The 1590-1520 Ma Cachoeirinha magmatic arc and its tectonic implications for the Mesoproterozoic SW Amazonian craton crustal evolution

The 1590-1520 Ma Cachoeirinha magmatic arc and its tectonic implications for the Mesoproterozoic SW Amazonian craton crustal evolution

Isotopic and chemical data of rocks from the Cachoeirinha suite provide new insights on the Proterozoic evolution of the Rio Negro/Juruena Province in SW Amazonian craton. Six U-Pb and Sm-Nd analyses in granitoid rocks of the Cachoeirinha suite yielded ages of 1587-1522 Ma and T DM model ages of 1.8...

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Bibliographic Details
Main Authors: Ruiz Amarildo S., Geraldes Mauro C., Matos João B., Teixeira Wilson, Van Schumus William R., Schmitt Renata S.
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2004-01-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
Amazonian craton
U-Pb and Sm-Nd geochronology
Mesoproterozoic
juvenile magmatism
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000400013

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000400013

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