gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.1.100 The Laboratorial Evaluation of the Transfer of ²³⁴U and ²³⁸U to the Waters Interacting with Carbonates and Implications to the Interpretation of Field Data Bonotto D. M. Departamento de Petrologia e Metalogenia, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista (UNESP) - Câmpus de Rio Claro, 13506-900-Rio Claro, São Paulo, Brazil Andrews J. N. Postgraduate Research Institute for Sedimentology (PRIS), University of Reading, Reading RG6 2AB, UK 1998 62A 1 187 188 Copyright © 1998, The Mineralogical Society 1998