1. 1. Klimetz, M. P. Tectonics 2, 139–166 (1983). 2. Zhang, Z. M., Liou, J. G. & Coleman, R. G. Geol. Soc. Am. Bull. 95, 295–312 (1984). 3. Mattauer, M. et al Nature 327, 496–500 (1985). 4. Zhang, W. Y. & Zhang, C. Research on Geology Vol. 1,10–21 (Inst. Geol. Academia Sinica, Cultural Relics Publishing House, 1982). 5. Li, C. Y., Wang, Q., Liu, X. Y. & Tang, Y. Q. Bull. Chin. Acad. geol. Sci. No. 10,3–11 (1984). 6. Wang, H. Z., Xu, C. Y. & Zhou, Z. G. Acta geol. sin. No. 3, 270–280 (1982). 7. Yang, S. N. & Yang, W. L. Regional Geotectonics of China (Geological Publishing House, Beijing, 1985). 8. Wang, T., Teng, H., Li, C. & Ye, S. Acta geophys. sin. 9, 125–138 (1960). 9. McElhinny, M. W., Embleton, B. J. J., Ma, X. H. & Zhang, Z. K. Nature 293,212–216 (1981). 10. Chan, L. S., Wang, C. Y. & Wu, X. Y. Geophys. Res. Lett. 11, 1157–1160 (1984). 11. Lin, J. L., Fuller, M. & Zhang, W. Y. Nature 313, 444–449 (1985). 12. Zhao, X. thesis, Inst. Geol. Academia Sinica, Beijing (1981). 13. Zhang, Z. K. Bull. Chin. Acad. geol. Sci. No. 4, 45–54 (1984). 14. Liu, C., Zhu, R. & Jing, Z. Monograph of China Panxi Rift Vol. 2 (Geological Publishing House, Beijing) (in the press). 15. Irving, E. & Parry, L. G. Geophys J. R. astr. Soc. 9, 153–167 (1963). 16. Huang, K., Opdyke, N. D., Kent, D. V., Xu, G. & Tang, L. Kexue Tongbao 31, 1195–1201 (1986). 17. Zhou, Y. X. et al. Dizhi Pinglun 32, 465–469 (1986). 18. Yuan, H. et al. Monograph of China Panxi Rift Vol. 1 (Geological Publishing House, Beijing, 1985). 19. Harland, W. B. et al. A Geological Time Scale (Cambridge University Press, 1982). 20. Khramov, A. N. & Rodionov, V. P. in Global Reconstruction and the Geomagnetic Field during the Palaeozoic (eds McElhinny, M. W. et al.) (Adv. Earth planet. Sci. 10) 99–115 (1981). 21. Chinese Geological Academy Geological Atlas of People's Republic of China (1973). 22. Kirschvink, J. Geophys, J. R. astr. Soc. 62, 699–718 (1980). 23. Lin, J. L. thesis, Univ. California Santa Barbara (1984). 24. Yang, Z. Y. et al. An Outline of the Stratigraphy of China (ed. Chinese Academy of Geological Sciences) (Geological Publishing House, Beijing. 1982). 25. Courtillot, V. & Besse, J. Nature 320, 86–87 (1986). 26. Kent, D. V., Zeng, X. S., Zhang, W. Y. & Opdyke, N. D. Tectonophysics (in the press). 27. Opdyke, N. D., Huang, K., Xu, G., Zhang, W. Y. & Kent, D. V. /. geophys. Res. 91(B9), 9553–9568 (1986). 28. Kent, D. V., Xu, G., Huang, K., Zhang, W. Y. & Opdyke, N. D. Earth planet. Sci. Lett. 79, 179–184 (1986). 29. Khramov, A. N. Paleomagnetism, 303 (Leningrad, 1982) (in Russian). 30. Irving, E. & Irving, G. A. Geophys. Surv. 5, 141–188 (1982).