Инд. авторы:	Kulikova A.V., Buslov M.M., Travin A.V.
Заглавие:	GEOCHRONOLOGY OF THE METAMORPHIC ROCKS IN THE KURAI ACCRETIONARY PRISM (SOUTH-EASTERN GORNY ALTAI)
Библ. ссылка:	Kulikova A.V., Buslov M.M., Travin A.V. GEOCHRONOLOGY OF THE METAMORPHIC ROCKS IN THE KURAI ACCRETIONARY PRISM (SOUTH-EASTERN GORNY ALTAI) // GEODYNAMICS & TECTONOPHYSICS. - 2017. - Vol.8. - Iss. 4. - P.1049-1063. - ISSN 2078-502X.
Внешние системы:	DOI: 10.5800/GT-2017-8-4-0332; WoS: 000418662300020;
Реферат:	eng: The paper provides a review of the published and new geological and geochronological data on the metamorphic rocks in the Kurai accretionary prism, considering the evolution of the Kuznetsk-Altai island-arc paleosubduction channel of the Siberian continent. The following two stages are distinguished by Ar-40/Ar-39 and U/Pb dating: (1) 636-619 Ma and earlier: sinking of ophiolites into the subduction zone; (2) 604-585 Ma: sinking of the large bodies of oceanic uplifts into the subduction zone. These processes led to the exhumation of the high-pressure rocks and the hot Chagan-Uzun peridotites. The dynamo-thermal effect of the latter on the basalts is reflected in the inverted metamorphic zoning and the occurrence of garnet amphibolites and plagiogranite migmatites. It is probable that the paleo-seamounts collided with the island arc during the Vendian-Early Cambrian. The data reviewed in this paper give evidence of an active margin of the West Pacific type in the western Altai-Sayan folded region in the Vendian-Cambrian.
Ключевые слова:	COMPLEX; GEODYNAMICS; BELT; OPHIOLITE; TECTONICS; EVOLUTION; RUSSIA; SIBERIAN CONTINENT; CENTRAL-ASIA; metamorphic rocks; Ar-40/Ar-39 dating; geochronology; accretionary prism; CRUSTAL GROWTH;
Издано:	2017
Физ. характеристика:	с.1049-1063