@article{fdi:010092122,
  title = {{C}ontrasting physical erosion rates in cratonic catchments : the {O}gooue and {M}bei rivers, {W}estern {C}entral {A}frica [+ {C}orrigendum, 1 p.]},
  author = {{R}egard, {V}. and {C}arretier, {S}{\'e}bastien and {M}oquet, {J}. {S}. and {C}hoy, {S}. and {B}lard, {P}. {H}. and {B}ogning, {S}. and {M}bonda, {A}. {P}. and {M}ambela, {E}. and {P}aiz, {M}. {C}. and {S}{\'e}ranne, {M}. and {C}harreau, {J}. and {R}ouby, {D}. and {B}ouchez, {J}. and {G}aillardet, {J}. and {B}raun, {J}ean-{J}acques and {D}en{\`e}le, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e measured the long-term physical denudation of the {O}gooue {R}iver catchment using {B}e-10 produced in situ by cosmic rays. {T}hese measurements are averaged over 25-200 ka (average 40 ka), depending on the physical denudation rate. {T}he denudation rate of the {O}gooue {R}iver catchment is slow (38 t/km(2)/a, 15 m/{M}a), slightly higher than in {E}quatorial {W}est {A}frica (from {S}enegal to {A}ngola, 26 t/km(2)/a, 10 m/{M}a). {P}hysical denudation and chemical weathering fall within the same order of magnitude. {T}hus, although low, there is substantial chemical weathering compared to physical denudation, that likely contributes over 30 % of the total denudation. {D}enudation rates are spatially variable (from 10 to 60 t/km(2)/a) within the large {O}gooue {R}iver catchment. {O}ver the long term, physical denudation and chemical weathering roughly match, except in the {B}ateke {P}lateaux area, because the plateaus are made up of already weathered detrital material and therefore their modern flux of solutes is very low (similar to 9.5 t/km(2)/a). {T}he spatial distribution is similar to the one described in the work of {M}oquet et al. (2021) on the basis of solute fluxes, i.e. the southern part of the catchment is denuding twice as fast as the northern part. {W}e show here that the whole picture did not vary much since 100 ka, as shown by both methods which give consistent results. {F}aster denudation in the southern part of the catchment may be related to more uplift than in the northern part caused by the southern {A}frican "superswell".},
  keywords = {{C}osmogenic nuclides ; {D}enudation ; {C}hemical weathering ; {C}ratonic areas ; {O}gooue {R}iver ; {GABON} ; {CONGO} ; {GUINEE} {EQUATORIALE} ; {CAMEROUN}},
  booktitle = {},
  journal = {{G}ondwana {R}esearch},
  volume = {138},
  numero = {},
  pages = {192--209 [+ {C}orrigendum, 1 , vol. 140, 2025, p. 158).},
  ISSN = {1342-937{X}},
  year = {2025},
  DOI = {10.1016/j.gr.2024.10.013},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092122},
}