@article{fdi:010066696,
  title = {{D}istribution of duricrusted bauxites and laterites on the {B}amileke plateau ({W}est {C}ameroon) : constraints from {GIS} mapping and geochemistry},
  author = {{M}omo, {M}. {N}. and {Y}emefack, {M}. and {T}ematio, {P}. and {B}eauvais, {A}nicet and {A}mbrosi, {J}. {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}stimation of the mineral resources potential is an important issue for most of developing countries. {T}he spatial distribution of bauxites and lateritic land surfaces on the {B}amileke plateau ({W}est {C}ameroon) has been investigated with a {B}oolean modeling process into a {GIS} environment on the basis of geological constraints such as elevation, rock and soil types, and landscape morphology. {F}ield observation and {SRTM} ({S}huttle {R}adar {T}opographic {M}ission) data allowed the differentiation of two lateritic land surfaces separated by a minimum altitude difference of about 60 m. {T}hese surfaces constrained by favorable rock types, slope steepness and soil types provided a potential lateritic bauxitic area of 381 km(2) (17.2% of the total study site). {F}ield validation and the integration of legacy spatial data resulted in an area of 60.1 km(2) for potential bauxitic ores, i.e. obviously duricrusted bauxitic surfaces (with 47.8 km(2) in the upper surface and 12.3 km(2) in the lower surface). {A}lumina contents obtained from duricrust samples were analyzed by geostatistical methods and classical kriging interpolation to discriminate between bauxitic and ferruginous laterites. {T}his highlighted a geochemical trend from higher alumina values on the upper surface (40-66 wt.%) to lower values on the lower surface (13-44 wt.%). {F}inally, our study documents two duricrusted lateritic surfaces arranged in a staircase manner and having different geochemical characteristics. {T}he total bauxitic-rich surface is distributed in five spots throughout the study area and covers 56.2 km(2), while ferruginous laterites occupy a spot of 3.9 km(2). {GIS} mapping approach of lateritic land surfaces, accounting for reliable constraints, might be promising for larger scale investigations of mineral resources in {C}ameroon.},
  keywords = {{B}auxite ; {B}oolean modeling ; {K}riging ; {B}amileke plateau ; {C}ameroon ; {CAMEROUN} ; {BAMILEKE} {PLATEAU}},
  booktitle = {},
  journal = {{C}atena},
  volume = {140},
  numero = {},
  pages = {15--23},
  ISSN = {0341-8162},
  year = {2016},
  DOI = {10.1016/j.catena.2016.01.010},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066696},
}