Paleoproterozoic felsic volcanism of Iricoumé group, Erepecuru-Trombetas domain, Amazonian central province: Field and petrographic characterization and Pb-Pb zircon geochronology

• Published in: Geologia USP. Série científica Vol. 13; no. 1; pp. 47 - 72
• Main Authors: Lúcia Travassos da Rosa Costa, Evandro Fernandes de Lima, Jean Michel Lafon, Carla Joana Santos Barreto
• Format: Journal Article
• Language: English
• Published: Universidade de São Paulo 01.03.2013
• Subjects: Amazonian Craton; Erepecuru-Trombetas Domain; Iricoumé Group; Orosirian; Volcanic rocks

The Iricoumé group consists of very well preserved pyroclastic and effusive volcanic rocks as a part of an extensive volcano-plutonic event, which marked the central part of the Amazonian craton during the Orosirian. Such rocks occur in the southern part of the southwestern of Erepecuru-Trombetas Do...