@article{fdi:010087628,
  title = {{R}e-evaluation of the role of volatiles in the rupture of magma chambers and the triggering of crystal-rich eruptions},
  author = {{A}nnen, {C}. and {P}inel, {V}irginie and {B}urgisser, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he role of volatile exsolution in triggering volcanic eruption is re-evaluated using numerical simulations of a growing and solidifying magma chamber. {T}he modelled magma chamber is silicic, emplaced at about 2 {K}bar, and {H}2{O}-saturated. {T}he rate of volume additions to the chamber by the release of volatiles is controlled by cooling and solidification and is significantly lower than magma infilling rates. {T}hus, the increase in volume due to volatile exsolution is unlikely to be the primary cause of magma chamber failure unless the magma chamber is already on the brink of failure. {H}owever, the formation of buoyant {H}2{O} rich layers within the mush that sur-rounds the magma chamber makes the system gravitationally unstable. {I}f the host rock is not permeable and volatiles accumulate, their buoyancy might overcome the strength of the wall resulting in dyke injection and possibly an eruption. {E}ruptions that are triggered or facilitated by volatiles exsolution are associated to the presence of mush in the chamber and are expected to be crystal-rich. {T}riggering of eruption by volatiles buoyancy explains the common occurrence of large ranges of crystals ages and protracted crystal residence times at low temperature.},
  keywords = {{M}agma chamber failure ; {V}olatiles exsolution ; {B}uoyancy ; {M}ush eruption},
  booktitle = {},
  journal = {{J}ournal of {V}olcanology and {G}eothermal {R}esearch},
  volume = {435},
  numero = {},
  pages = {107755 [16 p.]},
  ISSN = {0377-0273},
  year = {2023},
  DOI = {10.1016/j.jvolgeores.2023.107755},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087628},
}