By D J Prior, E H Rutter, D J Tatham

This choice of papers provides contemporary advances within the research of deformation mechanisms and rheology and their purposes to tectonics. a number of the contributions make the most new petrofabric suggestions, rather electron backscatter diffraction, to aid comprehend the evolution of rock microstructure and mechanical houses. Papers within the first part (lattice most well-liked orientations and anisotropy ) exhibit a growing to be emphasis at the selection of elastic homes from petrofabrics, from which acoustic homes should be computed for comparability with in-situ seismic measurements. Such examine will underpin geodynamic interpretation of large-scale energetic tectonics. Contributions within the moment part (microstructures, mechanisms and rheology) research the family members among microstructural evolution in the course of deformation and mechanical homes. a few of the papers discover how assorted mechanisms compete and engage to regulate the evolution of grain measurement and petrofabrics. members utilize mixtures of laboratory experiments, box stories and computational equipment, and a number of other relate microstructural and mechanical evolution to large-scale tectonic methods saw in nature.

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Additional resources for Deformation Mechanisms, Rheology and Tectonics: Microstructures, Mechanics and Anisotropy (Geological Society Special Publication 360)

Sample text

1029/2001GL014285. Olsen, T. & Kohlstedt, D. 1984. Analysis of dislocations in some naturally deformed plagioclase feldspars. Physics and Chemistry of Minerals, 11, 153– 160. Olsen, T. & Kohlstedt, D. 1985. Natural deformation and recrystallisation of some intermediate plagioclase feldspars. Tectonophysics, 111, 107 –131. Ozacar, A. A. & Zandt, G. 2004. Crustal seismic anisotropy in central Tibet: implications for deformation style and flow in the crust. 1029/2004GL021096. Passchier, C. W. & Trouw, R.

10b). Indeed, for most compositions it is smaller than the azimuthally independent absolute P-wave anisotropy. e. Vs1P) is not constant and changes through 908 as the composition changes from felsic to intermediate, beyond which it remains constant. This behaviour of Vs1P clearly reflects the increasing influence of the amphibole (hornblende). From Figure 8b, this would indicate not only a horizontal foliation/layering (as initially defined) but also an ‘east –west’ (in the arbitrary coordinate system assumed) tectonic Y-direction and hence a ‘north– south’ oriented lineation.

Wheeler, J. & Prior, D. J. 2002. The deformation of plagioclase investigated using electron backscatter diffraction crystallographic preferred orientation data. Journal of Structural Geology, 24, 387– 399. Lister, G. & Dornsiepen, U. 1982. Fabric transitions in the Saxony granulite terrane. Journal of Structural Geology, 4, 81–92. Lister, G. S. & Hobbs, B. E. 1980. The simulation of fabric development during plastic deformation and its application to quartzite – the influence of deformation history.

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