Quantitative structural analyses and numerical modelling of ...

ETG 6 - 14 SCHULMANN ET AL.: STRAIN DISTRIBUTIONwhere p 2 is ratio of the width of WDZ and the width of thewhole transpressional zone.Appendix D: Viscosity Partitioning[58] Viscosity partitioning assumes different strain ratesor different R vd , respectively, in two adjacent domains whilethe angle of convergence remains constant. The values ofR vd areR m 2for low-viscosity domain andr mvd ¼ R vd1 þ p 3 r m 1 ðD1Þvd ¼ R 1vd1 þ p 3 r m 1 ðD2ÞR m 1for high-viscosity domain, whereis viscosity contrast.r m ¼ m 1; ðm m 1 > m 2 Þ2[59] Acknowledgments. The Czech National Foundation grant 205/98/K004, the Grant Agency of Charles University grant 296/1997/B GEO,the Schweizerische National Fonds and ETH Research credits are gratefullyacknowledged for financial support. We thank Basil Tikoff and an anonymousreviewer for very helpful reviews.ReferencesBrown, M., and G. S. Solar, Shear-zone systems and melts: Feedbackrelations and self- organization in orogenic belts, J. Struct. 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