Determination of Naturally Occurring Radioactive Materials-norm (Ra-226, Ra-228) in synthetic flowback developed at laboratory scale from rocks of the la LUNA-1 well, colombia, and benchmarking with Marcellus and eagle ford shale plays. ITEGAM-JETIA, [S. l.], v. 7, n. 30, p. 45–61, 2021. DOI: 10.5935/jetia.v7i30.770. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/770. Acesso em: 23 oct. 2026.