Uche M. Uzoegbu, Maureen O. Agbadamashi and Chukwudi Ugbome Hydrocarbon Geochemical Characteristics and Depositional Environment of Tertiary Tar Sand from Ondo, SW Nigeria. - 2016 - 37-45pp. Issue 5 Vol. 4 ISSN: 2321–0990 Subjects--Topical Terms: Geophysics