Geochemical behaviour of trace elements during fractional crystallization and crustal assimilation of the felsic alkaline magmas of the state of Rio de Janeiro, Brazil

Geochemical behaviour of trace elements during fractional crystallization and crustal assimilation of the felsic alkaline magmas of the state of Rio de Janeiro, Brazil

ABSTRACT This paper presents geochemical behaviour of trace elements of the felsic alkaline rocks of the state of Rio de Janeiro, Brazil, with special attention of fractional crystallization and continental crust assimilation. Fractionation of leucite and K-feldspar increases Rb/K and decreases K2O/...

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Bibliographic Details
Main Authors: AKIHISA MOTOKI, SUSANNA E. SICHEL, THAIS VARGAS, DEAN P. MELO, KENJI F. MOTOKI
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2015-12-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
nefelina sienito
álcali sienito
elementos traços
elementos terras raras
cristalização fracionada
assimilação da crosta continental
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000501959&lng=en&tlng=en

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000501959&lng=en&tlng=en

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