Accéder directement au contenu
MC

Magdalena Oryaelle Chevrel

80%
Libre accès
5
Documents
Affiliations actuelles
  • 483019
  • 67872
  • 262384
Identifiants chercheurs
  • IdHAL magdalena-oryaelle-chevrel
  • ORCID 0000-0003-1201-5448
  • Google Scholar : https://scholar.google.fr/citations?user=TiSFdwsAAAAJ&hl=fr&oi=ao
Contact

Présentation

My research focuses mostly on linking petrology, chemistry, rheology and morphological characteristics of volcanic landforms. I have developed an expertise in laboratory techniques and more recently I have been developing a unique instrument to measure lava viscosity on active flow field. Through the years, I also have been working on improving our ability to reconstruct the history of past eruptions (i.e. dynamics, ascent rate, flow emplacement etc…) from field observations and rock analyses as well as using numerical modelling. In particular, I have been working on andesitic effusive historical eruptions in Mexico, where I started to focus on the relationship between volcanic environment and population and linking volcanology and archaeology. More recently, my researcher interest has been to develop operational models and techniques to respond to lava flow inundation during eruption. More specifically, I operate a near-real time response protocol to anticipate lava flow trajectory when eruption occurs at Piton de la Fournaise (La Réunion, France). This protocol allows me to model lava flow path, based on evolution of the thermo-rheological properties of lava and fed by satellite and field data. By integrating geographic information systems, the product of this work flow is a hazard map that is shared with authorities and serves as a support for decisions making.

Domaines de recherche

Volcanologie

Publications

"etienne-medard"
Image document

Magma ascent and lava flow field emplacement during the 2018–2021 Fani Maoré deep-submarine eruption insights from lava vesicle textures

Pauline Verdurme , Lucia Gurioli , Oryaëlle Chevrel , Etienne Médard , Carole Berthod
Earth and Planetary Science Letters, 2024, 636, pp.118720. ⟨10.1016/j.epsl.2024.118720⟩
Article dans une revue hal-04555016v1
Image document

Viscosity of crystal-free silicate melts from the active submarine volcanic chain of Mayotte

Pauline Verdurme , Charles Le Losq , Magdalena Oryaëlle Chevrel , Salomé Pannefieu , Etienne Médard
Chemical Geology, In press, 620, pp.121326. ⟨10.1016/j.chemgeo.2023.121326⟩
Article dans une revue hal-03965373v1
Image document

Temporal magmatic evolution of the Fani Maoré submarine eruption 50 km east of Mayotte revealed by in situ sampling and petrological monitoring

Carole Berthod , Jean-Christophe Komorowski , Lucia Gurioli , Etienne Médard , Patrick Bachèlery
Comptes Rendus. Géoscience, 2022, 354 (S2), pp.195-223. ⟨10.5802/crgeos.155⟩
Article dans une revue hal-03957779v1
Image document

Structured elicitation of expert judgement in real-time eruption scenarios: an exercise for Piton de la Fournaise volcano, La Réunion island

Alessandro Tadini , Andrew Harris , Julie Morin , Andrea Bevilacqua , Aline Peltier
Volcanica, 2022, 5 (1), pp.105-131. ⟨10.30909/vol.05.01.105131⟩
Article dans une revue hal-03712658v1
Image document

A comparison of cooling-limited and volume-limited flow systems: Examples from channels in the Piton de la Fournaise April 2007 lava-flow field

Maéva Rhéty , Andrew Harris , Nicolas Villeneuve , Lucia Gurioli , Etienne Médard
Geochemistry, Geophysics, Geosystems, 2017, 18 (9), pp.3270 - 3291. ⟨10.1002/2017GC006839⟩
Article dans une revue hal-01634863v1