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Visible and "invisible" forms of gold and silver in the crystallization products of melts in the Fe–S–Ag–Au system: experimental data : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1134/S1028334X1706006X

Аннотация: The forms of Au and Ag occurrence in the crystallization products of melts in the Fe–S–Ag–Au system depending on the proportions of Fe/S and Ag/Au have been studied at (Fe + S)/(Ag + Au) = 0.1. It is shown that the S-rich systems with S/Fe = 2 contain Au–Ag sulfides and Au–Ag alloys. The systems depleted in S with S/Fe = 1 contain Показать полностьюonly Au–Ag alloys. The results of XPS provide evidence for the sulfide and metallic components of Au and Ag among the crystallization products of melts in the system studied at S/Fe = 2 and a metallic component with S/Fe = 1. According to the data of electron microprobe analysis, the content of “invisible” forms of noble metals in pyrite and pyrrhotite is 0.024 wt % for Au and 0.030 wt % for Ag; the contents of “invisible” Au and Ag in troilites are 0.040 ± 0.013 wt % Au and 0.079 ± 0.016 wt % Ag.

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Издание

Журнал: Doklady Earth Sciences

Выпуск журнала: Т. 474, № 2

Номера страниц: 636-640

ISSN журнала: 1028334X

Место издания: Москва

Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)

Персоны

  • Palyanova G.A. (Novosibirsk State University)
  • Karmanov N.S. (Sobolev Institute of Geology and Mineralogy,Siberian Branch,Russian Academy of Sciences)
  • Kokh K.A. (Novosibirsk State University)
  • Seryotkin Y.V. (Novosibirsk State University)
  • Mikhlin Y.L. (Institute of Chemistry and Chemical Technology,Siberian Branch,Russian Academy of Sciences)

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