Glacial Isostasy, Sea-Level, and Mantle Rheology: Proceedings of the NATO Advanced Research Workshop on Glacial Isostasy, Sea-Level, and Mantle Rheo - Couverture rigide

Couverture rigide

ISBN 10 : 0792311671 ISBN 13 : 9780792311676

Editeur : Kluwer Academic Publishers, 1991

Synopsis

by K. Lambeck, R. Sabadini and E. B08Chi Viscosity is one of the important material properties of the Earth, controlling tectonic and dynamic processes such as mantle convection, isostasy, and glacial rebound. Yet it remains a poorly resolved parameter and basic questions such as whether the planet's response to loading is linear or non-linear, or what are its depth and lateral variations remain uncertain. Part of the answer to such questions lies in laboratory observations of the rheology of terrestrial materials. But the extrapolation of such measurements from the laboratory environment to the geological environment is a hazardous and vexing undertaking, for neither the time scales nor the strain rates characterizing the geological processes can be reproduced in the laboratory. General rules for this extrapolation are that if deformation is observed in the laboratory at a particular temperature, deformation in geological environments will occur at a much reduced temperature, and thatif at laboratory strain rates a particular deformation mechanism dominates over all others, the relative importance of possible mechanisms may be quite different at the geologically encountered strain rates. Hence experimental results are little more than guidelines as to how the Earth may respond to forces on long time scales.

Détails de l'édition

• Éditeur: Kluwer Academic Publishers
• Date d'édition: 1991
• Langue: anglais
• ISBN 10: 0792311671
• ISBN 13: 9780792311676
• Reliure: Relié
• Nombre de pages: 721
• Éditeur: Sabadini R., Lambeck K., Boschi E.
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