MODE COUPLING IN A VISCOELASTIC SELF-GRAVITATING SPHERICAL EARTH INDUCED BY AXISYMMETRIC LOADS AND LATERAL VISCOSITY VARIATIONS
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dc.contributor.author | Wu P. | |
dc.date.accessioned | 2021-04-21T04:39:50Z | |
dc.date.available | 2021-04-21T04:39:50Z | |
dc.date.issued | 2002 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=1238809 | |
dc.identifier.citation | Earth and Planetary Science Letters, 2002, 202, 1, 49-60 | |
dc.identifier.issn | 0012-821X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/28207 | |
dc.description.abstract | The importance of mode coupling in a viscoelastic self-gravitating spherical earth with lateral variations in linear or nonlinear rheology is investigated with a finite-element model coupled to Poisson's equation. Both the lateral viscosity variations and the harmonic load are axisymmetric. The effects of self-gravitation, viscosity contrast and the location of the abrupt lateral change in viscosity in a linear mantle are studied and are found to be significant in determining the strength of mode coupling. It is demonstrated that a larger number of harmonics than generally assumed is required to give accurate description of the induced deformation. Mode coupling is also found to be important in a nonlinear mantle especially when the harmonic degree l is large. | |
dc.subject | GLACIAL REBOUND | |
dc.subject | MANTLE DYNAMICS | |
dc.subject | RHEOLOGY | |
dc.subject | VISCOELASTICITY | |
dc.subject | LATERAL HETEROGENEITY | |
dc.title | MODE COUPLING IN A VISCOELASTIC SELF-GRAVITATING SPHERICAL EARTH INDUCED BY AXISYMMETRIC LOADS AND LATERAL VISCOSITY VARIATIONS | |
dc.type | Статья |
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