@article{PAR00006602,
  title = {{T}ranscrystalline melt migration in clinopyroxene},
  author = {{S}onzogni, {Y}. and {P}rovost, {A}. and {S}chiano, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{G}lass inclusions in clinopyroxene phenocrysts from {L}a {S}ommata ({V}ulcano {I}sland, {A}eolian {A}rc) were reheated and submitted to a sustained thermal gradient. {E}ach remelted inclusion undergoes a transient textural and chemical reequilibration and concomitantly begins to migrate along a crystallographic direction, at a small angle with the thermal gradient. {T}he completion of morphological evolution requires a characteristic time that is governed by chemical diffusion. {C}hemical reequilibration results in the formation of a colored halo that delineates the former location and shape of the inclusion after it has migrated away. {T}ranscrystalline migration proceeds by dissolution of the host clinopyroxene ahead and precipitation astern. {I}ts rate is not limited by {F}ick's law, but by the crystal-melt interface kinetics. {C}linopyroxene dissolution and growth are slower than for olivine in similar conditions but obey the same analytical law, which can be transposed to equally or more sluggish melting or crystallization events in nature. {W}hen a gas bubble is initially present, it responds to elastic forces by quickly shifting toward the cold end of the inclusion, where it soon becomes engulfed as an isolated fluid inclusion in the reprecipitated crystal. {T}his study confirms that transcrystalline melt migration, beside its possible implications for small-scale melt segregation and fluid-inclusion generation in the {E}arth's mantle, provides an experimental access to interfacial kinetic laws in near-equilibrium conditions.},
  keywords = {{M}elt inclusions ; {T}ranscrystalline migration ; {C}rystal growth ; {C}rystal ; dissolution ; {C}linopyroxene},
  booktitle = {},
  journal = {{C}ontributions to {M}ineralogy and {P}etrology},
  volume = {161},
  numero = {3},
  pages = {497--510},
  ISSN = {0010-7999},
  year = {2011},
  DOI = {10.1007/s00410-010-0545-8},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00006602},
}