Thermochemical structures within a spherical mantle : Superplumes or piles ?

@inproceedings{Mcnamara2004ThermochemicalSW,
  title={Thermochemical structures within a spherical mantle : Superplumes or piles ?},
  author={Allen Mcnamara and Shijie Zhong},
  year={2004}
}
[1] Heterogeneous compositional mantle models are frequently invoked to explain some observations obtained from geochemistry and seismology. In particular, two regions in the Earth’s lower mantle, under the Pacific and Africa, are often interpreted as being either piles or superplumes of dense material. We perform numerical modeling of thermochemical convection in a three-dimensional spherical geometry to investigate whether the geometry can focus a dense chemical component into a small number… CONTINUE READING

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