Thorsten W. Becker

Jackson School of Geosciences
The University of Texas at Austin

Slab surfing


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teaching: UT GEOL: [GP 354], [LP 315] [TG 371], other classes
[CIDER] [C] [UNIX/GMT] [SEATREE] [visuals]

Other Earth science / computing visualizations for download

Tomography slab profile movies


Click each image below for a GIF movie of slices through a number of P and S wave tomography models down to 2000 km depth moving along RUM trenches (but showing SLAB2 contours on the map) for several subduction zones. Use Preview, Eog, gifview or some other graphics tool to click through the frames.

subduction zone tomography models
MITP08 GAP_P4 UU-P07 TX2019-SLAB TX2019-NSLAB S40RTS SAVANI GLAD-M25 SMEAN
Central America
South America
Caribbean
Indonesia
Mariana-Japan-Kuriles
Tonga
Aleutians

References

  • seismicity contours
    • RUM:
      • Gudmundsson, Ó., and M. Sambridge (1998), A regionalized upper mantle (RUM) seismic model, J. Geophys. Res., 103 (B4), 7121-7136, doi:10.1029/97JB02488.
    • SLAB2:
      Hayes, G., 2018, Slab2 - A Comprehensive Subduction Zone Geometry Model: U.S. Geological Survey data release, https://doi.org/10.5066/F7PV6JNV.
  • tomography
    • MITP08:
      • Li, C., R. D. van der Hilst, E. R. Engdahl, and S. Burdick (2008), A new global model for P wave speed variations in Earth's mantle, Geochem. Geophys. Geosyst., 9, Q05018, doi:10.1029/2007GC001806.
    • GAP_P4:
      • Obayashi M., J. Yoshimitsu, G. Nolet, Y. Fukao, H. Shiobara, H. Sugioka, H. Miyamachi, Y. Gao (2013), Finite frequency whole mantle P-wave tomography: Inprovement of subducted slab, Geophys. Res. Lett., 40, 5652-5657, doi:10.1002/2013GL057401.
      • Fukao Y., M. Obayashi (2013), Subducted slabs stagnant above, penetrating through and trapped below the 660-km discontinuity. J. Geophys. Res., 118, 5920-5938, doi:10.1002/2013JB010466.
    • GLAD-M25:
      • Lei, W., Ruan, Y., Bozdağ, E., Peter, D., Lefebvre, M., Komatitsch, D., Tromp, J., Podhorszki, N., Pugmire, D., 2020. Global adjoint tomographymodel glad-m25. Geophysical Journal International 223, 1-21.
    • RSAVANI:
      • Porritt, R., Becker, T.W., Boschi, L., and Auer, L.: Multi-scale, radially anisotropic shear wave imaging of the mantle underneath the contiguous United States through joint inversion of USArray and global datasets. Geophys. J. Int., 265, 1730-1746, 2021.
    • SAVANI:
      • Auer, L., Boschi , L., Becker, T. W., Nissen-Meyer, T. and Giardini, D.: Savani: a variable-resolution whole-mantle model of anisotropic shear-velocity variations based on multiple datasets. J. Geophys. Res. - Solid Earth, 119, 3006-3034, doi:10.1002/2013JB010773, 2014.
    • S40RTS:
      • Ritsema, J., Deuss, A. A., Van Heijst, H. J., & Woodhouse, J. H. (2011). S40RTS: a degree-40 shear-velocity model for the mantle from new Rayleigh wave dispersion, teleseismic traveltime and normal-mode splitting function measurements. Geophysical Journal International, 184, 1223-1236.
    • TX2019:
      The S wave versions is used here, with (TX2019SLAB) and without (TX2019NSLAB) prescribed upper mantle, slab structure from Wadati-Benioff zones
      • Lu, C., Grand, S. P., Lai, H., and Garnero, E. J. (2019). TX2019slab: A new P and S tomography model incorporating subducting slabs. Journal of Geophysical Research: Solid Earth<, 124, 11549-11567.
    • UU-P07:
      • Amaru, M.L., 2007, Global travel time tomography with 3-D reference models: Geologica Ultraiectina, 274, 174p.
      • Hall, R., and Spakman, W., 2015, Mantle structure and tectonic history of SE Asia: Tectonophysics, 658, 14-45.

Updated: December 06, 2024 (c) Thorsten Becker, 1997-2024.