@article{fdi:010064454,
  title = {{N}eogene cratonic erosion fluxes and landform evolution processes from regional regolith mapping ({B}urkina {F}aso, {W}est {A}frica)},
  author = {{G}rimaud, {J}.{L}. and {C}hardon, {D}ominique and {M}etelka, {V}. and {B}eauvais, {A}nicet and {B}amba, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he regionally correlated and dated regolith–paleolandform sequence of {S}ub-{S}aharan {W}est {A}frica offers a unique opportunity to constrain continental-scale regolith dynamics as the key part of the sediment routing system. {I}n this study, a regolith mapping protocol is developed and applied at the scale of {S}outhwestern {B}urkina {F}aso. {M}apping combines field survey and remote sensing data to reconstruct the topography of the last pediplain that formed over {W}est {A}frica in the {E}arly and {M}id-{M}iocene (24-11 {M}a). {T}he nature and preservation pattern of the pediplain are controlled by the spatial variation of bedrock lithology and are partitioned among large drainage basins. {Q}uantification of pediplain dissection and drainage growth allows definition of a cratonic background denudation rate of 2 m/{M}y and a minimum characteristic timescale of 20 {M}a for shield resurfacing. {T}hese results may be used to simulate minimum export fluxes of drainage basins of constrained size over geological timescales. {B}ackground cratonic denudation results in a clastic export flux of ~ 4 t/km2/year, which is limited by low denudation efficiency of slope processes and correlatively high regolith storage capacity of tropical shields. {T}hese salient characteristics of shields' surface dynamics would tend to smooth the riverine export fluxes of shields through geological time.},
  keywords = {{CRATON} ; {EROSION} ; {NEOGENE} ; {SEDIMENT} ; {LATERITE} ; {TELEDETECTION} {SPATIALE} ; {CARTOGRAPHIE} ; {GEOMORPHOLOGIE} ; {TOPOGRAPHIE} ; {REGOLITHE} ; {BURKINA} {FASO} ; {HOUNDE} ; {GAOUA}},
  booktitle = {},
  journal = {{G}eomorphology},
  numero = {241},
  pages = {315--330},
  ISSN = {0169-555{X}},
  year = {2015},
  DOI = {10.1016/j.geomorph.2015.04.006},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064454},
}