Permeability of the continental crust: Implications of geothermal data and metamorphic systems

  title={Permeability of the continental crust: Implications of geothermal data and metamorphic systems},
  author={C. Manning and S. Ingebritsen},
  journal={Reviews of Geophysics},
  • C. Manning, S. Ingebritsen
  • Published 1999
  • Geology
  • Reviews of Geophysics
  • In the upper crust, where hydraulic gradients are typically 10 MPa km−1, the mean permeabilities required to accommodate the estimated metamorphic fluid fluxes decrease from ∼10−16 m² to ∼10−18 m² between 5- and 12-km depth. Below ∼12 km, which broadly corresponds to the brittle-plastic transition, mean k is effectively independent of depth at ∼10−18.5±1 m² Consideration of the permeability values inferred from thermal modeling and metamorphic fluxes suggests a quasi-exponential decay of… CONTINUE READING
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