@article{fdi:010061953,
  title = {{C}ointrusive shear displacement by sill intrusion in a detachment : a numerical approach},
  author = {{C}haput, {M}. and {P}inel, {V}irginie and {F}amin, {V}. and {M}ichon, {L}. and {F}roger, {J}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}heared sills are observed at {P}iton des {N}eiges (the eroded basaltic volcano of {L}a {R}eunion) and are a suspected cause of the coeruptive flank displacement of {P}iton de la {F}ournaise in 2007. {W}e performed a 2-{D} numerical study to quantify the perturbation induced by sill injection within a volcanic edifice. {M}agma is considered as an inviscid and pressurized fluid injected in an initially stable edifice under gravity-controlled extension. {T}wo cases of injection are tested, in an elastic homogeneous edifice or along a detachment controlled by a friction law. {W}e show that sill injection induces tangential displacements. {T}his effect is strongly increased when sills are emplaced along a detachment, producing extension behind the injection and potentially ending in a large-scale flank collapse. {S}ill injections can thus explain the cointrusive shear deformation observed at {P}iton des {N}eiges and the tangential displacements measured at {P}iton de la {F}ournaise in 2007.},
  keywords = {sill ; detachment ; flank sliding ; {L}a {R}eunion ; numerical modeling ; {REUNION}},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {41},
  numero = {6},
  pages = {1937--1943},
  ISSN = {0094-8276},
  year = {2014},
  DOI = {10.1002/2013gl058813},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061953},
}