TY - BOOK AU - Fancelli, R. AU - Fanelli, M. AU - Nuti, S. TI - Study of the thermal waters of north - west Tuscany U1 - 551.23 PY - 0000///[Fecha de publicación no identificada] CY - Pisa PB - Istituto Internazionale de Ricerche Geotermiche KW - Aguas Termales KW - Análisis Químico KW - Italia N1 - 06041; On the basis of the data provided by chemical and isotopical analyses a study was made of the thermal waters in Tuscany north of the River Arno to define the hydrothermal system with which they are connected. Three main water families were recognized : sodium - chloride, caclium - sulphate and calcium - bicarbonate. Their chemical composition is dependent on the nature of the rocks crossed during circulation. ER -