Инд. авторы:	Khromykh S.V., Vladimirov A.G., Izokh A.E., Travin A.V, Prokop'ev I.R., Azimbaev E., Lobanov S.S.
Заглавие:	Petrology and geochemistry of gabbro and picrites from the Altai collisional system of Hercynides: Evidence for the activity of the Tarim plume
Библ. ссылка:	Khromykh S.V., Vladimirov A.G., Izokh A.E., Travin A.V, Prokop'ev I.R., Azimbaev E., Lobanov S.S. Petrology and geochemistry of gabbro and picrites from the Altai collisional system of Hercynides: Evidence for the activity of the Tarim plume // Russian Geology and Geophysics. - 2013. - Vol.54. - Iss. 10. - P.1288-1304. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.1016/j.rgg.2013.09.011; SCOPUS: 2-s2.0-84884584418; WoS: 000326130900011;
Реферат:	eng: We present petrological, isotopic, and geochronological data on gabbro-picrite plutons from the Altai collisional system of Hercynides (eastern Kazakhstan). The geological, geochemical, and geochronological data suggest that these rocks are indicators of the activity of the Tarim plume. The gabbro and picrites formed in two stages (~293 and 280 Ma) in an acid-to-basic succession, explained by a model for the interaction of thermochemical plumes with the lithosphere. Early igneous activity, which gave rise to subalkalic gabbro plutons, reflects the first interaction between the ascending plume and the lithosphere, with low-melting sublithospheric protoliths. Further interaction was characterized by the sublithospheric spread of the plume head with intense heating of the lithospheric base and possible intrusion of deep melts, which resulted in the formation of Cu-Ni-PGE gabbro-picrite plutons in the Altai collisional system and Northwest China. © 2013.
Ключевые слова:	protolith; pluton; picrite; petrology; mantle plume; lithospheric structure; igneous geochemistry; Altai Mountains; gabbro; fold belt; collision zone; Plume-lithosphere interaction; Mantle plumes; Gabbro-picrite associations of fold belts; geochronology;
Издано:	2013
Физ. характеристика:	с.1288-1304