Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up

Silvia Leonor Lagorio: Geologist in Servicio Geológico Minero Argentino (SEGEMAR). Specialist in petrology and geochemistry of igneous rocks. He is working as a Senior Geologist at the Department of Regional Geology of Servicio Geológico Minero Argentino (SEGEMAR). Haroldo Vizán: Member of the Career of Scientific Researcher of the National Council for Scientific and Technical Research (CONICET) of Argentina. Professor of the Faculty of Natural Sciences, University of Buenos Aires. Miembro de la Carrera del Investigador Científico del Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) de la República Argentina. Docente de la Facultad de Ciencias Exactas y Naturales de la Universidad de Buenos Aires. He is a Independent Researcher (CONICET), Assistant Professor (University of Buenos Aires). Investigador Independiente (CONICET), Profesor Adjunto (Universidad de Buenos Aires).

Introduction.- Volcanism of Sierra Chica of Córdoba.- Volcanism of Serra Geral in Misiones Province.- Paleoreconstruction of Pangea during the Early Cretaceous volcanism in Córdoba and Misiones Provinces and its location respect to the seismic structure of the mantle.- Discussion and geodynamical proposals for the alkaline volcanism of Córdoba Province and Paraná Magmatic Province.- Conclusions.