Инд. авторы:	Likhanov I.I., Reverdatto V.V., Kozlov P.S., Vershinin A.E.
Заглавие:	The Teya polymetamorphic complex in the Transangarian Yenisei Ridge: An example of metamorphic superimposed zoning of low- and medium-pressure facies series
Библ. ссылка:	Likhanov I.I., Reverdatto V.V., Kozlov P.S., Vershinin A.E. The Teya polymetamorphic complex in the Transangarian Yenisei Ridge: An example of metamorphic superimposed zoning of low- and medium-pressure facies series // Doklady Earth Sciences. - 2011. - Vol.436. - Iss. 2. - P.213-218. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X11020048; SCOPUS: 2-s2.0-79952762272;
Реферат:	eng: Two successive phases of metamorphism can be recognized based on mineralogical and petrological observations coupled with geothermobarometric estimates for chemical zoning in Fe- and Al-rich metapelites from the Teya crystalline rocks of the Transangarian Yenisei Ridge. The first phase is marked by the formation of low-pressure regional metamorphic complexes of the andalusite-sillimanite type (P = 3.9-5.1 kbar; T = 510-640°C), which were most likely related to the Middle Riphean Grenville events. In the second phase, metapelitic rocks underwent Late Riphean medium-pressure collisional metamorphism of the kyanite-sillimanite type (P = 5.7-7.2 kbar, T = 660-700°C), which resulted locally in an increase in pressure in the vicinity of thrusts. These results suggest that medium-pressure kyanite-bearing metapelitic rocks were formed as a result of collision-related metamorphism caused by thrusting of the Siberian cratonal blocks onto the Yenisei Ridge in the vicinity of the Tatarka deep fault. © 2011 Pleiades Publishing, Ltd.
Ключевые слова:	Krasnoyarsk [Russian Federation]; Yenisei Ridge; Russian Federation; tectonic setting; tectonic evolution; source rock; regional metamorphism; P-T conditions; metapelite; metamorphic facies; kyanite; Crystalline rocks; Zoning; Silicate minerals; Kyanite deposits; Second phase; Riphean; Metapelites; Increase in pressure; Deep fault; zoning; Chemical zoning;
Издано:	2011
Физ. характеристика:	с.213-218