Studies in a segment of the Tancheng-Lujiang fault zone show that it is a major transcurrent ductile shear zone with a considerable sinistral displacement. The formations (Pt→T1+2) at depths of 5 to 15 km may have cropped out in this area during subsequent erosion. Many ductilely deformed structures are in it. The deformed zone was formed during the Indo-Sinian orogeny. On the basis of measurements and analyses of many deformed pebbles within the shear zone, it is suggested that the deformation in the zone studied may be catagorized as a variation of simple shear and plane strain with a constant volume. The intensely deformed belt is generally 40 to 50 km wide, with the average strain ratio 27.68 and the maximum greater than 87.37. From analysis of elongation strain, we estimate that the deformed belt has been elongated by 164.23 km and narrowed by 222.5 km. The internal belt was formed by a high shear strain γ, calculated to be more than 11.34. The deformed belt is associated with syntectonic dynamothermal metamorphism, represented by greenschist facies and retrogressive metamorphism on previous amphibolite facies.
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Bak, J., Korstgård, J. andSørensen, K. (1975),A major shear zone within the Nagssugtoqidian of west Greenland Tectonophys.27, 191–209.
Berthe, D., Choukroune, P. andJegouzo, P. (1979),Orthogneiss: The example of the South American shear zone. J. Struct. Geol.1, No. 1, 31–42.
Billings, M. P.,Structural Geology. Prentice-Hall, New Jersey, 1972, p. 606.
Crowell, J. C. (1963),The San-Andreas fault system. Trans. Amer. Geophys. Union,44, No. 2.
Durney, D. W. andRamsay, J. G., ‘Increment strains measured by syntectonic crystal growths,’ inGravity and Tectonics. John Wiley, 1973, p. 67–96.
Grocott, J. (1977),The relationship between Precambrian shear belts and modern fault systems. J. Geol. Soc.133, No. 3, 257–262.
He, S. X. (1981),Strain analyses of deformed rocks. Special paper, Central-South Institute of Mining and Metallurgy, p. 130.
Hills, E.,Element of Structural Geology. Methuen, 1972, p. 483.
Hobbs, B. E., Means, W. D. andWilliams, P. F.,An Outline of Structural Geology. John Wiley, 1976, p. 340.
Mattauer, M. andMercier, J. L. (1980),Microtectonique et grande tectonique. Mem. H. ser. Soc. geol. de France, N. 10.
Means, W. D.,Stress and Strain. Springer-Verlag, New York, McGraw-Hill, 1976, p. 310.
Mitra, G. (1979),Ductile deformation zones in Blue Ridge basement rocks and estimation of finite strains. Geol. Soc. Amer. Bull.90, 935–951.
Moody, J. D. andHill, M. J. (1956),Wrench fault tectonics. Geol. Soc. Amer. Bull.67, 1207–1246.
Ramsay, J. G.,Folding and Fracturing of Rocks. McGraw-Hill, New York, 1967, p. 568.
Ramsay, J. G. (1980),Shear zone geometry: A review. J. Struct. Geol.2, No. 1/2, 83–89.
Ramsay, J. G. andGraham, R. H. (1970),Strain variation in shear belt. Can. J. Earth Sci.7, No. 3, 786–813.
Serman, S. E. (1980),The physical laws of fracture developing in the earth's crust (from the Russian, translation in Chinese), ‘Earth quake’ Publ. House, Beijing, p. 143.
Sibson, R. H. (1977),Fault rocks and fault mechanisms. J. Geol. Soc.,133, Part 3, 191–213.
Wakefield, J. (1977),Mylonitization in the Lethakane shear zone, eastern Botswana. J. Geol. Soc.133, 263–375.
Xi, X. S. (1982),The structure features and development history of the ductile shear zones in Yongning region, Yangchun County, Guangdong province. J. Central-South Inst. Mining Metall. No. 4, Dec., 135–142 (in Chinese).
Xu, J. W. (1980a),The horizontal displacement of Tancheng-Lujiang fault zone and its geological significance, among scientific papers on geology for international exchange. Publ. House of Geol. Beijing, (1), 129–142 (in Chinese with English abstr.).
Xu, J. W. (1980b),The great left-lateral horizontal displacement of Tancheng-Lujiang fault zone, eastern China. J. Hefei Polytech. Univ. No. 1, March, 1–26 (in Chinese with English abstr.).
Xu, J. W. (1984), ‘The Tancheng-Lujiang wrench fault system,’ inCollection of Structural Geology. No. 3. Publ. House of Geol. Beijing, p. 18–33 (in Chinese with English abstr.).
Xu, J. W., Cui, K. R., Liu, Q., Tong, W. X. andZhu, G. (1985),Mesozoic sinistral transcurrent faulting along the continent margin in eastern Asia. Marine geol. Quatern. Geol.5, No. 2, 51–64 (in Chinese with English abstr.).
Zhang, Z. T. (1982),The plastic fault and the plastic deformation zone of fault. Bull. Xi'an Inst. Geol. Min. Res., Chinese Acad. Geol. Sci., No. 4, 94–101 (in Chinese).
Zhang, Y. X. andLi, L. L. (1984), ‘The giant strike slip along Tancheng-Lujiang fault zone and its influence on the nearby structures,’ in ‘Collection of Structural Geology,’ No. 3. Publ. House of Geol. Beijing, p. 1–8 (in Chinese).
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Xu, J., Wang, P., Ching, R. et al. Ductile deformation and regional strain field in the southern segment of the Tancheng-Lujiang fault zone, eastern China. PAGEOPH 124, 337–364 (1986). https://doi.org/10.1007/BF00875731
- Tancheng-Lujiang Fault zone
- ductile shearing
- regional strain field
- strain ratio
- tectonic levels