LUDLOVIAN GRAPTOLITE FAUNAS OF THE YANGTZE GORGES DISTRICT AND THEIR STRATIGRAPHICAL SIGNIFICANCE
Article
Figures
Metrics
Preview PDF
Reference
Related
Cited by
Materials
Abstract:
Ⅰ.INTRODUCTION The Silurian stratigraphy of the Yangtze Gorges district has been reportedby various authors since this century.Early in 1924 J.S.Lee and Y.T.Chao subdivided the Silurian of Sintandistrict into two parts—the lower Lungma shale and the upper Sintan forma-tion,thus laying down the fundation of the silurian stratigraphy of China.Inthe following year C.Y.Hsieh and Y.T.Chao went to Lojoping area of I-Chang district and again subdivided the Silurian of that area into three sub-
