A poikiloblast is a porphyroblast mineral with small inclusions of the previous rock in it.[1] From the texture (if any) shown in the inclusion, the deformation history of the rock can be interpreted, as the inclusions are always older than the porphyroblast.
References
edit- ^ Barker, A. J. (1998). Introduction to Metamorphic Textures and Microstructures. Psychology Press. pp. 85–100. ISBN 978-0-7487-3985-1.
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