Geochemical and Economic Application of Marble from Igarra and Ikpeshi Areas, S.W. Nigeria

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Author(s) Obasi, R A | Anike, O. L
Pages 1723-1727
Volume 2
Issue 10
Date October, 2012
Keywords Geochemistry, application, marble, low lime and silica, blended

Abstract

Marble deposits occur prominently in Igarra and Ikpeshi areas of Southwestern Nigeria. Forty marble samples were subjected to geochemical and physical analysis in order to determine their applications. Geochemical data show that the Igarra marble is characterized by low SiO2 (1.84 – 4.83%), Al2O3 (0.16 – 0.67%) and MgO (1.10 – 5.33%) and high CaO (46.51 – 53.06%) and LOI (40.59 – 44.26%). This results in markedly low dolomite, MgCO3 (2.30 – 11.14%) and high calcite, CaCO3 (85.45 – 94.68%). The Ikpeshi marble is majorly calcitic having contained high values of CaCO3 (61.003 – 95.61%) and low values of MgCO3 (1.35 – 7.44%). However, the marble at the Golden Girl quarry is dolomitic having a MgCO3 content of 41.38 – 41.42%. The marble is suitable as sources of industrial raw materials for a variety of consumer products such as drugs, toothpaste, animal feeds and paper production. Other areas of application include agriculture, monuments, electrical, interior decoratives, flooring tiles, terrazzo chips, and fittings. However, the marble cannot be used for cement production due to low values of CaO (53.06%) and high values of LOI (>43%) unless the CaO and the SiO2 are blended.

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