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Poster

ANR COYOTES project (Comoros & maYotte: vOlcanism, TEctonics and Seismicity)

Isabelle Thinon 1 Anne Lemoine 1 Nathalie Feuillet 2 Sylvie Leroy 3 Laurent Michon 4 Julia Autin 5 Patrick Bachèlery 6 Jean Battaglia 6 Bernard Julien 1 Didier Bertil 1 Pierre Briole 7 Nicolas Chamot-Rooke 7 Valérie Clouard 8 Marcello de Michele 1 Christine Deplus 9 Cecile Doubre 5 Vincent Famin 4 Lucia Gurioli 6 Eric Jacques 2 Stéphan Jorry 10 Alessia Maggi 11 Pauline Le Maire 1 Guillaume Martelet 1 Nicolas Mercury 1 François Nauret 12 Fabien Paquet 1 Aurelie Peyrefitte 1 Xavier Quidelleur 13 Claudio Satriano 2 Jean-Marie Saurel 2 Daniel Sauter 11 Jerome van der Woerd 14 Sébastien Zaragosi 15
1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 IPGP - Institut de Physique du Globe de Paris
3 iSTeP - Institut des Sciences de la Terre de Paris
4 LGSR - Laboratoire GéoSciences Réunion
5 IPGS - Institut de physique du globe de Strasbourg
6 LMV - Laboratoire Magmas et Volcans
7 LGENS - Laboratoire de géologie de l'ENS
8 GET - Géosciences Environnement Toulouse
9 IPGP - Institut de Physique du Globe de Paris
10 GM - Géosciences Marines
11 EOST - Ecole et Observatoire des Sciences de la Terre
12 LMV - Laboratoire Magmas et Volcans
13 GEOPS - Géosciences Paris Saclay
14 ITES - Institut Terre Environnement Strasbourg
15 EPOC - UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux
Abstract : In order to understand the unprecedented underwater telluric event of the Mayotte Seismo-Volcanic (MSV) crisis (2018-2020), it appears essential to reach a critical level of knowledge on the evolution of the seismicity, volcanic activity and geodetic deformation, but also on the geodynamic context. This includes the kinematics and the characterization of the lithospheric and crustal structures, on both short- and long-term and regional and local scales. Towards this goal, the COYOTES project aims to better understand the regional geodynamic and geological context of the north Mozambique Channel. The objectives are to understand the distribution of active and recent deformations around the Comoros Archipelago, in particular the Mayotte Island, to image the crustal structuration and to study the recent tectono-sedimentary evolution. Both the link with the East African rift system and the role of Mesozoic inherited structures in the spatial distribution of present-day deformation associated to the MSV crisis will be investigated. This updated geodynamic and geological knowledge will be used to improve the assessment of the volcanic and seismic hazards. The main work-packages are 1) Current seismic sequence, deformation and kinematics; 2) Recent and active volcanism and tectonics in the Comoros archipelago; 3) Long-term geodynamics: Regional structuration and inheritance. It will integrate new onshore and offshore acquisitions of geological and geophysical data, their interpretation as well as modelling. The COYOTES project (2020-2024) is funded by the French National Research Agency (ANR), involving three thesis, one post-doc and more than 40 scientists from the BRGM, IPGS/EOST, IPGP, IsTep, ENS, La Réunion University, EPOC, Ifremer, SHOM, GEOPS, LMV, GET, ISTO, OVPF, ... (http://www.geocean.net/coyotes/doku.php?id=start). The project is linked with the SISMAORE oceanographic campaign that will occur on the R/V Pourquoi Pas? from December 2020 to February 2021. [@https://agu.confex.com/agu/fm20/webprogram/Paper680395.html]
Keywords : Recent tectonic and volcanic deformation inheritance Comoros archipelago Mozambique Channel Mayotte SISMAORE ANR COYOTES
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Poster
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https://hal-brgm.archives-ouvertes.fr/hal-03250665
Contributeur : Isabelle Thinon Connectez-vous pour contacter le contributeur
Soumis le : vendredi 4 juin 2021 - 18:58:55
Dernière modification le : mardi 17 mai 2022 - 15:12:03

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  • HAL Id : hal-03250665, version 1

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BRGM | UNIV-TLSE3 | ENGEES | PSL | RIGL | AFRIQ | LGSR | OMP-GET | IPGP | GS-GEOSCIENCES | UNIV-ST-ETIENNE | ISTEP | OMP | OPGC | EPHE | FST-REUNION | USPC | CNRS | UDL | PRES_CLERMONT | SITE-ALSACE | INSU | SU-SCIENCES | IRD | ANR | LMV | GEOPS | METEO | UNIV-PARIS | SORBONNE-UNIVERSITE | GS-ENGINEERING | UNIV-PARIS-SACLAY | SU-TI | BRGM-DO | GS-BIOSPHERA

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Isabelle Thinon, Anne Lemoine, Nathalie Feuillet, Sylvie Leroy, Laurent Michon, et al.. ANR COYOTES project (Comoros & maYotte: vOlcanism, TEctonics and Seismicity). AGU Fall Meeting 2020 - Online Everywhere, Dec 2020, Online everywhere, United States. AGU full meeting, 2020. ⟨hal-03250665⟩

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