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Isotopic studies of the Paraguay Belt internal domain

Grant number: 18/04669-6
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): April 01, 2018
Effective date (End): March 31, 2019
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal Investigator:Mario da Costa Campos Neto
Grantee:Rafael Moreti Arantes Vieira
Host Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:15/03737-0 - The Rio de La Plata Craton and the Western Gondwana Assembly, AP.TEM

Abstract

Isotopic studies of the inner domain from the Paraguay Belt The structural setting, the composition and age of magmatic rocks and the sedimentary provenance from the Paraguay Belt inner domain (allochthonous?) are approaches that aim to distinguish, in this domain, geological signatures from active margin or asymmetric rift distal zone. The search of this paleogeographic configuration places this thrust-and-fold belt in a continental margin or as an intraplate belt. In this context, we seek for the Paranapanema Block, the microcontinent or the thinned margin of Amazonian Craton characteristic. In this IC project, the student will be in touch from the bibliography and in field works, with the metavolcanosedimentary rocks of the Nova Xavantina Sequence and the metasedimentary rocks of the Cuiabá Group. He will also participate in the detailed sampling process and in a geological-structural section in search of relationships between these units. The petrographic descriptions of these rocks, the samples preparation, mineral separation, both for chemical and isotopic analyses and U-Pb data acquisition through zircon LA-ICP-MS are part of this project. He will also participate in the interpretation process of the results. (AU)

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