New Advances in the Geochronology of South America: An introduction

Abstract

The Centro de Pesquisas Geocronológicas da Universidade de São Paulo (Center of Geochronological Research of the University of São Paulo, CPGeo-USP), a leader center of geochronology in South America, accomplished its first 45 years in 2009. In the previous year the CPGeo-USP founder and scientific director for many years, Dr. Umberto Cordani completed 70 years and was obliged to retire. To celebrate both birthdays a scientific meeting was held in São Paulo, with the aim to update the geochronological knowledge and advances in our continent. A selection of the different conferences given in this event and assorted in this Special Issue, envisages focusing in the recent developments of the geochronology in South America.