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Ⅰ. INTRODUCTION. The microscopical study of coal either by thin section or by polished section has formed now a special branch of geological science which is called in Germany "Kohlenpetrog(?)aphie." This name is not at all a satisfactory one as, so far as I know, it has been followed neither in America nor in European 相似文献
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WITH 4 PLATES AND 4 FIGURES Tang Shan, or as it is sometimes called Nan Tan Shah, is situated abou 60 li W. of Nanking. On the N. E. slope of the mountain is located the town Tan Shui Chen, in which a great number of hot springs are found. An automobile road connecting Tan Shan with Nanking has been recently built and it takes 相似文献
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WITH 4 PLATES AND 2 FIGURES Ⅰ. INTRODUCTION. Chung Shah or as more popularly known, Tzu Chin Shan (紫金山) is situated to the east of Nanking about 5-15 li outside of the city gate, Chao Yang Men (朝陽门). The range has an extension from east to west of about seven 相似文献
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INTRODUCTION Iron deposits are widely distributed in S. W. Hupeh, especially in the districts of I Tu (宜都) and Changyang (长陽) where native mining industry has been carried on since very ancient time. Production from such mines 相似文献
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Ⅰ. INTRODUCTION. The Peipiao coal field is situated about 90 li North of the Chaoyang city, eastern Jehol and is connected with Chin Hsien, a station on the Peking-Mukden railway by a branch line of about 170 li. The region is characterized by a moderately dissected mountain range which runs roughly in a N. E. —S. W. direction. 相似文献
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