ABSTRACT Geochemical characterization and lithostrtigraphic description of the Neogene strata in the Orafite-Nnewi area of Southeastern Nigeria are carried out based on detailed field measurments and laboratory studies. The Ogwashi-Asaba formation consists of multi storey channelized sandstone, pebbly at the base and fining upward. Lignite seams occurs at various levels. Some geochemical properties of Enem, Olulu and Ejighioku lignites deposi...
