@article{fdi:010040732,
  title = {{S}egmentation of the {N}azca and {S}outh {A}merican plates along the {E}cuador subduction zone from wide angle seismic profiles},
  author = {{G}ailler, {A}. and {C}harvis, {P}hilippe and {F}lueh, {E}. {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e describe the deep structure of the south {C}olombian-northern {E}cuador convergent margin using travel time inversion of wide-angle seismic data recently collected offshore. {T}he margin appears segmented into three contrasting zones. {I}n the {N}orth {Z}one, affected by four great subduction earthquakes during the 20th century, normal oceanic crust subducts beneath the oceanic {C}retaceous substratum of the margin underlined by seismic velocities as high as 6.0-6.5 km/s. {I}n the {C}entral {Z}one the subducting oceanic crust is over-thickened beneath the {C}arnegie {R}idge. {A} steeper slope and a well-developed, high velocity, {C}retaceous oceanic basement characterizes the margin wedge. {T}his area coincides with a gap in significant subduction earthquake activity. {I}n the {S}outh {Z}one, the subducting oceanic crust is normal. {T}he fore-arc is characterized by large sedimentary basins suggesting significant subsidence. {V}elocities in the margin wedge are significantly lower and denote a different nature or a higher degree of fracturing. {E}ven if the distance between the three profiles exceeds 150 km, the structural segmentation obtained along the {E}cuadorian margin correlates well with the distribution of seismic activity and the neotectonic zonation.},
  keywords = {wide angle seismic data ; traveltime tomography ; {E}cuadorian margin ; subduction zone ; segmentation of active margin ; subduction ; earthquakes},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {260},
  numero = {3-4},
  pages = {444--464},
  ISSN = {0012-821{X}},
  year = {2007},
  DOI = {10.1016/j.epsl.2007.05.045},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040732},
}