Diapiric ascent of magmas through power law crust and mantle

  title={Diapiric ascent of magmas through power law crust and mantle},
  author={Roberto F. Weinberg and Yuri Y. Podladchikov},
  journal={Journal of Geophysical Research},
There has never been a convincing explanation of the way in which diapirs of molten granite can effectively rise through mantle and crust. We argue here that this is mainly because the country rocks have previously been assumed to be Newtonian, and we show that granitoid diapirs rising through thermally graded power law crust may indeed rise to shallow crustal levels while still molten. The ascent velocity of diapirs is calculated through an equation with the form of the Hadamard-Rybczynski… 
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