naa a22 4500 510736211 CHVBK 20180411083011.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1134/S1075701513070027 doi (NATIONALLICENCE)springer-10.1134/S1075701513070027 Allanite-(Y) in areas of ongonite magmatism in the Far East: Isomorphism and petrogenetic implications [Elektronische Daten] [V. Alekseev, Yu. Marin, I. Gembitskaya] The research history of allanite-(Y) has been considered. The composition and genesis of this mineral is discussed with allowance for new findings in Li-F granites of the Russian Far East. Compositional anomalies in allanite-(Y) reflect the metastable character of its structure. Types of zoning and trends in the chemical substitution of major components are described. Two crystal chemical modes of allanite-(Y) formation and the two-step isomorphism of its components are suggested. The main tendencies in the chemical evolution of allanite-(Ce) and allanite-(Y) in granitic rocks of the Far East are pointed out. Allanite-(Y) is formed in the anomalous geochemical setting that characterizes crystallization of fluid-saturated subalkaline granitic melt and is regarded as an index mineral of rare-metal ongonite magmatism completing the Late Cretaceous Pacific Orogeny. Pleiades Publishing, Ltd., 2013 Alekseev V. National University of Mineral Resources, 21-aya liniya 2, St. Petersburg, 199106, St. Petersburg, Russia aut Marin Yu National University of Mineral Resources, 21-aya liniya 2, St. Petersburg, 199106, St. Petersburg, Russia aut Gembitskaya I. National University of Mineral Resources, 21-aya liniya 2, St. Petersburg, 199106, St. Petersburg, Russia aut Geology of Ore Deposits Springer US; http://www.springer-ny.com 55/7(2013-12-01), 503-514 1075-7015 55:7<503 2013 55 11477 https://doi.org/10.1134/S1075701513070027 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1075701513070027 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Alekseev V. National University of Mineral Resources, 21-aya liniya 2, St. Petersburg, 199106, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Marin Yu National University of Mineral Resources, 21-aya liniya 2, St. Petersburg, 199106, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Gembitskaya I. National University of Mineral Resources, 21-aya liniya 2, St. Petersburg, 199106, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Geology of Ore Deposits Springer US; http://www.springer-ny.com 55/7(2013-12-01), 503-514 1075-7015 55:7<503 2013 55 11477 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer