... ofVietnam (Taylor and Hayes, 1980, 1983). High quality paleomag-netic data are sorely needed from Cretaceous rocks from the farnortheast part of Vietnam, ... intrusive rocks from northwesternregion of Vietnam. Journal of Geology, Series A 256 (1–2), 1–8 (in Vietnamese).Chi, C.T., Cuong, N.Q., Yem, N.T., 1999. ... Vietnamese).Chi, C.T., Yem, N.T., Bao, N.X., 1998. Paleomagnetic study of Late Jurassic-Cretaceousextrusive and intrusive igneous rocks from South Vietnam:...