Shrimp U-Pb age and Sr-Nd isotopes of the Morro do Baú mafic intrusion: implications for the evolution of the Arenópolis volcano-sedimentary sequence, Goiás Magmatic Arc

Shrimp U-Pb age and Sr-Nd isotopes of the Morro do Baú mafic intrusion: implications for the evolution of the Arenópolis volcano-sedimentary sequence, Goiás Magmatic Arc

The Arenópolis volcano-sedimentary sequence is located in the southern part of the Goiás Magmatic Arc and includes a ca. 900 Ma calc-alkaline arc sequence made of volcanic rocks ranging in composition from basalts to rhyolites, metamorphosed under greenschist to amphibolite facies. Small calc-alkali...

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Bibliographic Details
Main Authors: Márcio M. Pimentel, Maria Helena B. M. Hollanda, Richard Armstrong
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2003-09-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
Arco Magmático de Goiás
U-Pb SHRIMP
magmatismo básico
contaminação crustal
Goiás Magmatic Arc
Arenópolis
basic magmatism
crustal contamination
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000300006

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