Hydrogeochemistry and distribution of potentially toxic elements in a metallogenic province – The Iberian Pyrite Belt, PortugalPatricia Gomes, Teresa Valente, Maria Rosário Costa, Rita Fonseca, Ana Costa, Orquídea Neves and Filipa MorenoE3S Web Conf., 98 (2019) 01016DOI: https://doi.org/10.1051/e3sconf/20199801016