Convection and degassing of a magmatic system : the case of lava lake at Erebus, Antarctica

• Main Author: Molina Polania Aury, Claudia Indira, Molina Polania
• Other Authors: Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Université d'Orléans, Alain Burgisser
• Format: Doctoral or Postdoctoral Thesis
• Language: French
• Published: HAL CCSD 2012
• Subjects: Magmatic system; Système magmatique; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Crater Lake; Lava Lake; Antarc*; Antarctica; Antarctique*
• Online Access: https://theses.hal.science/tel-00772305; https://theses.hal.science/tel-00772305/document; https://theses.hal.science/tel-00772305/file/claudiaindira.molinapolania_2733_vd.pdf

The observed phenomenon of permanent degassing of the volcano Erebus is accompanied by a cyclic variation of gas composition and level of its crater lake that we proposed to model in the assumption that these fluctuations are caused by the arrival of batch of magma originated at shallow depth, ascen...