SELF-MODULATION OF THERMAL CONVECTION WAVES IN THE EARTH'S MANTLE
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dc.contributor.author | Birger B.I. | |
dc.date.accessioned | 2020-04-08T08:55:08Z | |
dc.date.available | 2020-04-08T08:55:08Z | |
dc.date.issued | 1988 | |
dc.identifier | https://elibrary.ru/item.asp?id=30953755 | |
dc.identifier.citation | TRANSACTIONS (DOKLADY) OF THE USSR ACADEMY OF SCIENCES. EARTH SCIENCE SECTIONS, 1988, 300, 3, 28-31 | |
dc.identifier.issn | 0891-5571 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/16450 | |
dc.description.abstract | The large-scale thermal convection that causes lithospheric plates to move generates in the upper part of each mantle cell a thermal boundary layer that travels at a constant speed without distortion. There is a strong vertical temperature gradient in their layer which makes it convectively unstable. To describe 'secondary' small-scale convection in the boundary layer which induces finite deformations in it, the author uses a linear rheological model with memory, corresponding to the case of unsteady-state creep of the mantle. Linear analysis of convective instability, in which the nonlinear terms are discarded from heat balance, leads to a solution in the form of convective waves. Conditions for the self-modulation of thermal convection waves are then determined and studied, and results are discussed. | |
dc.title | SELF-MODULATION OF THERMAL CONVECTION WAVES IN THE EARTH'S MANTLE | |
dc.type | Статья |
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