Инд. авторы:	Fedorova E.N., Logvinova A.M., Luk'yanova L.I., Sobolev N.V.
Заглавие:	Typomorphic characteristics of the Ural diamonds (from FTIR spectroscopy data)
Библ. ссылка:	Fedorova E.N., Logvinova A.M., Luk'yanova L.I., Sobolev N.V. Typomorphic characteristics of the Ural diamonds (from FTIR spectroscopy data) // Russian Geology and Geophysics. - 2013. - Vol.54. - Iss. 12. - P.1458-1470. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.1016/j.rgg.2013.10.013; SCOPUS: 2-s2.0-84888169798; WoS: 000327759500004;
Реферат:	eng: Natural diamonds from the Ural alluvial deposits have been studied by FTIR spectroscopy. It is shown that these diamonds are similar in some typomorphic features, such as nitrogen content and aggregation state, to the diamonds of the Coromandel (Brazil) and Verkhnee Molodo (Lena region, Yakutia) placers and to the diamonds from kimberlites of the Arkhangel'sk Region but differ significantly in lower contents of hydrogen and higher contents of platelets. The high contents of hydrogen (5-20 cm-1) determined in some diamonds are due to the specific formation of their internal structure and to the presence of inclusions. The nonuniform distribution of nitrogen A- and B-centers throughout the crystal testifies to the zonal structure of diamonds. The temperature conditions of formation of the Ural diamonds have been estimated. © 2013.
Ключевые слова:	Russian Federation; Brazil; placer deposit; nitrogen; kimberlite; hydrogen; Sakha; diamond; alluvial deposit; Nitrogen; Hydrogen; FTIR spectroscopy; Diamond; FTIR spectroscopy;
Издано:	2013
Физ. характеристика:	с.1458-1470