Инд. авторы:	Bulbak T.A., Shvedenkova S.V.
Заглавие:	Solid solutions of (Mg, Fe2+)-cordierite: Synthesis, water content, and magnetic properties
Библ. ссылка:	Bulbak T.A., Shvedenkova S.V. Solid solutions of (Mg, Fe2+)-cordierite: Synthesis, water content, and magnetic properties // Geochemistry International. - 2011. - Vol.49. - Iss. 4. - P.391-406. - ISSN 0016-7029. - EISSN 1531-8397.
Внешние системы:	DOI: 10.1134/S0016702911020042; SCOPUS: 2-s2.0-79955021154;
Реферат:	eng: The dependence of water concentration in synthetic (Mg, Fe2+)-cordierite on the composition of the solid solution was examined in experiments that lasted for 10 days at = 200-230 MPa, t = 600-700°C, and oxygen fugacity corresponding to the Fe-FeO buffer. Mass spectrometric data indicate that the dependence of water concentration in cordierite on its Fe mole fraction Fe2+/(Fe2+ + Mg) has maxima at compositions with F = 0.2-0.3. IR diffuse reflectance spectroscopic data and data on the structural setting of H2O molecules in the structural channels of alkali-free (Mg, Fe2+)-cordierite indicate that the H-H vector of some H2O molecules (H2O-II) is perpendicular to [001] of the crystal. The dependence of the magnetic properties of synthetic (Mg, Fe2+)-cordierite was studied by static magnetization technique at 5-300 K in an external magnetic field up to 20 kOe in strength. © 2011 Pleiades Publishing, Ltd.
Ключевые слова:	Spectroscopic data; Oxygen fugacity; Mole fraction; Mass spectrometric data; H-vector; External magnetic field; Diffuse reflectance; cordicrite; solid solution; hydrothermal synthesis; Fe mole fraction; diffusion; cordicrite; water content; solid solution; mass spectrometry; Static magnetization; magnetic property; magnetic field; diffusion; cordierite; Hydrothermal synthesis; Water content; Solidification; Solid solutions; Silicate minerals; Oxygen; Magnetic properties; Magnetic fields; Iron oxides; Water concentrations; Structural setting; Structural channels; magnetization;
Издано:	2011
Физ. характеристика:	с.391-406