Role of plagioclase crystal chains in the differentiation of partly crystallized basaltic magma

Anthony R. Philpotts (), Jianyang Shi and Caroline Brustman
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Anthony R. Philpotts: University of Connecticut
Jianyang Shi: University of Connecticut
Caroline Brustman: University of Connecticut

Nature, 1998, vol. 395, issue 6700, 343-346

Abstract: Abstract Melting experiments on samples of basaltic rock from a thick lava flow reveal that when this lava originally began to crystallize, feldspar crystals linked together to form a continuous three-dimensional network of chains when the lava was no more than 25% crystallized. Formation of this network has profound implications for the behaviour and differentiation of basaltic magma. Much of the compositional variation of igneous rocks results from the separation of liquid from crystals, a process that is dramatically affected according to whether crystals occur separately or are linked together in networks.

Date: 1998
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DOI: 10.1038/26404

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