FN Archimer Export Format
PT J
TI Birth of a large volcanic edifice offshore Mayotte via lithosphere-scale dyke intrusion
BT 
AF Feuillet, Nathalie
   Jorry, Stephan
   Crawford, Wayne C.
   Deplus, Christine
   Thinon, Isabelle
   Jacques, Eric
   Saurel, Jean Marie
   Lemoine, Anne
   Paquet, Fabien
   Satriano, Claudio
   Aiken, Chastity
   Foix, Oceane
   Kowalski, Philippe
   Laurent, Angèle
   Rinnert, Emmanuel
   Cathalot, Cecile
   Donval, Jean-Pierre
   Guyader, Vivien
   Gaillot, Arnaud
   Scalabrin, Carla
   Moreira, Manuel
   Peltier, Aline
   Beauducel, François
   Grandin, Raphaël
   Ballu, Valérie
   Daniel, Romuald
   Pelleau, Pascal
   Gomez, Jérémy
   Besançon, Simon
   Geli, Louis
   Bernard, Pascal
   Bachelery, Patrick
   Fouquet, Yves
   Bertil, Didier
   Lemarchand, Arnaud
   Van der Woerd, Jérome
AS 1:1;2:2;3:1;4:1;5:3;6:1;7:1;8:3;9:3;10:1;11:2;12:1;13:1;14:1;15:2;16:2;17:2;18:2;19:2;20:2;21:1;22:1;23:1,4;24:1;25:5;26:1;27:2;28:1;29:1;30:2;31:1;32:6;33:2;34:3;35:1;36:7;
FF 1:;2:PDG-REM-GM-LGS;3:;4:;5:;6:;7:;8:;9:;10:;11:PDG-REM-GM-LAD;12:;13:;14:;15:PDG-REM-GM-LCG;16:PDG-REM-GM-LCG;17:PDG-REM-GM-LCG;18:PDG-REM-GM-LCG;19:PDG-REM-GM-CTDI;20:PDG-REM-GM-LCG;21:;22:;23:;24:;25:;26:;27:PDG-REM-GM-CTDI;28:;29:;30:PDG-REM-GM-LAD;31:;32:;33:PDG-REM-GM-LCG;34:;35:;36:;
C1 Université de Paris, Institut de physique du globe de Paris, CNRS, Paris, France
   IFREMER, Unité Géosciences Marines, Technopole La Pointe du Diable, Plouzané, France
   Bureau de Recherches Géologiques et Minières—BRGM, DGR/GBS, Orléans, France
   Université Grenoble Alpes, IRD, ISterre, Grenoble, France
   LIttoral ENvironnement et Sociétés (LIENSs) UMR7266, Université de La Rochelle—CNRS, La Rochelle, France
   Université Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, Clermont-Ferrand, France
   Institut de Physique du Globe de Strasbourg UMR7516 CNRS Université de Strasbourg, Strasbourg, France
C2 IPGP, FRANCE
   IFREMER, FRANCE
   BRGM, FRANCE
   UNIV GRENOBLE ALPES, FRANCE
   UNIV LA ROCHELLE, FRANCE
   UNIV CLERMONT AUVERGNE, FRANCE
   IPGP, FRANCE
SI BREST
SE PDG-REM-GM-LGS
   PDG-REM-GM-LAD
   PDG-REM-GM-LCG
   PDG-REM-GM-CTDI
IN WOS Ifremer UPR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 21.531
TC 56
UR https://archimer.ifremer.fr/doc/00718/83007/88250.pdf
   https://archimer.ifremer.fr/doc/00718/83007/88952.pdf
LA English
DT Article
CR MAYOBS
   MAYOBS1
   PTOLEMEE
BO Marion Dufresne
   L'Atalante
AB Volcanic eruptions shape Earth’s surface and provide a window into deep Earth processes. How the primary asthenospheric melts form, pond and ascend through the lithosphere is, however, still poorly understood. Since 10 May 2018, magmatic activity has occurred offshore eastern Mayotte (North Mozambique channel), associated with large surface displacements, very-low-frequency earthquakes and exceptionally deep earthquake swarms. Here we present geophysical and marine data from the MAYOBS1 cruise, which reveal that by May 2019, this activity formed an 820-m-tall, ~5 km³ volcanic edifice on the seafloor. This is the largest active submarine eruption ever documented. Seismic and deformation data indicate that deep (>55 km depth) magma reservoirs were rapidly drained through dykes that intruded the entire lithosphere and that pre-existing subvertical faults in the mantle were reactivated beneath an ancient caldera structure. We locate the new volcanic edifice at the tip of a 50-km-long ridge composed of many other recent edifices and lava flows. This volcanic ridge is an extensional feature inside a wide transtensional boundary that transfers strain between the East African and Madagascar rifts. We propose that the massive eruption originated from hot asthenosphere at the base of a thick, old, damaged lithosphere. 
PY 2021
PD OCT
SO Nature Geoscience
SN 1752-0894
PU Springer Science and Business Media LLC
VL 14
IS 10
UT 000689655300002
BP 787
EP 795
DI 10.1038/s41561-021-00809-x
ID 83007
ER

EF