@article{fdi:010068240,
  title = {{P}leistocene uplift, climate and morphological segmentation of the {N}orthern {C}hile coasts (24 degrees {S}-32 degrees {S}) : insights from cosmogenic {B}e-10 dating of paleoshorelines},
  author = {{M}artinod, {J}. and {R}egard, {V}. and {R}iquelme, {R}. and {A}guilar, {G}. and {G}uillaume, {B}. and {C}arretier, {S}{\'e}bastien and {C}ortes-{A}randa, {J}. and {L}eanni, {L}aetitia and {H}{\'e}rail, {G}{\'e}rard},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e present new cosmogenic ({B}e-10) exposure ages obtained on {P}leistocene marine abrasion shore terraces of {N}orthern {C}hile between 24 degrees {S} and 32 degrees {S} in order to evaluate the temporal and spatial variability of uplift rates along the coastal forearc. {B}oth the dispersion of cosmogenic concentrations in samples from the same terrace and data obtained in vertical profiles show that onshore erosion rates, following emergence of paleoshorelines, approached 1 m/{M}yr. {T}herefore, minimum ages calculated without considering onshore erosion may be largely underestimated for {M}iddle {P}leistocene terraces. {T}he elevation of the last interglacial ({MIS}-5) paleoshoreline is generally between 25 and 45 m amsl, suggesting that the entire coast of the study area has been uplifting during the {U}pper {P}leistocene at rates approaching 0.3 mm/yr. {A}vailable ages for {M}iddle {P}leistocene terraces suggest similar uplift rates, except in the {A}ltos de {T}alinay area where uplift may have been accelerated by the activity of the {P}uerto {A}ldea {F}ault. {T}he maximum elevation of {P}leistocene paleoshorelines is generally close to 250 m and there is no higher older {N}eogene marine sediment, which implies that uplift accelerated during the {P}leistocene following a period of coastal stability or subsidence. {W}e observe that the coastal morphology largely depends on the latitudinal climatic variability. {N}orth of 26.75 degrees {S}, the coast is characterized by the presence of a high scarp associated with small and poorly preserved paleoshorelines at its foot. {T}he existence of the coastal scarp in the northern part of the study area is permitted by the hyper-arid climate of the {A}tacama {D}esert. {T}his particular morphology may explain why paleoshorelines evidencing coastal uplift are poorly preserved between 26.75 degrees {S} and 24 degrees {S} despite {U}pper {P}leistocene uplift rates being comparable with those prevailing in the southern part of the study area.},
  keywords = {{A}ndes ; {U}plift ; {C}osmogenic nuclide ; {P}aleoshores ; {T}ectonics ; {C}limate ; {CHILI} ; {ANDES}},
  booktitle = {},
  journal = {{G}eomorphology},
  volume = {274},
  numero = {},
  pages = {78--91},
  ISSN = {0169-555{X}},
  year = {2016},
  DOI = {10.1016/j.geommph.2016.09.010},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068240},
}