36. Pachhai, S., Thorne, M.S., and Nissen-Meyer, T. (2022) Quantification of small-scale heterogeneity at the core-mantle boundary using sample entropy of SKS and SPdKS synthetic waveforms, Minerals, 12, 813, doi: 10.3390/min12070813.

35. Pachhai, S., Li, M., Thorne, M.S., Dettmer, J., and Tkalcic H. (2022) Internal structure of ultralow-velocity zones consistent with origin from a basal magma ocean, Nature Geoscience , 15, 79-84, doi: 10.1038/s41561-021-00871-5. ( pdf - 13.4 Mb) ( Seismic waveform data)

34. Krier, J., Thorne, M.S., Leng, K., and Nissen-Meyer, T. (2021) A compositional component to the Samoa ultralow-velocity zone revealed through 2- and 3-D waveform modeling of SKS and SKKS differential travel-times and amplitudes, Journal of Geophysical Research - Solid Earth, 126, 1-20, doi: 10.1029/2021JB021897. ( pdf - 7.8 Mb )( Seismic waveform data)

33. Ward, J., Thorne, M.S., Nowacki, A., and Rost, S. (2021) Automatic slowness vector measurements of seismic arrivals with uncertainty estimates using bootstrap sampling, array methods and unsupervised learning, Geophysical Journal International, 226 (3), 1847-1857, doi: 10.1093/gji/ggab196. ( pdf - 2.5 Mb) ( Code)

32. Thorne, M.S., Leng, K., Pachhai, S., Rost, S., Wicks, J.K., and Nissen-Meyer, T. (2021) The most parsimonious ultralow-velocity zone distribution from highly anomalous SPdKS waveforms, Geochemistry, Geophysics, Geosystems, 22, doi: 10.1029/2020GC009467. ( pdf - 11.3 Mb) Supplements:(model download)

31. Thorne, M.S., Pachhai, S., Leng, K., Wicks, J.K., and Nissen-Meyer, T. (2020) New candidate ultralow-velocity zone locations from highly anomalous SPdKS waveforms, Minerals, 10 , 1-26, doi: 10.3390/min10030211. (pdf - 17 Mb).

30. Thorne, M.S., Takeuchi, N., and Shiomi, K. (2019) Melting at the Edge of a Slab in the Deepest Mantle, Geophysical Research Letters, 46 , 8000-8008, doi: 10.1029/2019GL082493. (pdf - 14 Mb).

29. Moore, J.R., Geimer, P.R., Finnegan, R., and Thorne, M.S. (2018) Use of seismic resonance measurements to determine the elastic modulus of freestanding rock masses, Rock Mechanics and Rock Engineering, pp. 1-8, doi: 10.1007/s00603-018-1554-6. (pdf - 2.6 Mb).

28. Haugland, S.M, Ritsema, J., Kaneshima, S., and Thorne, M.S. (2017) Estimate of the rigidity of eclogite in the lower mantle from waveform modeling of broadband S-to-P wave conversions, Geophysical Research Letters, 44, 1-7, doi: 10.1002/2017GL075463. (pdf -2.6 Mb).

27. Bentham, H.L.M, Rost, S., and Thorne, M.S. (2017) Fine-scale structure of the mid-mantle characterised by global stacks of PP precursors, Earth and Planetary Science Letters, 472, 164-173, doi: 10.1016/j.epsl.2017.05.027. (pdf - 2.4 Mb).

26. Vanacore, E.A., Rost, S., and Thorne, M.S. (2016) Ultralow-velocity zone geometries resolved by multidimensional waveform modelling, Geophysical Journal International, 206, 659-674, doi: 10.1093/gji/ggw114. (pdf - 10.0 Mb).

25. Moore, J.R., Thorne, M.S., Koper, K.D., Wood, J.R., Goddard, K., Burlacu, R., Doyle, S., Stanfield, E., and White, B. (2016) Anthropogenic sources stimulate resonance of a natural rock bridge, Geophysical Research Letters, 43, 9669-9676, doi: 10.1002/2016GL070088. (pdf - 1.4 Mb).

24. Whittaker, S., Thorne, M.S., Schmerr, N.C., and Miyagi, L. (2016), Seismic array constraints on the D" discontinuity beneath Central America, Journal of Geophysical Research - Solid Earth, 120, 1-18, doi: 10.1002/2015JB012392. (pdf -4.9 Mb) (Supplemental Online Material) (Data and Model).

23. Yao, Y., Whittaker, S., and Thorne, M.S. (2015), D" discontinuity structure benath the North Atlantic from Scd observations, Geophysical Research Letters, 42, 1-9, doi:10.1002/2015GL063989. (pdf- 2.1 Mb) (Supplemental Online Material) (Data-SAC Files).

22. Starr, A.M., Moore, J.R., and Thorne, M.S. (2015), Ambient resonance of Mesa Arch, Canyonlands National Park, Utah, Geophysical Research Letters, 42, 1-7, doi:10.1002/2015GL064917. (pdf - 1.1 Mb).

21. Brown, S.P., Thorne, M.S., Miyagi, L., and Rost, S. (2015), A compositional origin to ultralow-velocity zones, Geophysical Research Letters, 42, 1-7, doi:10.1002/2014GL062097. (pdf - 586 Kb) (Supplemental Online Material) (Data - Beams - SAC Files).

20. Jensen, K.J., Thorne, M.S., and Rost, S., (2013), SPdKS analysis of ultralow-velocity zones beneath the western Pacific, Geophysical Research Letters, 40, 1-5, doi:10.1002/grl.50877. (pdf - 2.21 Mb) (Supplemental Online Material).

19. Brown, S., and Thorne, M.S. (2013), Viterbi Sparse Spike Detection, Geophysics, 78 (4), V157-V169, doi:10.1190/GEO2012-0209.1. (pdf - 924 kb).

18. Schmerr, N.C., Kelly, B.M., and Thorne, M.S., (2013), Broadband array observations of the 300 km seismic discontinuity, Geophysical Research Letters, 40, 1-6, doi: 10.1002/grl.50257. (pdf - 645 kb).

17. Thorne, M.S., Crotwell, H.P., and Jahnke, G. (2013), An educational resource for visualizing the global seismic wavefield, Seismological Research Letters, 84 (4), 711-717, doi: 10.1785/0220120134. (pdf - 568 kb).

16. Thorne, M.S., Zhang, Y., and Ritsema, J. (2013), Evaluation of 1D and 3D seismic models of the Pacific lower mantle with S, SKS, and SKKS traveltimes and amplitudes, Journal of Geophysical Research, 118, 1-11; doi: 10.1029/2012JB009676. (pdf - 6.5 Mb)

15. Thorne, M.S., Garnero, E.J., Jahnke, G., Igel, H., McNamara, A.K., (2013), Mega Ultra Low Velocity Zone and Mantle Flow, Earth and Planetary Science Letters, 364, 59-67, doi: 10.1016/j.epsl.2012.12.034. (pdf - 1.5 Mb) (Supplementary Online Material) (Data - SAC files)

14. Ford, S.R., Garnero, E.J., Thorne, M.S., Differential t* measurements via instantaneous frequency matching: Observations of lower mantle shear attenuation heterogeneity beneath western Central America, Geophysical Journal International, 189, 513-523, doi:10.1111/j.1365-246X.2011.05348.x, 2012. (pdf - 665 Kb)

13. Rost, S., Garnero, E.J, Thorne, M.S., Hutko, A.R., On the absence of an ultralow-velocity zone in the North Pacific, Journal of Geophysical Research, 115, B04312, doi:10.1029/2009JB006420, 2010. (pdf - 3.8 Mb)

12. Zhang, Y., Ritsema, J., Thorne, M.S., Modeling the ratios of SKKS and SKS amplitudes with ultra-low velocity zones at the core-mantle boundary, Geophysical Research Letters, 36, L19303, doi:10.1029/2009GL040030, 2009. (pdf - 337 kb)

11. Jahnke, G., Thorne, M.S., Cochard, A., Igel, H., Global SH-wave propagation using a parallel axi-symmetric spherical finite-difference scheme: application to whole mantle scattering, Geophysical Journal International, doi: 10.1111/j.1365-246X.2008.03744.x, 2008. (pdf - 747 kb)

10. Yang, X., Lay, T., Xie, X.-B., Thorne, M.S., Geometric Spreading of Pn and Sn in a Spherical Earth Model, Bulletin of the Seismological Society of America (97), pp. 2053-2065, doi: 10.1785/0120070031, 2007. (pdf - 700 kb)

9. Garnero, E.J., and Thorne, M.S., Earth's ULVZ: Ultra-Low Velocity Zone, In: Encyclopedia of Geomagnetism and Paleomagnetism (David Gubbins and Emilio Herrero-Bervera, Editors), Kluwer Publishing, The Netherlands, available May 2007. (pdf preprint- 1.2 Mb)

8. Thorne, M.S., Lay, T., Garnero, E.J., Jahnke, G., Igel, H., Seismic imaging of the laterally varying D" region beneath the Cocos Plate, Geophysical Journal International (170), pp. 635-648, doi: 10.1111/j.1365-246X.2006.03279.x, 2007. (pdf - 9.8 Mb)

7. Garnero, E.J, Thorne, M.S., McNamara, A., Rost, S., Fine scale ultra-low velocity zone layering at the core-mantle boundary and superplumes, In: D. Yuen et al. (eds.), Superplumes: Beyond Plate Tectonics, Springer, New York, pp. 139-158, 2007. (pdf - 16.3 Mb)

6. Lay, T., Hernlund, J., Garnero, E.J., Thorne, M.S., A lens of post-perovskite and CMB heat flux in an iron-rich pile in D" beneath the Central Pacific, Science (314), 1272-1276, 2006. (pdf - 323 kb) (online supplemental material - 1.6 Mb)

5. Rost, S., Thorne, M.S., Garnero, E.J., Imaging global seismic phase arrivals by stacking array processed short-period data, Seismological Research Letters, 77 (6), 2006. (pdf -5.6 Mb) (supplemental online material)

4. Thorne, M.S., Broadband waveform modeling of deep mantle structure, Ph.D. Dissertation, Arizona State University, 2005. (pdf - 7.5 Mb)

3. Thorne, M.S., and E.J. Garnero, Inferences on ultralow-velocity zone structure from a global analysis of SPdKS waves, Journal of Geophysical Research – Solid Earth, 109, B08301, doi:10.1029/2004JB003010, 2004. (pdf - 4 Mb) (online supplemental materials)

2. Thorne, M.S., Garnero, E.J., and S. Grand, Geographic correlation between hot spots and deep mantle lateral shear-wave velocity gradients, Physics of the Earth and Planetary Interiors, 146, 47-63, 2004. (pdf -778 kb)

1. Ashbridge, D.A., Thorne, M.S., Rivers, M.L., Muccino, J.C., and O'Day, P.A., Image optimization and analysis of synchrotron X-ray computed microtomography (CμT) data, Computers & Geosciences 29 (7), 823-836, Aug, 2003. (pdf - 700 kb)



  • email: michael.thorne at