17–20 avr. 2012
Chapelle des Cordeliers
Fuseau horaire Europe/Paris

Density Muon Radiography of Soufrière of Guadeloupe Volcano: Comparison with Geological, Electrical Resistivity and Gravity data

18 avr. 2012, 14:00
20m
Chapelle des cordeliers

Chapelle des cordeliers

Oral Applications of muon imaging in volcanology; multi-probe structure study of volcanoes Volcanology

Orateur

Prof. Dominique GIBERT (Institut de Physique du Globe de Paris)

Description

We present density radiographies obtained for the Soufrière of Guadeloupe lava dome, both in the North-South and East-West planes. These radiographies reveal the highly heterogeneous density structure of the volcano, with low-density regions corresponding to recognized hydrothermally altered areas. The main structures observed in the density radiographies correlate with anomalies in electrical resistivity cross-sections and density model derived from gravity data

Auteur principal

Prof. Dominique GIBERT (Institut de Physique du Globe de Paris)

Co-auteurs

Dr Florence NICOLLIN (Géosciences Rennes) Dr Jacques MARTEAU (Institut de Physique Nucléaire de Lyon) Prof. Jean-Christophe KOMOROWSKI (Institut de Physique du Globe de Paris) Dr Nolwenn LESPARRE (Systems and Computer Engineering, Carleton University, Ottawa, Canada) Prof. Olivier COUTANT (Institut des Sciences de la Terre, Grenoble)

Documents de présentation