Correia G G, Duarte L V, Pereira A, Silva R L. Outcrop gamma-ray spectrometry: Applications to the Sinemurian–Pliensbachian organic-rich facies of the Lusitanian Basin (Portugal). JIGE [Internet]. 2012 Nov. 2 [cited 2024 Nov. 14];38(2):373-88. Available from: https://doi.org/10.5209/rev_JIGE.2012.v38.n2.40464