Research ArticleOpen accessIn the keywordsGeophysical and Geological Studies of the Spread and Industrial Quality of Okurike Barite DepositAnthony E. Akpan, Ebong D. Ebong, Stephen E. Ekwok, Sackey JosephAmerican Journal of Environmental Sciences, Vol. 10, Issue 6 · 22 Dec 2014 · 7,256 accessesView PDFCite