Инд. авторы:	Likhanov I.I., Reverdatto V.V.
Заглавие:	The First U-Pb (SHRIMP II) Evidence of the Franklin Tectonic Event at the Western Margin of the Siberian Craton
Библ. ссылка:	Likhanov I.I., Reverdatto V.V. The First U-Pb (SHRIMP II) Evidence of the Franklin Tectonic Event at the Western Margin of the Siberian Craton // Doklady Earth Sciences. - 2019. - Vol.486. - Iss. 2. - P.605-608. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X19060187; SCOPUS: 2-s2.0-85070198700; WoS: 000479089000004;
Реферат:	eng: Geochemical and isotope-geochronological evidence of Late Riphean intraplate magmatism within the Chernorechenskii massif at the western margin of the Siberian Craton has been obtained. These rocks crystallized from high-temperature and water-unsaturated magmas with a high content of alkalis, iron, and most noncoherent elements, which is typical of anorogenic A-type granites of intraplate settings. Their U-Pb age is 723 +/- 6 Ma, coeval to the Franklin rifting event widespread in the north of Laurentia, which is associated with the break-up of Rodinia. The simultaneity of the magmatic activity and concomitant rifting, as well as a similar sequence of analogous tectonothermal events at the Arctic margin of Rodinia, confirms modern paleoreconstructions, suggesting the territorial proximity of Siberia and the cratons of the North Atlantic at that time.
Ключевые слова:	BREAKUP; EVOLUTION; YENISEI RIDGE; MAGMATISM; SETTINGS;
Издано:	2019
Физ. характеристика:	с.605-608