Инд. авторы: | Afanasiev V.P., Pokhilenko N.P., Egorova E.O., Lindenblot E.S. |
Заглавие: | The Most Ancient Diamond Crystals of the Siberian Platform |
Библ. ссылка: | Afanasiev V.P., Pokhilenko N.P., Egorova E.O., Lindenblot E.S. The Most Ancient Diamond Crystals of the Siberian Platform // Doklady Earth Sciences. - 2019. - Vol.489. - Iss. 2. - ISSN 1028-334X. - EISSN 1531-8354. |
Внешние системы: | DOI: 10.1134/S1028334X1912016X; SCOPUS: 2-s2.0-85081115950; WoS: 000517066100006; |
Реферат: | eng: Based on a study of diamond grains from placers of the northeastern Siberian Platform, it is shown that certain types of diamonds (rounded dodecahedroids, diamonds of the II and V-VII varieties, according to the classification by Yu.L. Orlov) could have originated from Precambrian sources. "Ancient" diamonds also differ in terms of their sedimentological history: those of varieties V-VII, despite the maximum abrasion resistance, have the maximum degree of rounding, reflecting their more long-term sedimentological history, and, therefore, their ore bodies were likely the most ancient.
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Издано: | 2019 |