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Significance of ferrodioritic liquids in magma mixing processes

Abstract

A general model to explain the various igneous associations found in mixed-magma intrusives and extrusives belonging to high-level volcanic centres is presented. This model is based on detailed mapping in the British Tertiary Volcanic Centre on Skye which suggests that basic and acid magmas were continually available throughout its development. New major- and trace-element data from these rocks indicate that they were co-genetic, and that the basic magmas which combined with acid magmas to produce hybrid magmas were ferrodioritic in composition, and not basaltic as had previously been thought.

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Bell, B. Significance of ferrodioritic liquids in magma mixing processes. Nature 306, 323–327 (1983). https://doi.org/10.1038/306323a0

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