Abstract—
The problem of the development of thermomechanical waves in the system consisting of two horizontal layers with rheology of a linearly elastic medium for the upper layer (lithosphere) and a viscous fluid for the lower layer (asthenosphere) is considered with regard to phase transition on their common boundary. The exact solution to the problem is found and its properties as functions of the parameters are studied. It is shown that for the characteristic physical parameters of the lithosphere and asthenosphere there exist solutions in the form of moderately damped strain tectonic waves and a geophysical interpretation of the results obtained is given.
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The work was carried out within the framework of the state tasks of Shirshov Institute of Oceanology of the Russian Academy of Sciences (theme no. 0128-2021-0004) and the Institute for Geothermics Problems and Renewable Energetics, Affiliation Branch of the Joint Institute for High Temperatures of the Russian Academy of Sciences (theme no. AAAA-A19-119111390085-7).
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Translated by E.A. Pushkar
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Lobkovsky, L.I., Ramazanov, M.M. Thermomechanical Waves in the Elastic Lithosphere–Viscous Asthenosphere System. Fluid Dyn 56, 765–779 (2021). https://doi.org/10.1134/S0015462821060100
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DOI: https://doi.org/10.1134/S0015462821060100