@article{fdi:010046114,
  title = {{G}eomorphic evidence for recent uplift of the {F}itzcarrald {A}rch ({P}eru) : a response to the {N}azca {R}idge subduction},
  author = {{R}egard, {V}. and {L}agnous, {R}. and {E}spurt, {N}icolas and {D}arrozes, {J}. and {B}aby, {P}atrice and {R}oddaz, {M}. and {C}alderon, {Y}. and {H}ermoza, {W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he 400 000 km(2)-wide {F}itzcarrald {A}rch constitutes a wide topographic high of the {A}mazon {B}asin against the central {A}ndes. {I}n order to constrain its formation mechanisms and in particular to test its relationships to the {N}azca ridge subduction, a quantitative geomorphology analysis of the {A}rch is performed using hypsometric integrals, elongation and azimuths of 7th- and 5th-order catchments. {T}hey all express a trend from high maturity to low maturity from {NW} towards {SE}. {T}his maturity gradient coupled with the local drainage direction demonstrate that the {F}itzcarrald {A}rch is not a 'classical' alluvial fan, since its apex is located 100 km east to the {S}ubandean {T}hrust {F}ront and the corresponding sedimentary pile is lacking. {N}or is the {A}rch the superficial expression of an inherited transfer zone, because its geomorphic shape is radial and it does not diverge from a symmetry axis; moreover, such a reactivated structure is not found at depth on seismic profiles. {I}n addition, our data show that underlying geomorphic control on catchment initiation and development has progressed from {NW} to {SE}, which in combination with the observation of crustal doming by {E}spurt et al. [{E}spurt, {N}., {B}aby, {P}., {B}russet, {S}., {R}oddaz, {M}., {H}ermoza, {W}., {R}egard, {V}., {A}ntoine, {P}.{O}., {S}alas-{G}ismondi, {R}., {B}olanos, {R}., 2007. {H}ow does the {N}azca {R}idge subduction influence the modern {A}mazonian foreland basin? {G}eology 35, 515-518.] suggests that this relief is caused by the eastward sliding of the buoyant {N}azca ridge beneath the {S}outh {A}merican lithosphere.},
  keywords = {{G}eomorphology ; {H}ypsometry ; {E}longation ; {R}idge subduction ; {N}azca {R}idge ; {A}ndes ; {A}mazonian basin ; {P}eru ; {F}oreland ; {F}orebulge},
  booktitle = {},
  journal = {{G}eomorphology},
  volume = {107},
  numero = {3-4},
  pages = {107--117},
  ISSN = {0169-555{X}},
  year = {2009},
  DOI = {10.1016/j.geomorph.2008.12.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010046114},
}