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View Article and Find Full Text PDFIntraplate magmatic provinces found away from plate boundaries provide direct sampling of the composition and heterogeneity of the Earth's mantle. The chemical heterogeneities that have been observed in the mantle are usually attributed to recycling during subduction, which allows for the addition of volatiles and incompatible elements into the mantle. Although many intraplate volcanoes sample deep-mantle reservoirs-possibly at the core-mantle boundary-not all intraplate volcanoes are deep-rooted, and reservoirs in other, shallower boundary layers are likely to participate in magma generation.
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