@article{fdi:010074842,
  title = {{C}rustal-scale convection and diapiric upwelling of a partially molten orogenic root ({N}axos dome, {G}reece)},
  author = {{V}anderhaeghe, {O}. and {K}ruckenberg, {S}. {C}. and {G}erbault, {M}uriel and {M}artin, {L}. and {D}uch{\^e}ne, {S}. and {D}elonle, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he goal of this paper is to use the structural, metamorphic and geochronological record from the migmatitic core of the {N}axos dome ({G}reece) and its associated subdomes to address the internal dynamics of a partially molten orogenic root. {U}-{P}b ages from ca. 24 to 16 {M}a and textures of zircon in the migmatites suggest successive dissolution and precipitation cycles with a period of 1 to 2 {M}a, interpreted as the timescale of convective instabilities in a ca. 20 km thick partially molten layer. {D}imensional analysis indicates that convection of this root requires a viscosity lower than 10(18) {P}as, consistent with viscosity values expected for partially molten felsic rocks. {S}tructural analysis and {U}-{P}b geochronology of deformed granitic dikes rooting in the migmatites record the subsequent development of the {N}axos dome by diapirism from ca. 16 to 13 {M}a. {T}he size of the first order migmatite dome on {N}axos (5 x 12 km) requires that the unstable layer at the onset of diapirism was 5 to 10 km thick and presented a moderate viscosity contrast with its envelope. {F}rom this analysis we propose that the {N}axos migmatite dome documents a two stage dynamic evolution for the partially molten root of the {A}egean belt characterized by (1) crustal scale convection for at least 8 {M}a and (2) diapirism for about 3 {M}a during progressive thinning of the collapsing orogenic crust.},
  keywords = {{N}axos dome ; {C}yclades ; {G}eology ; {M}igmatites ; {U}-{P}b geochronology ; {Z}ircon ; {M}onazite ; {C}rustal-scale convection ; {D}iapirism ; {GRECE} ; {NAXOS}},
  booktitle = {{U}nderstanding geological processes through modelling : a memorial volume honouring {E}vgenii {B}urov},
  journal = {{T}ectonophysics},
  volume = {746},
  numero = {{S}pecial {I}ssue},
  pages = {459--469},
  ISSN = {0040-1951},
  year = {2018},
  DOI = {10.1016/j.tecto.2018.03.007},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074842},
}