Research ArticleOpen accessIn the keywordsSedimentology and Ichnology of Late Oligocene Delta Front Reservoir Sandstone Deposit, Greater Ughelli Depobelt, Niger DeltaRaphael Oaikhena Oyanyan, Michael Ndubuisi OtiCurrent Research in Geoscience, Vol. 5, Issue 1 · 30 Jul 2015 · 7,829 accessesView PDFCite