RT Journal Article T1 Fraccionamiento de Fe y metales pesados en un deposito incontrolado de residuos mineros del paraje natural Estero Domingo Rubio (Huelva) T1 Fractionation ofFe and heavymetals in abandoned mine wastes at the Estero Domingo Rubio (Huelva) A1 Barba Brioso, Cinta A1 Otero, Xose L. A1 Fernández Caliani, Juan Carlos A1 Delgado Rodríguez, Joaquín María A1 Macias, Felipe A1 Galán Huertos, Emilio AB Two samples of mine wastes were selected from an abandoned deposit at the Natural Park Estero Domingo Rubio, in order to determine the fractionation and relative mobility of some heavy metals (Cd, Cu, Mn, Ni, Pb,Zn). The chemical partitioning of elements was conducted by a six-step sequential extraction scheme developed for Te-rich materials. The results showed high pseudototal concentrations of heavy metals (up to 3249 mgL1 Pb,1670 mgL1 Zn and 625 mgL1 Cu). A large proportion of these potentially toxic metals are easily mobilisable at the present acidic and oxidant conditions, because most of them are bound to soluble and/or exchangeable phases (up to 84% Pb) and oxidisable phases (up to 91%Zn, 83% Cd and 71% Cu) ofthe wastes YR 2010 FD 2010 LK http://hdl.handle.net/10272/7880 UL http://hdl.handle.net/10272/7880 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026