Since the beginning of their survey of the Gobi (1922), the geologists of the American Central Asiatic Expedition were struck by the almost universal presence, in the old floor of the Mongolian Plateau, of a very thick slates and graywackes formation, admitting a few marine limestone intercalations, and more or less strongly metamorphosed (s. Berkey and Morris. 1927, passim).
Since the beginning of their survey of the Gobi (1922), the geologists of the American Central Asiatic Expedition were struck by the almost universal presence, in the old floor of the Mongolian Plateau, of a very thick slates and graywackes formation, admitting a few marine limestone intercalations, and more or less strongly metamorphosed (s. Berkey and Morris. 1927, passim).
TEILHARD DE CHARDIN.1932. NEW OBSERVATIONS ON THE KHANGAI SERIES OF MONGOLIA AND SOME OTHER ALLIED FORMATIONS[J].地质学报,(4).
TEILHARD DE CHARDIN.1932.[J]. Acta Geologica Sinica,(4).
