Heterogeneous strain in earth deformation

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Reilly, W.I. 1986 Heterogeneous strain in earth deformation. [s.l.]: [s.n.]. Report / Geophysics Division 210 36 p.

Abstract: The deformation of the earth's crust can often be satisfactorily described in terms of continuum mechanics. At a point the differential motion of particles is characterised by the first spatial derivative of the particle velocity, a second-rank tensor of nine dependent components. Variation from point to point is characterised by the second spatial derivative of the particle velocity, i.e. the the 18 independent components of the third-rank tensor of heterogeneous strain. This latter can be interpreted in terms of of four classes of functions which variously describe the bending of lines and the warping of surfaces. (auth)