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Presentation and interpretation of chemical data for igneous rocks

Contributions to Mineralogy and Petrology

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DOI: 10.1007/BF00951332

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Abstract

Arguments are made in favor of using variation diagrams to plot analyses of igneous rocks and their derivatives and modeling differentiation processes by least-squares mixing procedures. These methods permit study of magmatic differentiation and related processes in terms of all of the chemical data available. Data are presented as they are reported by the chemist and specific processes may be modeled and either quantitatively described or rejected as inappropriate or too simple. Examples are given of the differing interpretations that can arise when data are plotted on an AEM ternary vs. the same data on a full set of MgO variation diagrams. Mixing procedures are illustrated with reference to basaltic lavas from the Columbia Plateau. ?? 1974 Springer-Verlag.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Presentation and interpretation of chemical data for igneous rocks
Series title:
Contributions to Mineralogy and Petrology
DOI:
10.1007/BF00951332
Volume
48
Issue:
4
Year Published:
1974
Language:
English
Publisher:
Springer-Verlag
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Contributions to Mineralogy and Petrology
First page:
233
Last page:
248