Abstract
In the Ribeira Belt, between the States of São Paulo and Paraná, Brazil, metasedimentary rocks from Turvo-Cajati Formation crop out. There are some recent studies that point to distinct metamorphic field gradients in the same unit. The baric regime in partially molten granulite facies rocks indicates pressure above 9 kbar (Faleiros, 2008), whereas amphibolite facies rocks record a barrovi…