Инд. авторы:	Fedorova E.N., Afanasyev V.P, Pokhilenko N.P.
Заглавие:	Application of synchrotron radiation to the study of the internal structure of natural regular and irregular diamonds
Библ. ссылка:	Fedorova E.N., Afanasyev V.P, Pokhilenko N.P. Application of synchrotron radiation to the study of the internal structure of natural regular and irregular diamonds // Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. - 2011. - Vol.5. - Iss. 6. - P.1032-1037. - ISSN 1027-4510. - EISSN 1819-7094.
Внешние системы:	DOI: 10.1134/S1027451011110061; SCOPUS: 2-s2.0-84155180342;
Реферат:	eng: The internal structure of regular and irregular diamond crystals of the Snap Lake deposit of the Slave province (Canada) is studied using the Laue-SR synchrotron method. The crystals under study were classified into regular and irregular diamonds according to IR spectroscopy data. It is shown that irregular diamonds, in contrast to regular, underwent plastic deformation during the postgrowth period. Plastic deformation by slip or spinel-law twinning is observed for diamonds with insignificant nitrogen concentrations. For most studied crystals with high concentrations of platelets (B' defects), irregular misorientations of local regions of a deformed crystal, such as faults and kinks, are characteristic. The interaction of dislocations formed during plastic deformation, with the dislocations surrounding the platelets, causes destruction of the latter at high P-T parameters typical of the upper mantle. © 2011 Pleiades Publishing, Ltd.
Ключевые слова:	Economic geology; Synchrotrons; Platelets; Plastic deformation; Dislocations (crystals); Diamonds; Diamond deposits; Crystals; Crystal structure; Upper mantle; Nitrogen concentrations; Misorientations; Local region; Lake deposits; Internal structure; Interaction of dislocations; High concentration; Diamond crystals; Deformed crystals;
Издано:	2011
Физ. характеристика:	с.1032-1037