Mineral chemistry and crystal size distributions of mafic dikes and sills on the eastern border of the Parnaíba Basin, NE Brazil - Macêdo Filho, Antomat Avelino; Archanjo, Carlos José; Hollanda, Maria Helena Bezerra Maia de; Negri, Francisco de Assis (Journal of Volcanology and Geothermal Research, 2019)