On the Graphical Representation of Differentiation Trends in Igneous Rocks

1 June 1954

journal article
research article
Published by Cambridge University Press (CUP) in Geological Magazine

Vol. 91 (3) , 238-244
https://doi.org/10.1017/s0016756800065195

Abstract

This paper describes a revised method of plotting analyses of igneous rock suites using the Mafic and Felsic Indices as defined. A composite M–F diagram has certain advantages over the triangular iron-magnesia-alkalis diagram and enables a genetic distinction to be made between the tholeiitic and calc-alkaline series.

Keywords

This publication has 6 references indexed in Scilit:

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