Universal Journal of Geoscience Vol. 3(1), pp. 28 - 33
DOI: 10.13189/ujg.2015.030103
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Geochemical Assessment for Gold in Sediments of Gora River in Minna Area, North-central Nigeria


S.O. Obaje 1,*, F.C. Ugbe 2, I.A. Akpoborie 2, A.O. Edebiri 2
1 Department of Earth Sciences, Salem University, Nigeria
2 Department of Geology, Delta State University, Nigeria

ABSTRACT

Investigation was carried out on sediments of River Gora to geochemically assess for gold and its origin. The study area is situated in Minna in the North-Central geo-political zone of Nigeria. The area is constrained within latitude 9°33'N and 9°35'N and longitude 6°34'E and 6°35'E. Major and trace elements were analyzed using X-Ray Fluorescence spectrometry method. To decipher the factors responsible for the elemental association with gold, factor analysis, principal component analysis and cluster analysis were performed. The result revealed two main clusters of variables classified into three groups, namely: cluster 1, cluster 2(a) and cluster 2(b). Cluster 1 is made up of Ba and Sr, while cluster 2(a) consists of Rb, Cu, Zn, Cr, Ba and cluster 2(b) contains As, Mn, Mo, Fe, Au, Sb, Ni, Pb. The principal component analysis solution revealed four components, namely: component 1 (Sb, Ba, As, Zn, Cu, Ni, Cr, Fe), component 2 (Ba, As, Pb, Zn, Cu, Cr, Fe), component 3 (Sb, As, Zn, Sr, Ni, Cr, Fe) and component 4 (Au, Sb, Ba, As, Pb, Cu, Mo, Cr). The elemental associations suggested sulphide-gold mineralization within the surrounding schist and granitoids as possible source rocks.

KEYWORDS
Geochemical exploration, placer gold, Gora River, Minna, Nigeria

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] S.O. Obaje , F.C. Ugbe , I.A. Akpoborie , A.O. Edebiri , "Geochemical Assessment for Gold in Sediments of Gora River in Minna Area, North-central Nigeria," Universal Journal of Geoscience, Vol. 3, No. 1, pp. 28 - 33, 2015. DOI: 10.13189/ujg.2015.030103.

(b). APA Format:
S.O. Obaje , F.C. Ugbe , I.A. Akpoborie , A.O. Edebiri (2015). Geochemical Assessment for Gold in Sediments of Gora River in Minna Area, North-central Nigeria. Universal Journal of Geoscience, 3(1), 28 - 33. DOI: 10.13189/ujg.2015.030103.