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A Local Potassic Modification of the Ballachulish Granodiorite
Published online by Cambridge University Press: 01 May 2009
Abstract
The development of potash-rich pyroxene-bearing rocks around inclusions derived from the Appin limestone is associated with the transfer of magmatic silicon, aluminium, iron, and sodium. Calcium lost to the magma, by combining with further silicon, aluminium, and sodium to form a marginal zone rich in plagioclase, has left the magma enriched in potassium.
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