EVOLUÇÃO TECTÔNICA DOS TERRENOS ENTRE OS CINTURÕES RIBEIRA E DOM FELICIANO (PR-SC)

RIBEI-RA BELTS (SOUTHERN-BRAZIL). This paper discusses the tectonic interpretation of the late Pre-Cambrian to lower Paleozoic Terrains of the states of Paraná and Santa Catarina in southern Brazil.The abandoning of the term "Median Joinville Massif" is proposed.It is substituted by three tectonic units recognised hi this region: Curitiba Microplate (north), Luís Alves Microplate (south) and Costeiro Granitoid Belt (east).Lithological, geochcmical and gcochronological data obtained in these terrains confirm their differences and allow the separation of the three units proposed whose agglutination took place during the Brasiliano and Rio Doce Orogenies between 650 and 550 Ma ago produced by subductions and collisions related to the assemblage of Gondwana.