• Rock magnetism and microscopy of the Jacupiranga alkaline-carbonatitic complex, southern Brazil 

      Alva Valdivia, Luis Manuel; Perrin, Mireille; Rivas Sánchez, María De La Luz; Goguitchaichvili, Avto; López Loera, Héctor; Lopes, Omar Ferreira; Bonás, Thiago Bastos (Springer, 2009)
      "This study of the Cajati deposit provides evidence that the ore was neither purely hydrothermal, nor volcanic in origin, as previous workers have proposed. The ores were formed from magnetite-rich magmas, hydrothermally ...