Authors:
C. Okujeni Ahmadu Bello University Department of Geology Zaria (Nigeria)

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I. Funtua Ahmadu Bello University C.E.R.T. Zaria (Nigeria)

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Abstract  

The Kanawa mineralization is one of the numerous low grade U-occurrences in the Gubrunde horst, NE Nigeria. Eighty nine samples consisting of ore and host rocks have been analyzed for 12 elements and 3 isotopes by atomic absorption spectrometry, colorimetry and direct -spectrometric methods and the data described using multivariate statistical techniques. The results show an enhancement of U, Mn, P2O5, Fe2O3, CaO,210Pb,226Ra and234Th in the ore zones. The element/isotopic associations (U–P2O5210Pb–226Ra–234Th), (Na2O–K2O–MgO), (Fe2O3–MnO–CaO–Cu) were established in the mineralized rhyolites, while (P2O5210Pb–226Ra–234Th), (Na2O–K2O–MgO–Zn) and Fe2O3–Mn–U) occur in the altered/unmineralized rocks. The variation in the pattern of association of Cu, U, Zn and CaO could be ascribed to their remobilization, depletion, enrichment or introduction in the ore zone by hydrothermal solutions. The elements/isotopes U, Zn, Cu, P2O5,226Ra,210Pb,234Th or their ratios could in addition to Pb, Ba, Ce, Sm be used as pathfinder elements in prospecting concealed ores in NE Nigeria.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)