@article{fdi:010094209,
  title = {{L}ate {P}leistocene thrust tectonics in the north {P}eruvian forearc revealed by {T}errestrial {C}osmogenic {N}uclides surface exposure dating, field structural data and seismic profiles},
  author = {{P}euzin, {A}. and {S}aillard, {M}arianne and {E}spurt, {N}. and {B}raucher, {R}. and {R}{\'e}gnier, {M}arc and {D}uclaux, {G}. and {A}udin, {L}aurence and {L}emgruber-{T}raby, {A}. and {B}ellier, {O}. and {H}ippolyte, {J}. {C}. and {C}alderon, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}recise dating of geomorphic markers that are subject to thrust-related deformation, such as alluvial fan surface are crucial for quantifying forearc deformation, especially in a context of weak interseismic coupling on the subduction interface as in northern {P}eru. {I}n this study, we document the late {P}leistocene tectonic history of the {A}motape massif, which is a prominent basement relief in the northern {P}eruvian forearc. {T}o achieve this, we combine a morphometric analysis and {T}errestrial {C}osmogenic {N}uclides ({TCN}s) surface exposure dating of alluvial fan surface with subsurface structural data. {TCN}s (10{B}e and 26{A}l) surface exposure ages of alluvial fan surfaces on the northwestern flank of the massif range from 35.1 f 1.1 ka to 59.3 f 2.1 ka for 10{B}e and from 27.3 f 2.0 ka to 48.9 f 2.5 ka for 26{A}l. {B}oth cosmogenic nuclides provide consistent results. {W}e calculated a mean weighted age of 39.0 f 0.3 ka for an alluvial fan that is offset by a major {NW}-verging thrust. {O}ur results provide an estimated slip rate of 1.15 f 0.46 m/ka along the {A}motape thrust front since the late {P}leistocene. {T}he surface deformation along the {A}motape thrust front correlates with the top portion of a deep-seated contractional wedge involving the crustal basement, according to subsurface structural data and regional seismicity. {T}his integrated analysis demonstrates active shortening in the onshore crustal basement of the northern {P}eruvian forearc where no active thrust reaching the surface has been described before.},
  keywords = {{B}e-10 and {A}l-26 cosmogenic isotopes ; {A}lluvial fans ; {A}ctive shortening ; morpho-tectonic markers ; {N}orthern {A}ndean forearc ; {PEROU} ; {ANDES}},
  booktitle = {},
  journal = {{T}ectonophysics},
  volume = {910},
  numero = {},
  pages = {230798 [14 ]},
  ISSN = {0040-1951},
  year = {2025},
  DOI = {10.1016/j.tecto.2025.230798},
  URL = {https://www.documentation.ird.fr/hor/fdi:010094209},
}