@article{fdi:010037621,
  title = {{R}apid {FTIR} sensing of volcanic gases released by {S}trombolian explosions at {Y}asur volcano, {V}anuatu},
  author = {{O}ppenheimer, {C}. and {B}ani, {P}hilipson and {C}alkins, {J}. {A}. and {B}urton, {M}. {R}. and {S}awyer, {G}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e report here the results of a field campaign in which a portable {F}ourier transform infrared ({FTIR}) spectrometer was used to measure gas emissions from {Y}asur volcano, {V}anuatu, in {J}anuary 2005. {B}y collecting {FTIR} spectra at a high rate (about 1 {H}z), we were able to observe a marked difference in the proportions of {SO}2 and {HC}l in emissions released during {S}trombolian eruptions ({SO}2/{HC}l molar ratio up to similar to 30 or more) compared with the intervening passive emissions discharged from the magmatic vent ({SO}2/{HC}l similar to 2). {T}his contrast can be explained by sourcing gas at different depths with respect to levels at which {SO}2 and {HC}l exsolve from the melt: deeper volatile exsolution supplies relatively {SO}2-rich gas responsible for the ephemeral explosions at the top of the conduit; while degassing of shallow magma, depleted in sulfur but rich in chlorine, contributes to the passive emission.},
  keywords = {},
  booktitle = {},
  journal = {{A}pplied {P}hysics {B} {L}asers and {O}ptics},
  volume = {85},
  numero = {2-3},
  pages = {453--460},
  ISSN = {0946-2171},
  year = {2006},
  DOI = {10.1007/s00340-006-2353-4},
  URL = {https://www.documentation.ird.fr/hor/fdi:010037621},
}