Importance of lateral viscosity variations in the whole mantle for modelling of the dynamic geoid and surface velocities

Journal of Geodynamics

Volumn 43, Issue 2, 2007, Pages 262-273

  Kaban, Mikhail K ^a,b   Rogozhina, Irina ^a   Trubitsyn, Valeriy ^a,b  

^a GFZ GERMAN RESEARCH CENTRE FOR GEOSCIENCES   (Germany)

^b SCHMIDT INSTITUTE OF PHYSICS OF THE EARTH   (Russian Federation)

Author keywords

Geoid modelling; Mantle flow velocities; Mantle viscosity

Indexed keywords

ASTHENOSPHERE; FLOW VELOCITY; GEOID; LEAST SQUARES METHOD; LITHOSPHERE; MANTLE; MODELING; SEISMIC TOMOGRAPHY; TOROIDAL FIELD; VISCOSITY;

EID: 33846657465     PISSN: 02643707     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jog.2006.09.020     Document Type: Article

References (27)

1. Čadek O., and Fleitout L. A global geoid model with imposed plate velocities and partial layering. J. Geophys. Res. 104 12 (1999) 29055-29075
2. Čadek O., and Fleitout L. Effect of lateral viscosity variations in the top 300 km on the geoid and dynamic topography. Geophys. J. Int. 152 3 (2003) 566-580
3. Corrieu V., Ricard Y., and Froidevaux C. Converting mantle tomography into mass anomalies to predict the Earth's radial viscosity. Phys. Earth Planet. Int. 84 1-4 (1994) 3-13
4. Corrieu V., Thoraval C., and Ricard Y. Mantle dynamics and geoid Green functions. Geophys. J. Int. 120 2 (1995) 516-523
5. Ekstrom G., and Dziewonski A.M. The unique anisotropy of the Pacific upper mantle. Nature 394 6689 (1998) 168-172
6. Forte A.M., and Peltier W.R. Plate tectonics and aspherical Earth structure: the importance of poloidal-toroidal coupling. J. Geophys. Res. 92 B5 (1987) 3645-3679
7. Forte A.M., and Perry H.K.C. Geodynamic evidence for a chemically depleted continental tectonosphere. Science 290 5498 (2000) 1940-1944
8. Hager B.H., and O'Connell R.J. A simple global model of plate dynamics and mantle convection. J. Geophys. Res. 86 (1981) 4843-4867
9. s and density at different depths. Geophys. J. Int. 147 1 (2001) 199-214
10. Kaban M.K., Schwintzer P., and Reigber Ch. A new isostatic model of the lithosphere and gravity field. J. Geodesy 78 6 (2004) 368-385
11. Karato S. Importance of anelasticity in the interpretation of seismic tomography. Geophys. Res. Lett. 20 (1993) 1623-1626
12. Karpychev M., and Fleitout L. Long-wavelengh geoid: the effect of continental roots and lithosphere thickness variations. Geophys. J. Int. 143 (2000) 945-963
13. King S.D., and Masters G. An inversion for radial viscosity structure using seismic tomography. Geophys. Res. Lett. 19 15 (1992) 1551-1554
14. Koch D.M., and Ribe N.M. The effect of lateral viscosity variations on surface observables. Geophys. Res. Lett. 16 6 (1989) 535-538
15. Mound J.E., Mitrovica J.X., and Forte A.M. The equilibrium form of a rotating earth with an elastic shell. Geophys. J. Int. 152 (2003) 237-241
16. Nakiboglu S.M. Hydrostatic theory of the Earth and its mechanical implications. Phys. Earth Planet. Int. 28 4 (1982) 302-311
17. Panasyuk S.V., Hager B.H., and Forte A.M. Understanding the effects of mantle compressibility on geoid kernels. Geophys. J. Int. 124 1 (1996) 121-133
18. Panasyuk S.V., and Hager B.H. Inversion for mantle viscosity profiles constrained by dynamic topography and the geoid, and their estimated errors. Geophys. J. Int. 143 3 (2000) 821-836
19. Paulson A., Zhong S., and Wahr J. Modeling post-glacial rebound with lateral viscosity variations. Geophys. J. Int. 163 (2005) 357-371
20. Ribe N.M. The dynamics of thin shells with variable viscosity and the origin of toroidal flow in the mantle. Geophys. J. Int. 110 (1992) 537-552
21. Ricard Y., Fleitout L., and Froidevaux C. Geoid heights and lithospheric stresses for a dynamic Earth. Annal. Geoph. 2 3 (1984) 267-286
22. Richards M.A., and Hager B.H. Geoid anomalies in a dynamic earth. J. Geophys. Res. 89 B7 (1984) 5987-6002
23. Richards M.A., and Hager B.H. Effects of lateral viscosity variations on long-wavelength geoid anomalies and topography. J. Geophys. Res. 94 B8 (1989) 10299-10313
24. Richards M.A., Yang W.S., Baumgardner J.R., and Bunge H.P. Role of a low-viscosity zone in stabilizing plate tectonics: implications for comparative terrestrial planetology. Geochem. Geophys. Geosyst. 2 (2001) 2000GC000115
25. Schubert G., Turcotte D.L., and Olson P. Mantle Convection in the Earth and Planets (2001), Cambridge Univ. Press, Cambridge, UK p. 940
26. Yamazaki D., and Karato S.I. Some mineral physics constraints on the rheology and geothermal structure of Earth's lower mantle. Am. Mineral. 86 4 (2001) 385-391
27. Zhang S., and Christensen U. Some effects of lateral viscosity variations on geoid and surface velocities induced by density anomalies in the mantle. Geophys. J. Int. 114 (1993) 547-551