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Tag: Slab tearing

Slab tearing (sketch)

Sketch of laterally progressing slab detachment and resulting inflow of asthenospheric material into the opening gap.

Sketch of laterally progressing slab detachment. The concentration of slab pull forces towards a narrowing part of the subducted plate (slab) produces a characteristic pattern of surface-plate subsidence and uplift migrating along strike, and increases trench retreat and inflow of asthenospheric material into the gap resulting from the slab detachment.

  • Creator: Fabio Crameri
  • This version: 21.10.2022
  • License: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
  • Specific citation: This graphic by Fabio Crameri adopted from Wortel and Spakman (2000) is available via the open-access s-Ink.org repository.
  • Related reference: Wortel, M. J. R., & Spakman, W. (2000). Subduction and slab detachment in the Mediterranean-Carpathian region. Science, 290(5498), 1910-1917.
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Slab tearing

Time-evolution of subduction slab break-off shown in a global spherical 3-D model.

Evolution of subduction slab tearing and eventual slab break-off shown in a global spherical 3-D model by contours of viscosity. The stiff down-going plate (yellow) is moving towards the observer before subduction and is starting to laterally tear apart at depth, while the remaining intact part continues to subduct.

  • Creator: Fabio Crameri
  • This version: 01.09.2021
  • License: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
  • Specific citation: This graphic by Fabio Crameri from Crameri and Tackley (2014) is available via the open-access s-Ink repository.
  • Related reference: Crameri, F., and P.J. Tackley (2014), Spontaneous development of arcuate single-sided subduction in global 3-D mantle convection models with a free surface, J. Geophys. Res. Solid Earth, 119(7), 5921-5942, doi:10.1002/2014JB010939
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