Neutron Scattering

(3) Preferred orientations of the first order prisms {m} (10-10) show a pronounced concentration
parallel to the lineation direction .
(4) Poles ofthe positive and negative rhombs {r} (10-11) and {z} (01-11) show a tendency of
symmetry in their alignment with respect to the shear plane .
Structural geologists compare those local quartzite textures (1) wich the texture of other rocks
ofthe saure region in order to recognize the regional tectonic transport direction (which in our
example was east - east south east), and (2) with the texture of quartzites of different geological
origin in order to recognize quartz-specific deformation mechanisms.
References
[1] H.J . Bunge, Texture Analysis in Materials Science, Butterworth & Co ., 1982 .
[2] H.-R . Wenk, Preferred Orientation in Deformed Metals and Rocks : An Introduction to
Modern Texture Analysis, Academic Press, 1985 .
[3] U.F . Kocks, C.N . Tomé, H.-R. Wenk, Texture and Anisotropy : Cambridge U . Press, 1998
[4] H.J . Bunge, Directional Properties of Materials, DGM Informationsgesellschaft, 1987 .
[5] H.-R. Wenk, H . Kern, W . Schäfer, G. Will, J . Structural Geology 6 (1984) 687 .
[6] H.J . Bunge, Theoretical Methods of Texture Analysis, Verlag DGM Informationsg . 1987 .
[7] D. Ruer, R. Baro, J. Appl. Cryst. 10 (1977) 458 ;
[8] H. Schaeben, Diskrete mathematische Methoden zur Berechnung und Interpretation von
kristallographischen Orientierungsdichten", Verlag DGM Informationsgesellschaft, 1994 .
[9] S . Matthies, H .-R . Wenk, G.W. Vinel, J. Appl . Cryst. 21 (1988) 285 .
[10] K. Helming, Texturapproximation durch Modellkomponenten, Cuvillier-Verlag, 1996 .
[11] E . Jansen, W . Schäfer, A. Kirfel, J. Palacios, Mat . Science Forum 278-281 (1998) 502 .
[12] H. Mecking in [2] pp . 267-306
[13] K. Helming, H.R. Wenk, C .S . Choi, W . Schäfer, in Textures of Geological Materials
(ed. H.J . Bunge et al .), Verlag DGM Informationsgesellschaft, 1994, pp . 303-325 .
[14] W. Schäfer, E . Jansen, P . Merz, G. Will, H.R . Wenk, Physica B 180 & 181 (1992) 1035 .
[15] H. Ghildiyal, E . Jansen, A. Kirfel, Textures and Microstructures 31 (1999) 239.