Genesis of a mottled horizon by Fe-depletion within a laterite cover in the Amazon Basin.

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Rosolen, Vania; Lamotte, Mathieu; Boulet, René; Trichet, Jean; Rouer, Olivier; José Melfi, Adolpho;
  • Publisher: Elsevier Masson
  • Related identifiers: doi: 10.1016/S1631-0713(02)01721-2
  • Subject: scanning electron microscopy | plinthic Cambisol | [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry | Brazil | [ SDU.STU.GC ] Sciences of the Universe [physics]/Earth Sciences/Geochemistry | quantitative chemical microprobe | [SDE.MCG]Environmental Sciences/Global Changes | iron | microscopy | [ SDE.MCG ] Environmental Sciences/Global Changes

A mottled horizon in a laterite cover (without any duricrust) was studied by microscopy and quantitative chemical microanalysis. Apart from the voids, light red spots consisting of Fe-rich particles (≈2 μm) are set in clayey plasma. Dark red spots consisted of concentra... View more
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