Laterites: Concepts, Geology, Morphology, and Chemistry

accumulation zone Al₂O aluminium aluminous analysis Anand anatase Annex Bárdossy & Aleva bauxite bauxite deposits bedrock boehmite Brazil cemented characteristics chemical climate colour composed contain crust CSIRO cuirass Darling Range derived duricrust elements erosion exploration feldspar ferricrete ferruginous saprolite formation formed fragments geochemical geochemistry Geol geological gibbsite goethite grains granite Guyana Shield halloysite hardened hematite horizon IGCP igneous India Interface International iron kaolinite landscape laterite profile lateritic bauxite lateritic duricrust lateritic rocks lateritic weathering Lateritisation Processes lateritoid layer leaching maghemite matrix metamorphic metres mottled zone nickel nodules occur original overlying oxides parent rock particles pisoids pisoliths plinthite present quartz regolith relict residual resulting sample São Paulo saprock saprolite Schellmann secondary sedimentary sediments silica SiO2 smectite Smith soil structure surface Suriname Table term laterite texture thickness tropical true laterite unconsolidated upper variable veins voids weathering front weathering products weathering profile Western Australia Yilgarn Block