@article{fdi:010057161,
  title = {{L}ate {Q}uaternary geomorphologic evolution of submarine canyons as a marker of active deformation on convergent margins : the example of the {S}outh {C}olombian margin},
  author = {{R}atzov, {G}. and {S}osson, {M}. and {C}ollot, {J}ean-{Y}ves and {M}igeon, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he morphology of {P}atia and {M}ira canyons on the {S}outh {C}olombian convergent margin reflects an interplay between tectonic deformation, sea-level variation and canyon evolution, and provides new insight into the age and location of margin deformation over the last similar to 150 ka. {M}ultibeam bathymetry, seismic, and sedimentary data reveal that tectonically active structural highs control canyon incision and the canyon's course. {T}he canyons developed across the margin in five major stages. {F}irst, the upper slope was incised by headward and downward erosion during the {P}leistocene, infilling a structurally bounded slope basin. {T}he basin periodically spilled over and breached the accretionary prism at similar to 150 ka, leading to the development of isolated sediment lobes in the trench. {T}he prism was efficiently breached leading to a well-developed trench channel-levee system at 53-67 ka. {T}oday, the system shows limited activity. {A}ntecedent streams, convex-up axial incision profiles, and increasing height/width ratio indicate an active uplift of the structural highs since at least similar to 150 ka and support localized shortening through the margin accommodated by out-of-sequence structures thrusts and folds. {A}n 80 m-high scarp where the canyon crosses a fault on the middle slope further supports active uplift related to a major thrust. {P}revious seismostratigraphic studies of the margin have demonstrated that active uplift occurred during the {E}arly {P}liocene; here we demonstrate that uplift continued throughout the {L}ate {P}leistocene. {C}omparisons with canyons on other convergent margins reveal that features relating to margin deformation and canyon age (tortuous path, convex-up profiles, abandoned canyon paths, overincision, abrupt canyon turns) are generally restricted to accretionary margins. {B}ecause of their complex morphology, accretionary margins appear more favorable for the occurrence of such features than margins undergoing tectonic erosion with more simple morphology.},
  keywords = {submarine canyon ; convergent margins ; active tectonics},
  booktitle = {},
  journal = {{M}arine {G}eology},
  volume = {315},
  numero = {},
  pages = {77--97},
  ISSN = {0025-3227},
  year = {2012},
  DOI = {10.1016/j.margeo.2012.05.005},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057161},
}