Инд. авторы:	Grakhanov S.A., Zinchuk N.N., Sobolev N.V.
Заглавие:	The age of predictable primary diamond sources in the northeastern Siberian Platform
Библ. ссылка:	Grakhanov S.A., Zinchuk N.N., Sobolev N.V. The age of predictable primary diamond sources in the northeastern Siberian Platform // Doklady Earth Sciences. - 2015. - Vol.465. - Iss. 2. - P.1297-1301. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X15120193; SCOPUS: 2-s2.0-84953339236; WoS: 000368182900020;
Реферат:	eng: The U–Pb (SHRIMP) age was determined for zircons collected from 26 observation and sampling sites of diamonds and index minerals in the northeastern Siberian Platform. This part of the region hosts 15 low-diamondiferous Paleozoic and Mesozoic kimberlite fields, excluding the near economic Triassic Malokuonapskaya pipe in the Kuranakh field. Four epochs of kimberlite formation (Silurian, Late Devonian to Early Carboniferous, Middle to Late Triassic, and Middle to Late Jurassic) of the Siberian Platform, including its northeastern part, are confirmed as a result of our studies. Most observation points, including economic Quaternary diamond placers, contain Middle to Late Triassic zircons, which confirms the abundant Late Triassic volcanism in this region. The positive correlation of diamonds and major index minerals of kimberlites (mostly, garnets) at some observation sites indicates the possible Triassic age of the predictable diamondiferous kimberlites. © 2015, Pleiades Publishing, Ltd.
Ключевые слова:	Diamonds; Siberian platform; Sampling site; Positive correlations; Observation point; Major index; Late Triassic; Late Jurassic; Late Devonian; Volcanic rocks; Minerals; Lead; Geochronology; Diamond deposits;
Издано:	2015
Физ. характеристика:	с.1297-1301