... to lower Tertiary rocksfrom Vietnam, Indochina and South China, and their implications for Cenozoic tectonism in Vietnam and adjacent areas. J. Geodyn. ... 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:...