evidence: Kenji Motoki, Thomas Campos, Anderson Santos, Monica Heilbron, Leonardo Barão, Susanna Sichel, André Ferrari, Estefan Fonseca and Peter Szatmari [...] After the first work made by Almeida [32] in the Trindade Island, publishing the first geological map for Trindade Island (Figure 2), isolated publications about the Vitória-Trindade Ridge (VTR) raised a possible relationship between a mantle plume and oceanic lithosphere interaction in the South American Plate [37, 38, 39, 40, 41]. The VTR is an alignment composed of guyots, banks, seamounts, and islands, where Trindade Island and Martin Vaz Archipelago are inserted in the easternmost part of it. Several alkaline massifs inland Brazil territory are linked to the offshore extension, roughly parallel to the ca. 20°S, through a seamount ridge toward the islands 1200 km away from the Brazilian coast (Figure 1). [...] Fieldwork in the Trindade Island was only possible due to the cooperation with the Brazilian Navy and National Council for Scientific Research (CNPq) through the PRO-TRINDADE Program, which is responsible for the supervision and maintenance of scientific research in different areas of knowledge for this region of the Brazilian territory. The present work is linked to the Ministry of Science and Technology and Innovation and National Council for Scientific Research (MCT/CNPq project n ° 442805/2015-2), under the coordination of researchers from Federal University of Rio Grande do Norte. The Brazilian Navy maintains a military base at the Trindade Island Oceanographic Post (POIT), which included a scientific station of the Trindade Island for research and lodging of the researchers (ECIT).