@article{fdi:010071032,
  title = {{F}ore-arc seafloor unconformities and geology : insight from 3-{D} seismic geomorphology analysis, {P}eru},
  author = {{C}alv{\`e}s, {G}. and {A}uguy, {C}. and de {L}avaissi{\`e}re, {L}. and {B}russet, {S}. and {C}alderon, {Y}. and {B}aby, {P}atrice},
  editor = {},
  language = {{ENG}},
  abstract = {{N}ew 3-{D} seismic data collected over 4870 km(2) in the 3 degrees 45{S}-12 degrees 30{S} {P}eruvian segment of the {E}ast {P}acific subduction system image seafloor erosional surfaces that can be mapped across the fore-arc basins. {F}ore-arc basins experience various stresses, from their base where basal tectonic erosion acts to the seafloor which is influenced by aerial, shallow, and deep water currents driven by waves or thermohaline oceanic currents. {P}reviously there has been little interest in stresses on the upper layer and there is a lack of documentation of unconformities and the erosive processes in certain bathymetric domains in fore-arc basins. {W}e address this with the study of examples sourced from 3-{D} seismic reflection surveys of the seafloor offshore {P}eru. {U}nconformities occur in two distinctive bathymetric domains associated with the continental shelf and the upper slope of the margin. {I}dentification and characterization of unconformity surfaces yield estimates of the amount of erosion at the modern seafloor that range from 18 to 100%. {R}egional physical oceanography allows us to calibrate potential candidates for these two distinctive domains. {T}he first control on erosion is the dynamics of deep to intermediate oceanic currents related to the {H}umboldt-{P}eru {C}hile water masses, while the second is wave action in the shallower erosional surfaces. {T}his study illustrates the unseen landscape of the fore-arc basins of {S}outh {A}merica and helps to highlight the importance of erosive surficial processes in subduction landscapes.},
  keywords = {fore-arc basin ; seafloor ; 3-{D} seismic reflection ; seismic geomorphology ; discontinuities ; unconformities ; erosion ; {H}umboldt {P}eru-{C}hile current ; {P}eru ; {PEROU} ; {PACIFIQUE} ; {HUMBOLDT} {COURANT}},
  booktitle = {},
  journal = {{G}eochemistry {G}eophysics {G}eosystems},
  volume = {18},
  numero = {8},
  pages = {3062--3077},
  ISSN = {1525-2027},
  year = {2017},
  DOI = {10.1002/2017gc007036},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071032},
}