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Crystal-chemistry of interstratified Mg/Fe-clay minerals from seafloor hydrothermal sites 5
Cuadros, Javier; Michalski, Joseph R.; Dekov, Vesselin; Bishop, Janice; Fiore, Saverio; Dyar, M. Darby.
Seafloor hydrothermal sites generate abundant Mg- and Fe-rich clays. These clays are structurally and compositionally interesting because these environments are characterized by large, dynamic temperature and chemical gradients in their deposition environment, which promote the formation of chemically and structurally complex clays, including interstratified phases. The system is also interesting as a proxy for the study of the large Mg- and Fe-rich phyllosilicate deposits on Mars, which are broadly characterized as smectitic clay of hydrothermal, volcanic or sedimentary origin. Thirty submarine samples and four terrestrial ones, for comparison, were studied by means of X-ray diffraction (XRD), thermogravimetry (TG), mid-IR and Mössbauer spectroscopies and...
Tipo: Text Palavras-chave: Interstratified clays; Martian clays; Submarine hydrothermal sites; Thermogravimetry; XRD.
Ano: 2013 URL:
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