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861.
Palaeogeography as A Guide to Mineral Exploration 总被引:1,自引:0,他引:1
正 The study of palaeogeography forms one of the main objectives in thegeological interpretation of the earth's history.It is made on the basis ofmineralogy,stratigraphy,structure,palaeontology,physiography,petrography, 相似文献
862.
C.W.Wen 《地理学报(英文版)》1948,(1)
Ⅰ.Losatlon and Historical Development Chukiang or “the winding river” was a castle-like town which was originaIly surrounded by a wall.(Fig. 2)it is situated on the upper part of the Peikiang at the iunction of the Teheng and Wu Riwrs, and is on the crossroad both by land and water (Fig. 1). The city was developed as 相似文献
863.
The Kunming Lake, with an area of 324 sq. kin. during its flood water time, is the largest lake in Eastern Yunnan. More than twenty streams from the surrounding mountains empty into the lake which is drained by the TangLang River to the upper Yangtze. Around the Kunming Lake is an extensive 相似文献
864.
866.
正 With 2 Plates Ⅰ. INTRODUCTION Both Middle and Upper Carboniferous rocks are well developed in Western Kansu and were investigated by Loczy [19], Obrutchev [21],Yuan [31, 32], and Sun [25]. Though the faunas from these rocks have been studied in some detail by Loczy, Chao, Lee and others, their stratigraphic succession and the correlation of fossil horizons found in them in different localities yet remain to be established. In 1941-942, T. K. Huang and party, of which the writer was a member, made reconnaissance 相似文献
867.
正 The Kuenlunknan Granodiorite, whick occurs slightly to the west of the apex of the Kuangi are, is exposed at the southern end of the Tamingshan anticline. The mass is injeated into the Lower Devonian and Pre-Devonian rocks. This pluton is 相似文献
868.
正 I. INTRODUCTION In November of 1937, the writer together with Messrs. C. Wang, T. C. Chow and S. H. Lee were sent by the Geological Survey of China to investigate the tin placer deposits in Fuchuan, Hohsien, Chungshan' in northeastern Kuangsi and Kianghua in southern Hunan, herein known collectively as the Fuhochungkiang 相似文献
869.
正 INTRODUCTION The term Tsinling is used here in its broadest sense, which is even broader than that defined by Chao and Huang. It includes the Tapashan and is a general region in which are situated the catchment areas and the headwaters of the Wei, the Han 相似文献
870.
正 In studying the Carboniferous stratigraphy, one is always struck by the fact that those Namurian and Westphalian plants, abundant in other Arcto- 相似文献