Piazolo, S., Jessell, M., Bons, P. and Evans, L. 2001.   Animations of dynamic recrystallization with the numerical modelling system Elle. In: (Ed.) Laurent Aillères, and Tim Rawling, Animations in Geology, Journal of the Virtual Explorer, Electronic Edition, ISSN 1441-8142, volume 4, paper 8, doi:10.3809/jvirtex.2001.00035

Animations of dynamic recrystallization with the numerical modelling system Elle

Sandra Piazolo

Johannes Gutenberg-University, Department for Earth Science, FB 22, Becherweg 21 D-55099 Mainz, Germany

Present Address: Department of Geology and Geochemistry, Stockholm University, 106 91 Stockholm, Sweden

Mark W. Jessell

Epsilon Laboratory, Department of Earth Sciences, Monash University, Clayton, Victoria, 3168, Australia

Present address: LMTG - Laboratoire des Mécanismes et Transferts en Géologie, CNRS Université Paul-Sabatier IRD, Observatoire Midi-Pyrénées - 14, avenue Edouard Belin - 31400 Toulouse, France

Paul D. Bons

Johannes Gutenberg-University, Department for Earth Science, FB 22, Becherweg 21 D-55099 Mainz, Germany

Epsilon Laboratory, Department of Earth Sciences, Monash University, Clayton, Victoria, 3168, Australia

Present address: Institut für Geowissenschaften, Sigwartstraβe 10, D-72076 Tübingen, Germany

Lynn Evans

Epsilon Laboratory, Department of Earth Sciences, Monash University, Clayton, Victoria, 3168, Australia

Abstract

The visualization of the development of microstructures during progressive deformation is a powerful tool both in geological education and in the advancement of understanding of processes. In this contribution a numerical modelling system is briefly explained. The use of this program is illustrated by two sets of numerical animations simulating the effect of dynamic recrystallization on the microstructural development of a quartzite are shown. The movies depict the changes in grain shape, grain size, dislocation density and crystallographic orientation of grains during progressive deformation. Such simulations can help to gain a better understanding of the interaction of concurrent processes on the microstructural development of a rock and vice versa. With this better understanding, microstructures observed in rocks may now be interpreted in a more quantitative way.

Keywords: dynamic recrystallization, numerical modelling, animations, microstructure

Table of Contents

Introduction
The numerical modeling system Elle - general description
Specific model used
General features seen in movies
Summary and Conclusions
Acknowledgements
References
Appendix A. Description of model
Appendix B. Values used
Appendix C. Reference list for Appendix A and B
List of Figures
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