Silurian black shales from Sousel-Barrancos Metallogenic Belt (Ossa-Morena Zone, Portugal): Characterization and interplay to Cu deposits - Laranjeira, Vanessa; Ribeiro, Joana; Moreira, Noel; Nogueira, Pedro; Mendonça Filho, João Graciano; Rocha, Fernando; Flores, Deolinda (2023)