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Heated nontronite: Possible relations to the magnetic phase in the Martian soil

  • Geology, Mineralogy, and Archeology
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Abstract

We have modified the iron-containing layer silicate nontronite into a magnetic sample by heat treatment at 900 ‡C for 5 minutes and studied the properties of the sample by Mössbauer spectroscopy, X-ray powder diffraction and infrared spectroscopy. Mössbauer spectra obtained in applied magnetic fields show that the majority of the iron is situated in a ferrimagnetic phase, related to maghemite.

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Authors and Affiliations

  1. Physics and Geophysics, Niels Bohr Institute for Astronomy, Blegdamsvej 17, DK-2100, Copenhagen, Denmark

    S. Faurschou Hviid, D. P. Agerkvist, M. Olsen & M. B. Madsen

  2. Physics Department, Technical University of Denmark, Building 307, DK-2800, Lyngby, Denmark

    C. Bender Koch

Authors
  1. S. Faurschou Hviid
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  2. D. P. Agerkvist
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  3. M. Olsen
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  4. C. Bender Koch
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  5. M. B. Madsen
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Hviid, S.F., Agerkvist, D.P., Olsen, M. et al. Heated nontronite: Possible relations to the magnetic phase in the Martian soil. Hyperfine Interact 91, 529–533 (1994). https://doi.org/10.1007/BF02064565

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  • DOI: https://doi.org/10.1007/BF02064565

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