Tidal tomography constrains Earth’s deep-mantle buoyancy

@article{Lau2017TidalTC,
  title={Tidal tomography constrains Earth’s deep-mantle buoyancy},
  author={H. Lau and J. Mitrovica and J. Davis and J. Tromp and H. Yang and D. Al-Attar},
  journal={Nature},
  year={2017},
  volume={551},
  pages={321-326}
}
Earth’s body tide—also known as the solid Earth tide, the displacement of the solid Earth’s surface caused by gravitational forces from the Moon and the Sun—is sensitive to the density of the two Large Low Shear Velocity Provinces (LLSVPs) beneath Africa and the Pacific. These massive regions extend approximately 1,000 kilometres upward from the base of the mantle and their buoyancy remains actively debated within the geophysical community. Here we use tidal tomography to constrain Earth’s deep… Expand
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