Lithofacies and depositional environments in the Saltpond Basin of Ghana: A well log analysis

This study employs geophysical logs to interpret lithofacies and depositional environments within Ghana’s Saltpond Basin, complementing the region’s predominantly surface-based analyses. Gamma ray (GR) and spontaneous potential (SP) logs were used to identify sand, shaly sand, and shale lithologies, while resistivity, bulk density, and sonic logs further refined lithological characterization. The well section was divided into seven electrofacies units based on distinct log responses and motifs. GR log motifs and facies sequences were analyzed to interpret depositional environments, which were identified as fluvial, shallow marine, and deltaic, consistent with known regional facies patterns. This study confirms the reliability of well logs for lithofacies and depositional environment interpretations, particularly in the absence of core samples