Abstract
Factors analysis is useful for studying the interrelationships of trace and major elements in sets of rock analyses. Its application to basic volcanic rocks show various features: (i) the principal factors relate to variation among mineral components; (ii) the behaviour of K is similar to that of Rb, Ba, Sr and in some cases P, W, Tl also; (iii) the coherence of Tl with K and Rb is often masked by a secondary effect depending on petrography; (iv) in some rock-groupings Li and H2O− are closely associated; (v) an unexpected association is Na, P and Sr; (vi) factor-scores can be used to discriminate alkalic from subalkalic basalts, using various element combinations.
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Paper Presented at The IAVCEI International Symposium on Volcanism and Associated Metallogenesis, Bucharest, Rumania, September 1973.
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Shaw, D.M., Dupuy, C., Fratta, M. et al. An application of factor analysis to basic volcanic rock geochemistry. Bull Volcanol 38, 1070–1089 (1974). https://doi.org/10.1007/BF02597106
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DOI: https://doi.org/10.1007/BF02597106