@article{fdi:010061393,
  title = {{G}rain size-dependent {B}e-10 concentrations in alluvial stream sediment of the {H}uasco {V}alley, a semi-arid {A}ndes region},
  author = {{A}guilar, {G}. and {C}arretier, {S}{\'e}bastien and {R}egard, {V}. and {V}assallo, {R}. and {R}iquelme, {R}. and {M}artinod, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}errestrial cosmogenic nuclide concentrations in sediment are used to quantify mean denudation rates in catchments. {T}his article explores the differences between the {B}e-10 concentration in fine (sand) and in coarse (1-3 or 5-10 cm pebbles) river sediment. {S}and and pebbles were sampled at four locations in the {H}uasco {V}alley, in the arid {C}hilean {A}ndes. {S}and has {B}e-10 concentrations between 4.8 and 8.3.10(5) at g(-1), while pebbles have smaller concentrations between 2.2 and 3.3.10(5) at g(-1). {I}t appears that the different concentrations, systematically measured between sand and pebbles, are the result of different denudation rates, linked with the geomorphologic processes that originated them. {W}e propose that the {B}e-10 concentrations in sand are determined by the mean denudation rate of all of the geomorphologic processes taking place in the catchment, including debris flow processes as well as slower processes such as hill slope diffusion. {I}n contrast, the concentrations in pebbles are probably related to debris flows occurring in steep slopes. {T}he mean denudation rates calculated in the catchment are between 30 and 50 m/{M}yr, while the denudation rates associated with debris flow are between 59 and 81 m/{M}yr. {T}hese denudation rates are consistent with those calculated using different methods, such as measuring eroded volumes.},
  keywords = {{T}errestrial cosmogenic nuclide ; {B}e-10 concentrations ; {D}enudation rates ; {C}hilean {A}ndes ; {D}ebris flow ; {ANDES} ; {CHILI}},
  booktitle = {},
  journal = {{Q}uaternary {G}eochronology},
  volume = {19},
  numero = {{SI}},
  pages = {163--172},
  ISSN = {1871-1014},
  year = {2014},
  DOI = {10.1016/j.quageo.2013.01.011},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061393},
}