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31.
1. Previous works on microscopy of anthracite. The existing method of coal petrography seems to be well adaptableonly to bituminous or lignitic coals; in the case of anthracite,because of itsextreme opacity to light and resistency to most chemical solvents,no satisfactory 相似文献
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Through the studies of Richthofen in Szechuan and Kiangsu, Deprat and Munsuy in Eastern Yunnan, and Brown & Read in Western Yunnan, the Silurian rock of South China has been known to be of wide occurrence. The classic region, however, is found in the district of Kiao Tchang Pa 相似文献
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THE MESOZOIC STRATIGRAPHY OF THE YANGTZE GORGES. 总被引:2,自引:0,他引:2
The geology of the Yangtze Gorges has been studied by many eminent geologists, among whom Pumpelly, Abendanon, Willis, Blackwelder and Noda are specially to be mentioned. These studies made known the 相似文献
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Ⅰ. INTRODUCTION Records of meteorite fall were constantly kept among Chinese books on history or geography, but very few specimens have been actually collected and preserved for scientific study. So far as the writer is aware, only two occurrences have been until now definitely reported and the specimens microscopic- 相似文献
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一引言地殼内所含有用礦質,常爲量甚微,必待經過聚礦作用,達到相當之成分,始能供人開採。此聚礦作用,據現所知,有屬火成者,有屬水成者,亦有屬變質者,更有合數種作用通力合作,始能造成一豐富之礦床者。由此言之,礦床之成,誠非易易,而 相似文献
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There are two specimens of aseptate (tabulate) corals collected byMessrs.T.F.Hou and C.C.Sun in 1934,from the siliceous limestone bedabout 150 m.thick,at the upper part of the metamorphic rock series,or theso-called 'Nanshan Sandstein' of Ludwig von Lóczy~1.or the 'Nanshan Series'of C.Y.Hsieh~2,which consist mainly of green schist,slate and quartzite,witha total thickness of about 2000 m.The localities of these two specimens are 相似文献
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自從發明了用顯微鏡研究煤的方法之後,我們對於煤的內部組織,獲得了清晰可靠的認識,這種研究的發揚光大,就形成了目前大家所知道的在地層學中新興的一门科學——煤岩學。煤岩學家們多年研究的結果,除鑑定了在煤中保存的許多種植物組織的遺跡 相似文献
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一.過去中國銅礦業的概况中國自古以銅為主幣,並以銅製造各種兵器及器皿,因此,在各金屬中用途之廣,除鐵外以銅為最大,故對於銅礦,一向很為注意。據翁文灏氏的考據謂漢唐及漢唐以前,以山西、河南間黃河兩岸為最盛,其範圍大致與中條山山脈相符合。章鴻釗所著“古 相似文献