Surface oxidation studies of chalcopyrite and pyrite by glancing-angle x-ray absorption spectroscopy (REFLEXAFS)

The oxidation of chalcopyrite and pyrite was examined using Fe-K- and Cu-K-edge REFLEXAFS spectroscopy. The Fe XANES of the pyrite proved to be a very sensitive indicator of oxidation, revealing the development of a goethite-like surface species; the EXAFS data showed an increasing O:S ratio with th...

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Veröffentlicht in:	Mineralogical magazine 1999-08, Vol.63 (4), p.559-566
Hauptverfasser:	England, K. E. R, Charnock, J. M, Pattrick, R. A. D, Vaughan, D. J
Format:	Artikel
Sprache:	eng
Schlagworte:	chalcopyrite crystal structure EXAFS Mineralogy nonsilicates oxidation pyrite REFLEXAFS spectra sulfides surface oxidation X-ray spectra XANES
Online-Zugang:	Volltext
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