Bonotto, Daniel Marcos [UNESP]2014-05-202014-05-202000-01-01Risk Analysis Ii. Southampton: Wit Press, v. 3, p. 197-206, 2000.1470-6326http://hdl.handle.net/11449/31254Groundwaters from the Guarany aquifer located at the South American continent and sampled at four wells with described geological sections in São Paulo State, Brazil, were chemically and isotopically analysed with two aims: to evaluate the quality of this important hydrological resource and to investigate the possibility of using the natural uranium isotopes U-234 and U-238 as a chronological tool, since the U-234/U-238 activity ratio and dissolved U content data in groundwater systems have generated models for dating purposes.197-206engTrabalho apresentado em eventoWOS:000166472300020Acesso aberto7430102726026121