title: Newtonian dislocation creep in quartzites: implications for the rheology of the lower crust.
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.
authors.forename: J N
authors.initials: JN
authors.lastname: Wang
authors.forename: B E
authors.initials: BE
authors.lastname: Hobbs
authors.forename: A
authors.initials: A
authors.lastname: Ord
authors.forename: T
authors.initials: T
authors.lastname: Shimamoto
authors.forename: M
authors.initials: M
authors.lastname: Toriumi