H. C. TAN Geological Survey of China
Among the Mesozoic formations the most developed and widespread in China, especially in northern China, is a great series which contains various rocks of volcanic origin, with or without sedimentary beds and igneous intru-
H. C. T''AN Geological Survey of China.1926. THE TUFF-CONGLOMERATE FORMATION IN CHINA[J]. Acta Geologica Sinica(),5(2):
