Abstract
The Carrancas Group os divided in two formations, São Tomé das Letras and Campestre. The first is dominated by quartzites and the second by quartzite and schist alternation. Previous metamorphic maps have small detail over rocks croping out on Carrancas, Bicas and Moleque hills. Schists of Campestre Formation are richer in Al2O3, and plot above garnet-chlorite tie line and metamorphic zon…