Wang JN, Hobbs BE, Ord A, Shimamoto T, Toriumi M. Newtonian Dislocation Creep in Quartzites: Implications for the Rheology of the Lower Crust.
Science 1994;
265:1204-6. [PMID:
17787584 DOI:
10.1126/science.265.5176.1204]
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Abstract
Mechanical and microstructural evidence indicates that a natural and a synthetic quartzite deformed by Newtonian dislocation (Harper-Dorn) creep at temperatures higher than 1073 K and stresses lower than 300 megapascals. The observation of this creep in these materials suggests that the lower crust may flow like a Newtonian viscous fluid by a dislocation mechanism at stresses much smaller than those previously postulated.
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