Kinematics and metamorphism of the Xambioá formation: northern Araguaia belt

• Grant number: 17/23230-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2018
• End date: December 31, 2018
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Principal Investigator: Jacinta Enzweiler
• Grantee: Gabriela Bueno Fagundes de Freitas
• Host Institution: Instituto de Geociências (IG). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 16/06114-6 - The Neoproterozoic Earth System and the rise of biological complexity, AP.TEM

Abstract

The Araguaia Orogen represents part of the amalgamation history of the Gondwana Supercontinent during the late Neoproterozoic. The metasedimentary sequences record the tectonic history of the development and formation of this geotectonic unit. However, tectono-metamorphic studies performed in these sequences are rare and the existing works have a regional character. This scientific initiation project intends, in this context, to fill some of this gap by developing detailed tectonometamorphic studies in two cross sections of the Xambioá Formation, near the homonymous city. The studies will focus on obtaining P-T-d trajectories for the studied rocks in order to critically evaluate existing tectonic models for the region and thus contribute to a better understanding of the tectonic evolution of the Araguaia Orogen. (AU)