OgbesejanaA.B., SaboS.A., AlisiI.O., EgwuA.C. and OdusinaB.O. 2024. GEOCHEMISTRY OF THE UPPER CRETACEOUS SHALES FROM GOMBE FORMATION, GONGOLA BASIN, UPPER BENUE TROUGH, NIGERIA: IMPLICATIONS FOR PROVENANCE AND TECTONIC EVOLUTION. FUDMA JOURNAL OF SCIENCES. 8, 6 (Dec. 2024), 528 - 538. DOI:https://doi.org/10.33003/fjs-2024-0806-3013.