RT Journal Article T1 Isótopos ambientales en las aguas subterráneas del macizo ígneo-metamórfico del Sistema Central (Cuenca del Alberche) T1 Enviromental isotopic composition of groundwater in the Sistema Central range (Alberche river basin) A1 Martín Loeches, Miguel A1 Herráez, I. A1 Hidalgo Moreno, A. J. A1 Araguas, L. AB The results of isotopic analyses - deuterium , oxygen-18 and tritium - are discussed for ground water samples obtained from severals wells and springs with different chemical types, located in the crystalline basin of the Alberche river. The results agree with the hypothesis that both saline and C03H-Na with reduced forms of sulphur waters can be related with medium or regional flows of meteoric waters in the cristalline body and the same can be interpreted from their tritium contents. There are not enough data to dismiss other sources PB Sociedad Geológica de España YR 1996 FD 1996 LK http://hdl.handle.net/10272/12887 UL http://hdl.handle.net/10272/12887 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026