Инд. авторы:	Palchik N.A., Moroz T.N., Grigorieva T.N., Nikandrova N.K., Miroshnichenko L.V.
Заглавие:	Crystal-chemical characteristics of nontronites from bottom sediments of Pacific ocean
Библ. ссылка:	Palchik N.A., Moroz T.N., Grigorieva T.N., Nikandrova N.K., Miroshnichenko L.V. Crystal-chemical characteristics of nontronites from bottom sediments of Pacific ocean // Crystallography Reports. - 2017. - Vol.62. - Iss. 1. - P.91-96. - ISSN 1063-7745. - EISSN 1562-689X.
Внешние системы:	DOI: 10.1134/S1063774517010163; SCOPUS: 2-s2.0-85013638912; WoS: 000395057900012;
Реферат:	eng: A crystal-chemical analysis of the nontronite samples formed in deep-water sediments of the underwater Juan-de-Fuca ridge in the Pacific ocean has been performed using powder X-ray diffraction, IR spectroscopy, and Mössbauer spectroscopy. A comparison with the previously investigated nontronites from different regions of the Sea of Okhotsk showed that the structural features of these formations are due to the difference in the physicochemical parameters of their crystallization. The values of the basal interplanar spacing d001 (within 11–13 Å) in the samples analyzed are determined by the degree of hydration and cation filling of the interlayer space, while the differences in the IR spectra are due to isomorphic substitutions in the structure. The character of cation distribution and the nature and concentration of stacking faults in nontronite structures are determined. The differences in the composition, structure, and properties of nontronites of different origin are confirmed by theoretical calculations of their structural parameters. © 2017, Pleiades Publishing, Inc.
Ключевые слова:	Oceanography; Theoretical calculations; Ssbauer spectroscopies; Powder X ray diffraction; Physicochemical parameters; Isomorphic substitution; Crystal chemical analysis; Chemical characteristic; Cation distributions; X ray diffraction; Stacking faults; Positive ions; Chemical analysis;
Издано:	2017
Физ. характеристика:	с.91-96