Geochemistry of the intrusive tholeiitic magmatism in the Ponta Grossa arch - Machado, Fábio Braz; Nardy, Antonio Jose Ranalli; Marques, Leila Soares; Soares Junior, Adilson Viana; Souza, Iata Anderson de; Franco-Magalhães, Ana Olivia Barufi; Babinski, Marly (Congresso Brasileiro de Geologia, 2012)