Abstract
Here we define and describe a new macrocrystalline radiate texture in a major layered intrusion. This occurrence is inconsistent with the much applied adcumulus crystal growth hypothesis which dominates current thinking on the derivation of ultrabasic rocks from basaltic magmas. Some radical alternative mechanisms of origin are proposed.
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DONALDSON, C., DREVER, H. & JOHNSTON, R. Crystallization of Poikilo-macro-spherulitic Feldspar in a Rhum Peridotite. Nature Physical Science 243, 69–70 (1973). https://doi.org/10.1038/physci243069a0
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DOI: https://doi.org/10.1038/physci243069a0
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