Инд. авторы:	Likhanov I.I., Reverdatto V.V., Zinov'ev S.V, Nozhkin A.D.
Заглавие:	Age of blastomilonites of the Yenisei regional shear zone as evidence of the Vendian accretionary-collision events at the western margin of the Siberian Craton
Библ. ссылка:	Likhanov I.I., Reverdatto V.V., Zinov'ev S.V, Nozhkin A.D. Age of blastomilonites of the Yenisei regional shear zone as evidence of the Vendian accretionary-collision events at the western margin of the Siberian Craton // Doklady Earth Sciences. - 2013. - Vol.450. - Iss. 1. - P.489-493. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X13050115; SCOPUS: 2-s2.0-84878955209;
Реферат:	eng: The age of the latest impulse of dynamometamorphic structural-compositional transformations (603-615 Ma) was established from the 40Ar- 39Ar age of micas from balstomilonites of the Garevka metamorphic complex of the Yenisei Ridge confined to the Priyenisei shear zone. The age of these tectonic-thermal events marks the final stage of the Neoproterozoic evolution of the Yenisei Ridge related to the accretion of the Isakovka terrane to the western margin of the Siberian Craton. These results are in agreement with the age of metamorphic rocks of northwestern Prisayany, which are incorporated into the Sayany-Yenisei accretionary belt along with Yenisei Ridge. The conformable data on two regions indicate a global Vendian accretionary-collision event, which led to the formation of the Sayany-Yenisei accretionary belt, lateral thickening of the continental crust to the southwestern margin of the Siberian Craton, and its subsequent tectonic reworking. The synchronous Vendian orogenesis and consequence of the tectonic-thermal events along the periphery of the large Precambrian cratons of the Baltic and Siberia confirm their close spatial relation about 800 Ma ago, which agrees with contemporary paleomagnetic reconstructions. © 2013 Pleiades Publishing, Ltd.
Ключевые слова:	Blastomilonites; Continental crusts; Neoproterozoic; Precambrian; Shear zone; SIBERIA; Micas; Yenisei Ridge; Siberian Craton; Russian Federation; Krasnoyarsk [Russian Federation]; Vendian; tectonic evolution; shear zone; orogeny; mylonite; collision zone; argon-argon dating; age determination; accretion; Tectonics; Mica; Accretionary; Spatial relations;
Издано:	2013
Физ. характеристика:	с.489-493