Abstract
The internal structure, iron and manganese distributions of Fe-Mn nodules from imperfectly drained soils of central Greece were studied by scanning electron microscopy (SEM) and elemental analysis. Nodules exhibited a differentiated structure with discontinuous concentric rings as expression of their redox history. Fe and Mn have shown distinct repartition and were distributed mainly in concentric bands. The microstructure and the arrangement of iron—manganese compounds reflect the periodical development and the relative slow accretion rates of the studied nodules. These properties provide ample opportunity for adsorption and isolation of heavy metals from the soil system.
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Acknowledgements
The authors wish to thank Mr. M. Sakalis for his technical assistance in relation to the SEM study. D. Gasparatos is grateful to the Greek State Scholarships Foundation (I.K.Y) for the financial support.
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Gasparatos, D., Tarenidis, D., Haidouti, C. et al. Microscopic structure of soil Fe-Mn nodules: environmental implication. Environ Chem Lett 2, 175–178 (2005). https://doi.org/10.1007/s10311-004-0092-5
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DOI: https://doi.org/10.1007/s10311-004-0092-5