@article{fdi:010035652,
  title = {{H}eating {F}e oxide-rich soils increases the dissolution rate of metals},
  author = {{P}errier, {N}icolas and {G}ilkes, {R}. {J}. and {C}olin, {F}abrice},
  editor = {},
  language = {{ENG}},
  abstract = {{E}vidence for fire affecting the solubility of metals in {F}e oxide-rich {O}xisols of the {K}oniambo {M}assif of {N}ew {C}aledonia is presented. {A}cid-dissolution studies showed that {N}i, {A}l and {C}r are substituted for {F}e in the structure of the {F}e oxides. {T}hermal dehydroxylation of goethite under oxidizing conditions led to the formation of hematite and to the migration of some of these metals towards the {S}urface of hematite crystals as indicated by their enhanced release during the early stage of dissolution. {D}ehydroxylation of goethite under reducing conditions led to the formation of hematite and maghemite. {N}ickel and {A}l were released preferentially during the early stages of dissolution whereas {C}r was not released preferentially and may be uniformly incorporated within maghemite and hematite crystals. {T}hese results have significance to the mineral-processing industry, to geochemical exploration and to the availability of these metals to plants growing on burnt soils.},
  keywords = {goethite ; maghemite ; hematite ; dehydroxylation acid dissolution ; lateritic ore ; {N}ew {C}aledonia},
  booktitle = {},
  journal = {{C}lays and {C}lay {M}inerals},
  volume = {54},
  numero = {2},
  pages = {165--175},
  ISSN = {0009-8604},
  year = {2006},
  DOI = {10.1346/{CCMN}.2006.0540203},
  URL = {https://www.documentation.ird.fr/hor/fdi:010035652},
}