The Iberian Range contains abundant Pb–Zn–(Ag)–and Ba-dominated low temperature
veins, mostly formed during the Mesozoic. The hydrothermal activity was related to the
extensional regime occurring throughout the Variscan basement of Europe, North Africa and
the Appalachians. A stable and radiogenic isotopic study of these veins has identified the
reservoir/s of mineralizing components involved in the ore-forming processes. Sulphur
isotope ratios indicate that the source of mineralizing components for the base metals veins …