摘要
Guizhouisoneofthedominatingkarstregions,wherelateriteiswidespread,inChina.Seventy-twolateritesamplesweretakenfromtwelvelateritesectionsinthekarstareasofGuizhouProvince,whicharepossessedoftypicalsubtropicalkarstgeomphologicalandecologicalenvironmentalfeaturesandhaveevolvedcompletelyfromdolostonesandlimestones.Intermsofthemajor,traceandREEdetaforthdsamplesthispaperdiscussesthegeochemicalcharacteristicsoflateriteinthekarstareaswithanattempttodisclosethegeochemicalprocessandevolutionaryruleoflateriteformation.Therehavebeeninvolvedthreeimportantpedogeneticgeochemicalprecessesintheformationoflateriteinthekarstareas:(1)enrichmentofsiliconandaluminumanddepletionofcalciumandmagnesium;(2)enrichmentofironandmanganese;and(3)enrichmentofaluminumanddepletionofsilicon.Duringtheformationandevolutionoflaterite,obviousenrichmentanddifferentiationoftraceelementssuchasCu,Pb,Zn,Ni,Co,Cr,Pb,F,Cl,andAscanbeobserved,butfortherare-earthelements,theirenrichmentisremarkableagainstaweakdifferentiation.TheREEdistributionpatternsinthelateritearesimilartothoseofitsparentalcarbonaterocks.
出版日期
1996年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
