Rheology of the Upper Mantle: A Synthesis

@article{Karato1993RheologyOT,
  title={Rheology of the Upper Mantle: A Synthesis},
  author={Shun‐ichiro Karato and Patrick Wu},
  journal={Science},
  year={1993},
  volume={260},
  pages={771 - 778}
}
Rheological properties of the upper mantle of the Earth play an important role in the dynamics of the lithosphere and asthenosphere. However, such fundamental issues as the dominant mechanisms of flow have not been well resolved. A synthesis of laboratory studies and geophysical and geological observations shows that transitions between diffusion and dislocation creep likely occur in the Earth's upper mantle. The hot and shallow upper mantle flows by dislocation creep, whereas cold and shallow… 

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