K. J. Murata
M. Gordon Jr.
1952
<p><span>A study of the </span>minor<span> </span>elements<span> </span>in<span> </span>Arkansas<span> </span>bauxite<span> has revealed some striking relationships between their concentration </span>in<span> the parent nepheline syenite rocks as compared with their concentration </span>in<span> the </span>bauxite<span>. The ratios of concentration, </span>in<span> general, follow a pattern predicted by Gold-schmidt (3),2 based upon the ionic radius and ionic charge of each </span>element<span> present. </span>In<span> the </span>Arkansas<span> deposits, Mg, Ca, Ba, La, and Sr were depleted during the change from nepheline syenite to </span>bauxite<span>. The average concentration of Pb remained the same </span>in<span> the samples tested. Y, Mn, Be, V, Sc, Ti, and Zr were concentrated, but not as much as Al; while Mo, Nb (Cb), Ga, Cu, and Cr were concentrated more than Al.' Niobium (columbium) apparently is found </span>in<span> sufficient quantities to warrant search for methods to extract it commercially as a by-product of alumina plants. </span></p>
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10.2113/gsecongeo.47.2.169
en
Society of Economic Geologists
Minor elements in Arkansas bauxite
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