A5000083376- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Geophysical and Geoelectrical Methods
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geological and Geophysical Studies Worldwide
- Geological formations and processes
- Seismic Waves and Analysis
- Earthquake Detection and Analysis
- Geomagnetism and Paleomagnetism Studies
- Astrophysics and Cosmic Phenomena
- Geophysical Methods and Applications
- Planetary Science and Exploration
- High-pressure geophysics and materials
- Landslides and related hazards
- Particle Detector Development and Performance
- Geophysics and Gravity Measurements
- Particle physics theoretical and experimental studies
- Seismology and Earthquake Studies
- Caribbean and African Literature and Culture
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- CO2 Sequestration and Geologic Interactions
- Maritime and Coastal Archaeology
- Historical Geography and Geographical Thought
Laboratoire Magmas et Volcans
2011-2024
Centre National de la Recherche Scientifique
2008-2024
Institut de Recherche pour le Développement
2012-2024
Université Clermont Auvergne
1998-2024
Observatoire de Physique du Globe de Clermont-Ferrand
1988-2015
Centre National pour la Recherche Scientifique et Technique (CNRST)
2013
Institut National de Physique Nucléaire et de Physique des Particules
2012
Institut de physique du globe de Paris
1989
Université Paris Cité
1989
Abstract. High-energy (above a few hundred GeV) atmospheric muons are natural probe for geophysical studies. They can travel through kilometres of rock allowing radiography the density distribution within large structures, like mountains or volcanoes. A collaboration between volcanologists, astroparticle and particle physicists, Tomuvol was formed in 2009 to study tomographic muon imaging volcanoes with high-resolution, large-scale tracking detectors. We report on two campaigns measurements...
Abstract The muographic imaging of volcanoes relies on the measured transmittance atmospheric muon flux through target. An important bias affecting result comes from background contamination mimicking a higher transmittance. MU‐RAY and TOMUVOL collaborations independently in 2013 transmitted Puy de Dôme volcano using their early prototype detectors, based plastic scintillators Glass Resistive Plate Chambers, respectively. These detectors had three (MU‐RAY) or four (TOMUVOL) detection layers...
Recent studies have shown that hydrothermal alteration in the core of volcanoes may weaken edifice and trigger sector collapse [ Lopez Williams , 1993 ; Day 1996 Voight Elsworth 1997 van Wyk de Vries et al. 2000 Reid 2001 ]. Alteration volcanic products must take place over long periods times before can occur, so this process is considered to be less frequent than failure generated by magmatic intrusion flank spreading. However, acceleration slow occur along one direction as a result weak...
The island of Réunion has been studied using data from airborne and shipborne magnetic surveys. subaerial history spans the last 2.1 million years. Brunhes‐Matuyama geomagnetic reversal enables differentiation volcanic rocks older younger than 0.78 Ma. lower submarine flanks are poorly magnetized interpreted as landslide deposits. core is composed highly rocks. Piton des Neiges volcano mostly Only its western flank central area include thick piles de la Fournaise a normally edifice, but...
A volcaniclastic sedimentary fan extending to water depths of 4000 m is characterized using gravity cores, camera surveys, high‐resolution sonar images, seismic records and bathymetry from the submarine portion La Fournaise volcano, Réunion Island, a basaltic shield volcano in SW Indian Ocean. Three main areas are identified study: (1) proximal 500 depth down 2000 depth; (2) outer 3600 (3) basin beyond depth. Within these three areas, seven distinct environments defined: by volcanic basement...
Abstract. Muon imaging of volcanoes and geological structures in general is actively being developed by several groups the world. It has potential to provide 3-D density distributions with an accuracy a few percent. At this stage development, comparisons established geophysical methods are useful validate method. An experiment been carried out 2011 2012 on large trachytic dome, Puy de Dôme volcano, perform such comparison muon gravimetric tomography 2-D electrical resistivity tomography....