Tracing the origin of Permian volcanic ash fall layers in the Paraná Basin using zircon U-Pb ages, Lu-Hf isotopes, and trace element contents - Marques dos Santos, M. M.; Passarelli, Claudia Regina; Saad, Antonio Roberto; Santos, Paulo Roberto dos; Basei, Miguel Angelo Stipp; Lino, Lucas Martins (Journal of South American Earth Sciences, 2026)