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STUDY OF THE COMPARATIVE EFFECT OF HIGH PRESSURES H2 and Ar (up to 400 MPa) on THE VISCOSITY of ALBITE and ANDESITE MELTS at TEMPERATURES of 1200-1400 oCстатья
- Авторы: Bukhtiyarov P.G., Persikov E.S.
- Журнал: Experiments in Geosciences
- Том: 27
- Номер: 1
- Год издания: 2021
- Первая страница: 140
- Последняя страница: 143
- Аннотация: Experimental data on the effect of high hydrogen pressures on the viscosity of magmatic melts are practically absent. This paper presents the results of studying the temperature and pressure dependences of the viscosity of albite and andesite melts at hydrogen and argon pressures of 400 MPa in the temperature range of 1200 -1400 oC. It is established that the temperature dependence of the viscosity of albite and andesite melts under the pressure of hydrogen and argon is quite correctly described by the well—known theoretical Arrhenius-Frenkel-Eyring equation. For the first time, reliable values of the activation energies of the viscous flow of albite and andesite melts at high pressures of hydrogen were obtained. It is shown that the viscosity of the studied melts decreases linearly under isothermal conditions with an increase the pressure of argon and hydrogen.
- Добавил в систему: Бухтияров Павел Гаврилович