Инд. авторы:	Vrublevskii V.V., Reverdatto V.V., Izokh A.E., Gertner I.F., Yudin D.S., Tishin P.A.
Заглавие:	Neoproterozoic carbonatite magmatism of the Yenisei Ridge, Central Siberia: 40Ar/39Ar geochronology of the Penchenga rock complex
Библ. ссылка:	Vrublevskii V.V., Reverdatto V.V., Izokh A.E., Gertner I.F., Yudin D.S., Tishin P.A. Neoproterozoic carbonatite magmatism of the Yenisei Ridge, Central Siberia: 40Ar/39Ar geochronology of the Penchenga rock complex // Doklady Earth Sciences. - 2011. - Vol.437. - Iss. 2. - P.443-448. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X11040088; SCOPUS: 2-s2.0-79957930781;
Реферат:	eng: 40Ar/39Ar isotopic ages of magnesioarfvedsonite (725.9 ± 6.3 myr) and phlogopite (637.6 ± 5.7 myr) from carbonatites of the Penchenga rock complex located in the South Trans Angara segment of the Yenisei Ridge have been determined. Based on this, the formation of the rock complex is associated with the start of the period of Neoproterozoic (725-700 Ma) rifting and alkaline magmatism in the region, the latter being associated with the former. The appearance of zones penetrable for magma of the 'disseminated' rifting type is associated with the development of late collision shear dislocations in a consolidated marginal continental crust. The primary melts had a plume nature, but matter from different mantle sources intermixed in the environment of the changing geodynamic regime. The younger age of the mica was apparently caused by partial remelting of carbonatites under the influence of heat and fluids generated during the formation of the adjacent large granite massif of a younger age. © 2011 Pleiades Publishing, Ltd.
Ключевые слова:	Proterozoic; rifting; Krasnoyarsk [Russian Federation]; Yenisei Ridge; Russian Federation; magmatism; magma; isotopic analysis; granite; geodynamics; geochronology; continental crust; carbonatite; argon-argon dating; partial melting; Tectonics; Mica; SIBERIA; Shear dislocation; Partial remelting; Neoproterozoic; Mantle source; Magmatisms; Late collisions; Isotopic age; Granite massif; Continental crusts; Carbonatites; Geochronology;
Издано:	2011
Физ. характеристика:	с.443-448