Geological study of sediments from the Negro and Solimões rivers. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 12, n. 4A (Suppl.), p. e2578, 2025. DOI: 10.15392/2319-0612.2024.2578. Disponível em: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/2578. Acesso em: 1 may. 2025.