Core-Mantle Interface - Thermodynamics and chemistry

A 5-year multidisciplinary project funded by the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) / ERC Grant agreement 240473.

CoMITAC and related publications

  1. Nowacki, A., J.-M. Kendall, J. Wookey & A. Permberton. Mid-mantle anisotropy in subduction zones and deep water transport. Geochem. Geophys. Geosyst., 16, 2015. doi:10.1002.2014GC005667
  2. Walpole, J., J. Wookey, G. Masters & J.-M. Kendall. A uniformly processed data set of SKS shear wave splitting measurements: A global investigation of upper mantle anisotropy beneath seismic stations. Geochem. Geophys. Geosyst., 15, 2014. doi:10.1002/2014GC005278
  3. Ammann, M. W., A. M. Walker, S. Stackhouse, J. Wookey, A. M. Forte, J. P. Brodholt & D. P. Dobson. Variation of thermal conductivity and heat flux at the Earth's core mantle boundary. Earth and Planetary Science Letters, 390, 175-185, 2014. doi:10.1016/j.epsl.2014.01.009
  4. Di Leo, J. F., A. M. Walker, Z.-H. Li, J. Wookey, N. M. Ribe, J.-M. Kendall & A. Tommasi. Development of texture and seismic anisotropy during the onset of subduction. Geochemistry, Geophysics, Geosystems, 15, 2014. doi:10.1002/2013GC005032
  5. Nowacki, A., A.M. Walker, J. Wookey & J.-M. Kendall. Evaluating post-perovskite as a cause of D″ anisotropy in regions of palaeosubduction. Geophys. J. Int., 192, 1085–1090, 2013. doi:10.1093/gji/ggs068 PDF Supporting information
  6. Dobson, D. P., N. Miyajima, F. Nestola, M. Alvaro, N. Casati, C. Liebske, I. G. Wood & A. M. Walker. Strong texture inheritance between perovskite and post-perovskite in the D″ layer. Nature Geoscience, 6, 575-578, 2013. doi:10.1038/NGEO1844
  7. de Jong, W. A., A. M. Walker & M. D. Hanwel. From data to analysis: linking NWChem and Avogadro with the syntax and semantics of Chemical Markup Language. Journal of Cheminfomatics, 5, 25, 2013. doi: 10.1186/1758-2946-5-25
  8. Wookey, J. Direct probabilistic inversion of shear wave data for seismic anisotropy. Geophys. J. Int., 189, 1025–1037, 2012. doi:10.1111/j.1365-246X.2012.05405.x
  9. Walker, A.M., & J. Wookey. MSAT - A new toolkit for the analysis of elastic and seismic anisotropy. Computers and Geosciences, 49, 81–90, 2012. doi:10.1016/j.cageo.2012.05.031
  10. Walker, A.M. Limits of the power law. Nature (News & Views), 481, 153–154, 2012. doi:10.1038/481153a
  11. Walker, A., A. M. Forte, J. Wookey, A. Nowacki, & J.-M. Kendall. Elastic anisotropy of D″ predicted from global models of mantle flow. Geochem. Geophys. Geosyst., 12, Q10006. doi:10.1029/2011GC003732 PDF Download the accompanying models.
  12. Walker, A.M. The effect of pressure on the elastic properties and seismic anisotropy of diopside and jadeite from atomic scale simulation. Phys. Earth Planet. Int., 192–193, 81–89, 2012. doi:10.1016/j.pepi.2011.10.002 PDF
  13. Nowacki, A, J.-M. Kendall, J. & Wookey. Mantle anisotropy beneath the Earth’s mid-ocean ridges, Earth Planet. Sci. Lett., 317–318, 56–67, 2012. doi:10.1016/j.epsl.2011.11.044
  14. Walker, A., A. M. Forte, J. Wookey, A. Nowacki, and J.-M. Kendall. Elastic anisotropy of D″ predicted from global models of mantle flow. Geochem. Geophys. Geosyst., 12, Q10006, 2011. doi:10.1029/2011GC003732. PDF Download the accompanying models.
  15. Nowacki, A.J., J. Wookey, & J.-M. Kendall. New advances in using seismic anisotropy, mineral physics and geodynamics to understand deformation in the lowermost mantle. J. Geod., 52, 205–228, 2011. doi:10.1016/j.jog.2011.04.003
  16. Thomas, C, J. Wookey, J.P. Brodholt, & T. Fieseler. Anisotropy as cause for polarity reversals of D″ reflections. Earth Planet. Sci. Lett., 307, 369–376, 2011. doi:10.1016/j.epsl.2011.05.011
  17. Ammann, M.W., J.P. Brodholt, J. Wookey, & D.P. Dobson. First-principles constraints on diffusion in lower-mantle minerals and a weak D″ layer. Nature, 465, 462–465, 2010. doi:10.1038/nature09052
  18. Nowacki, A., J. Wookey, & J.-M.Kendall. Deformation of the lowermost mantle from seismic anisotropy. Nature, 467, 1091–1094, 2010. doi:10.1038/nature09507
  19. Teanby, N.A. & J. Wookey. Seismic detection of meteorite impacts on Mars, Phys. Earth Planet. Inter., 186, 70–80, 2011. doi:10.1016/j.pepi.2011.03.004
  20. Hunt, S.A., D.R. Davies, A.M. Walker, R. McCormack, A.S. Wills, D.P. Dobson & L. Li On the increase in thermal diffusivity caused by the perovskite to post–perovskite phase transition and its implications for mantle dynamics. Earth Planet. Sci. Lett., 319–320, 96–105, 2012 doi:10.1016/j.epsl.2011.12.009
  21. Hunt, S.A., A.M. Walker, R. McCormack, D.P. Dobson, A.S. Wills & L. Li. The effect of pressure on thermal diffusivity in pyroxenes. Mineralogical Magazine, 75, 2597–2610, 2011. doi:10.1180/minmag.2011.075.5.2597
  22. Tailby, N.D., A.M. Walker, A.J. Berry J. Hermann, K.A. Evans, J.A. Mavrogenes, H.St.C. ONeill, I.S. Rodina, A.V. Soldatov, D. Rubatto & S.R. Sutton. Ti site occupancy in zircon Geochimica et Cosmochimica Acta, 75, 905–921, 2011. doi:10.1016/j.gca.2010.11.004
  23. Kleese van Dam, K., M. James, & A.M. Walker. Integrating data management and collaborative sharing with computational science processes in J. Leng & W. Sharrok (eds.) Handbook of Research on Computational Science and Engineering: Theory and Practice, 1, 506–538 IGI Global, 2011. doi:10.4018/978-1-61350-116-0.ch021
  24. Di Leo, J.F., J. Wookey, J.O.S. Hammond, J.-M. Kendall, S. Kaneshima, H. Inoue, T. Yamashina P. & Harjadi. Deformation and mantle flow beneath the Sangihe subduction zone from seismic anisotropy, Phys. Earth Planet. Int, 194–195, 38–54, 2012. doi:10.1016/j.pepi.2012.01.008
  25. Wuestefeld, A., J.P. Verdon, J.-M. Kendall, J. Rutledge, H. Clarke & J. Wookey. Inferring rock fracture evolution during reservoir stimulation from seismic anisotropy, Geophysics, 76, 158–169, 2011. doi:10.1190/GEO2011-0057.1
  26. Bastow, I.D., Kendall, J-M, Brisbourne, A.M., Snyder, D.B., Hawthorn, D., Helffrich, GR, Wookey, J, Thompson, DA & Eaton, D.W. The Hudson Bay Lithospheric Experiment: A Remote Success in Arctic Canada, Astronomy and Geophysics, 52, 21–24, 2011. doi:10.1111/j.1468-4004.2011.52621.x
  27. Bastow, I.D., D.A. Thompson, J. Wookey, J.-M. Kendall, G.R. Helffrich, D.B. Snyder, D.W. Eaton & F.A. Darbyshire. Precambrian Plate Tectonics: Seismic Evidence from Northern Hudson Bay, Geology, 39, 91–94, 2011. doi:10.1130/G31396.1
  28. Pawlak, A., D.W. Eaton, I.D. Bastow, J.-M. Kendall, G.R. Helffrich, J. Wookey & D.B. Snyder, D. Crustal structure beneath Hudson Bay from ambient-noise tomography: Implications for basin formation, Geophys. J. Int, 184, 65–82, 2011. doi:10.1111/j.1365-246X.2010.04828.x
  29. Thompson, D.A., G.R. Helffrich, I.D. Bastow, J.-M. Kendall, J. Wookey, D.W. Eaton & D.B. Snyder. Implications of a simple mantle transition zone beneath cratonic North America, Earth and Planetary Science Letters, 312, 28–36, 2011. doi:10.1016/j.epsl.2011.09.037
  30. Hammond, J.O.S., J.-M. Kendall, D. Angus & J. Wookey. Interpreting spatial variations in anisotropy: Insights into the Main Ethiopian Rift from SKS waveform modeling, Geophys. J. Int, 181, 1701–1712, 2010. doi:10.1111/j.1365-246X.2010.04587.x
  31. Thompson, D.A., I.D. Bastow, G.R. Helffrich, J.-M. Kendall, J. Wookey, D.B. Snyder & D.W. Eaton. Precambrian Crustal Evolution: Seismic Constraints from the Canadian Shield, Earth and Planetary Science Letters, 297, 655–666, 2010. doi:10.1016/j.epsl.2010.07.021
  32. Wuestefeld, A., O. Al-Harrasi, J.P. Verdon, J. Wookey & J.-M. Kendall. A strategy for automated analysis of passive microseismic data to image seismic anisotropy and fracture characteristics, Geophysical Prospecting, 58, (pp. 755–773), 2010. doi:10.1111/j.1365-2478.2010.00891.x
  33. Wookey, J. & D.P. Dobson. Between a rock and a hot place: the core-mantle boundary. Phil. Trans. Roy. Soc. A, 366, 4543–4557, 2008. doi:10.1098/rsta.2008.0184
  34. Wookey, J. & J.-M. Kendall. Constraints on lowermost mantle mineralogy and fabric beneath Siberia from seismic anisotropy. Earth Planet. Sci. Lett., 275, 32–42, 2008. doi:10.1016/j.epsl.2008.07.049