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57Fe Mössbauer investigation of naturally oxidised chlorite

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Abstract

The green chlorite, occurring as monomineralic mass in the Sukinda (India) area has been investigated by57Fe Mössbauer spectroscopy together with IR, XRD and XRF analyses. The Mössbauer spectra (at RT and 100 K), split into four symmetric doublets, show hyperfine parameters suggesting Fe2+ atcis and brucite sites and Fe3+ attrans andcis sites. The results show that susceptibility to oxidation (Fe2+→Fe3+) is highest in thetrans site, moderate in thecis site, and least in the brucite site.

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Authors and Affiliations

  1. Department of Geological Sciences, Jadavpur University, 700 032, Calcutta, India

    Tapan Pal

  2. Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, 700 032, Calcutta, India

    Dipankar Das

  3. Bayerisches Geoinstitut, D-8580, Bayreuth, Germany

    Sachinath Mitra

Authors
  1. Tapan Pal
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  2. Dipankar Das
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  3. Sachinath Mitra
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Pal, T., Das, D. & Mitra, S. 57Fe Mössbauer investigation of naturally oxidised chlorite. Hyperfine Interact 73, 313–321 (1992). https://doi.org/10.1007/BF02418606

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  • DOI: https://doi.org/10.1007/BF02418606

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