on : Wednesday, June 14, 2006 - 3:03:27 PM
Last modification on : Friday, April 5, 2019 - 8:08:24 PM
Long-term archiving on: : Monday, April 5, 2010 - 10:22:35 PM

Identifiers

  • HAL Id : hal-00078539, version 1

Collections

Citation

Stéphane Poussineau, Michel Pichavant, Jean-Louis Bourdier. The zone 1440 AD eruption of the soufriere of Guadeloupe (Lesser Antilles) : an experimental determination of the pre-eruptive consitions of the andesitic magma body.. Geophysical Research Abstracts, 2004, Nice, France. ⟨hal-00078539⟩

Share

Metrics

Record views

159

Files downloads

152