山西五台山細脉浸染鉬矿床的研究

来源 :南京大学学报(自然科学版) | 被引量 : 0次 | 上传用户:lixianhua021389
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
一、引言細脈浸染鉬矿床是鉬矿床的最重要的工业类型。在第一个五年計划內,我国对鉬矿床的地貭普查和勘探工作已經取得巨大成就,先后在东北、五台山、秦岭等地找到了細脈浸染型的鉬矿床,經过勘探,証实我国是一个极富有鉬矿的国家,並超过美国而跃居为世界第一位。但关於这方面的研究和报导目前还是很少,因此总結五台山細脈浸染鉬矿床的性貭、成因及其特征是很有必要的。在1955年暑期,我系二十六位毕业同学和著 I. Introduction Fine vein dip molybdenum deposit is the most important industrial type of molybdenum deposit. In the first five-year plan, great achievements have been made in the investigation and exploration of molybdenum deposits in our country. After that, vein-disseminated molybdenum deposits have been found in the northeast, Wutai Mountain and Qinling Mountains. After exploration, My country is a country rich in molybdenum and surpassed the United States and leapt to the first place in the world. However, research and reports on this area are still rare at present. Therefore, it is necessary to summarize the genesis, characteristics and characteristics of the vein infiltrated molybdenum deposit in Wutai Mountain. In the summer of 1955, I graduated with 26 graduating students
其他文献
日前,西部科技项目“超长钻孔灌注桩桩基承载性能的研究”成果通过验收。该项目成功解决了超长钻孔灌注桩的算法、参数取值、定义及界定等问题。专家建议尽快形成交通行业超
In general, geologically speaking, it has been noted that if the formation of coal took place during the Permo-Carboniferous period, its volatile matter will a
我厂三吨模锻锤年久失修,气缸套磨损达10毫米。由于缺乏大型设备,无法修复,致使锻锤长期带病工作,严重影响了锻件的产量和质量。后来制造了简易立式镗缸装置,经过实践证明,
金属板在冲模上成形一般需要压料。经常使用弹簧压料。一般说来,弹簧压料适用于年产几千件零件的冲模。如果在年产几十万件零件的冲模上采用弹簧压料,就会由于弹簧损坏而频
英语形容词的分析比较简说王琳娜人类在利用语言进行思想交流时,常常需要对两个或两个以上的事物,或同一事物在不同的时间、地点表现出的性质加以比较。比较是人类认识客观事物
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
INTRODUCTION Since many years the occurrence of Early Pleistocene fossiliferousred loam (wrongly interpreted generally as “loess”) was known,north ofthe Tais
据报导:Valenite公司现在供应一种热压不重磨式陶瓷刀片,该刀片特别适于轧钢机轧辊的修复加工。新型V—32陶瓷刀片是含有A1_2O_3和碳化钛的耐热混合物,在 It is reported t
哈萨克斯坦工业与贸易部部长加雷姆·奥拉兹巴科夫在议会会议上说,哈必须再建5个经济特区,它们是:位于中哈边界的“多斯迪克(友谊)”和“霍尔果斯-东大门”经济特区,位于俄哈
Mr.T.F.Hou,geologist of the National Geological Survey of Chinabrought back in 1931 from Liaoning province,a specimen of subbituminous coalin which are include