The Earth's Mantle: Evidence of Non-Newtonian Flow

Recent information from experimentally deformed dunite coupled with a reanalysis of data on the Fennoscandian postglacial rebound suggest that the rheological behavior of the upper mantle is distinctly non-Newtonian, and that the shear strain rate is proportional to the shear stress raised to about...

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Bibliographic Details
Published in:Science
Main Authors: Post, Robert L., Griggs, David T.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1973
Subjects:
Online Access:http://dx.doi.org/10.1126/science.181.4106.1242
https://www.science.org/doi/pdf/10.1126/science.181.4106.1242
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Summary:Recent information from experimentally deformed dunite coupled with a reanalysis of data on the Fennoscandian postglacial rebound suggest that the rheological behavior of the upper mantle is distinctly non-Newtonian, and that the shear strain rate is proportional to the shear stress raised to about the third power.