@article{fdi:010019822,
  title = {{O}rganisation of the soil mantle in tropical {S}outheastern {B}razil ({S}erra do {M}ar) in relation to landslides processes},
  author = {{F}urian, {S}. and {B}arbi{\'e}ro, {L}aurent and {B}oulet, {R}en{\'e}},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}erra do {M}ar complex in {S}outheastern {B}razil is subject to frequent landslides especially on the {A}tlantic coast. {T}he three-dimensional organisation of the soil was studied in a 56-ha representative catchment. {U}pslope in situ material has developed from the parent rock, and downslope the soil has resulted from landslide processes. {T}he soil mantle upslope is mainly characterised by slowly permeable kaolinitic horizons within a thick gibbsitic weathering horizon. {T}he field and microscopic relationships between the two suggest that the kaolinitic horizon has evolved at the expense of the gibbsitic material. {R}esilication of gibbsite to form kaolinite is postulated in this environment. {T}he kaolinitic horizons are overlain by a microaggregated horizon. {T}he difference in porosity and water movement between these two horizons was estimated by density measurements, mercury porosimetry, image processing and calculation of water retention and shrinkage curves. {T}he results indicate that water is retained briefly within the microaggregated horizon during intensive rainfall. {B}ecause of the the inclination of the kaolinitic horizon, any excess water within it flows laterally downslope and accumulates in the lowest part of the slope. {T}his leads to landslipping, the main process of landform development in the region. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{SOL} ; {CATENA} ; {GLISSEMENT} {DE} {TERRAIN} ; {RISQUE} {NATUREL} ; {KAOLINITE} ; {GIBBSITE} ; {STRUCTURE} {DU} {SOL} ; {POROSITE} ; {AGREGAT} ; {CIRCULATION} {DE} {L}'{EAU} ; {DENSITE} ; {HORIZON} ; {ETUDE} {REGIONALE} ; {BRESIL} {SUDESTE} ; {AMAZONIE} ; {ZONE} {TROPICALE} ; {SERRA} {DO} {MAR}},
  booktitle = {},
  journal = {{C}atena},
  volume = {38},
  numero = {1},
  pages = {65--83},
  ISSN = {0341-8162},
  year = {1999},
  DOI = {10.1016/{S}0341-8162(99)00015-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010019822},
}