Metal-silicate separation in andesite melts interacting with hydrogen (experimental study)

Авторы: Persikov E.S., Bukhtiyarov P.G., Aranovich L.Ya, Nekrasov A.N., Kosova C.A.
Журнал: Experiment in GeoSciences
Том: 28
Номер: 1
Год издания: 2022
Первая страница: 111
Последняя страница: 113
Аннотация: Abstract. It has been established that, despite the high reduction potential of the system H2 - andesite melt, the reactions of hydrogen oxidation and reduction of Fe oxides in the melt do not go to the end. Initially, homogeneous andesite melts become heterogeneous. H2O is formed in the fluid phase (originally pure hydrogen); H2O (0.1 – 0.5 wt.%) dissolves in andesite melts, and small metallic droplets of liquification texture are formed in them at a temperature significantly lower than the melting point of the metal. In our experiments, metal droplets are formed at temperatures below the melting point of iron (~300 °C) at atmospheric pressure. The process of forming a liquid-like structure Fe (mainly small spheres of several microns) due to redox reactions is undoubtedly complex.
Добавил в систему: Бухтияров Павел Гаврилович

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