Insights into the dynamics of mantle plumes from uranium-series geochemistry

  title={Insights into the dynamics of mantle plumes from uranium-series geochemistry},
  author={Bernard Bourdon and Neil M. Ribe and Andreas Stracke and Alberto E Saal and Simon Turner},
The long-standing paradigm that hotspot volcanoes such as Hawaii or Iceland represent the surface expression of mantle plumes—hot, buoyant upwelling regions beneath the Earth’s lithosphere—has recently been the focus of controversy. Whether mantle plumes exist or not is pivotal for our understanding of the thermal, dynamic and compositional evolution of the Earth’s mantle. Here we show that uranium-series disequilibria measured in hotspot lavas indicate that hotspots are indeed associated with… Expand

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