Reply to the Discussion by Duarte and Hartmann on "Volcanic stratigraphy of intermediate to acidic rocks in southern Paraná Magmatic Province, Brazil" by Polo and Janasi (2014), Geologia USP. Série científica, 14(2), 83-100 - Polo, Liza Angélica; Janasi, Valdecir de Assis (Geologia USP. Série Científica, 2014)