Alteration‐induced volcano instability at la Soufrière de Guadeloupe (eastern Caribbean)

MJ Heap, TS Baumann… - Journal of …, 2021 - Wiley Online Library
Volcanoes are unstable structures that deform laterally and frequently experience mass
wasting events. Hydrothermal alteration is often invoked as a mechanism that contributes …

Density muon radiography of La Soufrière of Guadeloupe volcano: comparison with geological, electrical resistivity and gravity data

N Lesparre, D Gibert, J Marteau… - Geophysical Journal …, 2012 - academic.oup.com
Density muon radiography is a new method to determine the average density of geological
bodies by measuring the attenuation produced by rocks on the flux of cosmic muons. We …

Geophysical muon imaging: feasibility and limits

N Lesparre, D Gibert, J Marteau… - Geophysical Journal …, 2010 - academic.oup.com
We study the possibility of muon radiography as a tool to investigate space and time
changes in the internal density distribution inside geological structures. Previous work has …

Volcano electrical tomography unveils edifice collapse hazard linked to hydrothermal system structure and dynamics

M Rosas-Carbajal, JC Komorowski, F Nicollin… - Scientific reports, 2016 - nature.com
Catastrophic collapses of the flanks of stratovolcanoes constitute a major hazard threatening
numerous lives in many countries. Although many such collapses occurred following the …

Groundwater flow and hydrothermal systems within volcanic edifices: Delineation by electric self‐potential and magnetotellurics

K Aizawa, Y Ogawa, T Ishido - Journal of Geophysical …, 2009 - Wiley Online Library
The imaging of hydrothermal systems within volcanoes is critical in evaluating the nature
and likelihood of future volcanic activity and hazard assessment. In this study, we present a …

The 2018 unrest phase at La Soufrière of Guadeloupe (French West Indies) andesitic volcano: Scrutiny of a failed but prodromal phreatic eruption

R Moretti, JC Komorowski, G Ucciani, S Moune… - Journal of Volcanology …, 2020 - Elsevier
After 25 years of gradual increase, volcanic unrest at La Soufrière of Guadeloupe reached
its highest seismic energy level on 27 April 2018, with the largest felt volcano-tectonic (VT) …

3D electrical conductivity tomography of volcanoes

AS Ahmed, A Revil, S Byrdina, A Coperey… - Journal of Volcanology …, 2018 - Elsevier
Electrical conductivity tomography is a well-established galvanometric method for imaging
the subsurface electrical conductivity distribution. We characterize the conductivity …

A new scenario for the last magmatic eruption of La Soufrière of Guadeloupe (Lesser Antilles) in 1530 AD Evidence from stratigraphy radiocarbon dating and …

G Boudon, JC Komorowski, B Villemant… - Journal of Volcanology …, 2008 - Elsevier
La Soufrière of Guadeloupe is a dangerous volcano characterized over the last decade by
moderate seismic and fumarolic unrest. In the last 15,000 years it has experienced phreatic …

The hydrothermal alteration of cooling lava domes

JL Ball, PH Stauffer, ES Calder, GA Valentine - Bulletin of Volcanology, 2015 - Springer
Hydrothermal alteration is a recognized cause of volcanic instability and edifice collapse,
including that of lava domes or dome complexes. Alteration by percolating fluids transforms …

Evidence for a new shallow magma intrusion at La Soufrière of Guadeloupe (Lesser Antilles): insights from long-term geochemical monitoring of halogen-rich …

B Villemant, JC Komorowski, C Dessert… - Journal of Volcanology …, 2014 - Elsevier
More than three decades of geochemical monitoring of hot springs and fumaroles of La
Soufrière of Guadeloupe allows the construction of a working model of the shallow …