Groundwater apparent ages and isotopic composition in Crystalline, Diabase and Tubarão aquifers contact area in Campinas, Southeastern Brazil - Marteleto, Thaís de Paula; Abreu, Ana Elisa Silva de; Barbosa, Marcos Bolognini; Yoshinaga, Sueli; Bertolo, Reginaldo Antonio; Enzweiler, Jacinta (Journal of South American Earth Sciences, 2024)