S-wave velocity maps

Global horizontal S-wave seismic velocity anomaly maps for different upper-mantle depths highlighting the variable base topography of the surface plates with seismically fast, deep continental roots and cratons reaching far down into the mantle. Shown is the average of two upper-mantle seismic tomography models, SL2013sv (Schaeffer & Lebedev, 2013) and 3D2016_09Sv (Debayle et al., 2016).

  • Creator: Fabio Crameri
  • This version: 30.10.2021
  • License: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
  • Specific citation: This graphic by Fabio Crameri based on data compiled on SubMachine (Hosseini et al., 2018) is available via the open-access s-Ink repository.
  • Related references:
    · Hosseini, K. , Matthews, K. J., Sigloch, K. , Shephard, G. E., Domeier, M. and Tsekhmistrenko, M. (2018), SubMachine: Web-Based tools for exploring seismic tomography and other models of Earth’s deep interior. Geochemistry, Geophysics, Geosystems, 19. doi:10.1029/2018GC007431
    · Debayle, E., Dubuffet, F., and Durand, S. (2016), An automatically updated S-wave model of the upper mantle and the depth extent of azimuthal anisotropy, Geophys. Res. Lett., 43, 674– 682, doi:10.1002/2015GL067329.
    · A. J. Schaeffer, S. Lebedev, Global shear speed structure of the upper mantle and transition zone, Geophysical Journal International, Volume 194, Issue 1, July 2013, Pages 417–449, https://doi.org/10.1093/gji/ggt095
  • Alternative depths
  • Alternative map projections
  • Alternative colour map
  • Transparent background
  • Light & dark background versions
  • Perceptually uniform
  • Colour-vision deficiency friendly
  • Readable in black&white

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