Mendes, A. C.; Truckenbrodt, W. Provenance of Albian Sandstones (Itapecuru Group), Eastern Border of São Luís-Grajaú Basin, Maranhão, Using Heavy Mineral Analysis and Mineral Chemistry. bcnaturais 2009, 4 (1), 57-74. https://doi.org/10.46357/bcnaturais.v4i1.671.