Re-Os Dating of Molybdenite from the Yaogangxian Tungsten Deposit,South China,and Its Geological Sig

来源 :Acta Geologica Sinica(English Edition) | 被引量 : 0次 | 上传用户:jiaoyang_204
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
The Yaogangxian tungsten deposit is located in the central part of the Nanling polymetallic metallogenic province.The orebodies occur as veins.Wolframite and molybdenite are the dominant ore minerals.Two samples were selected for molybdenite Re-Os dating in order to elucidate the timing of mineralization.Re-Os datings of molybdenite from quartz-wofframite veins and disseminated in granite yield ages of 153±7 Ma and 163.2±4.2 Ma respectively.The results indicate that the Yaogangxian tungsten deposit is the product of large-scale metallogenesis in the middle Yanshanian period in South China,and that the evolution from late magmatic to postmagmatic hypothermal mineralization occurred at about 10 Ma.The rhenium content of molybdenite in the Yaogangxian tungsten deposit suggests that the ore materials originated from the crust. The Yaogangxian tungsten deposit is located in the central part of the Nanling polymetallic metallogenic province. The orebodies occur as veins. Wolframite and molybdenite are the dominant ore minerals. Two samples were selected for molybdenite Re-Os dating in order to elucidate the timing of mineralization .Re-Os datings of molybdenite from quartz-wofframite veins and disseminated in granite yield ages of 153 ± 7 Ma and 163.2 ± 4.2 Ma respectively. The results indicate that the Yaogangxian tungsten deposit is the product of large-scale metallogenesis in the middle Yanshanian period in South China, and that the evolution from late magmatic to postmagmatic hypothermal mineralization occurred at about 10 Ma. rhenium content of molybdenite in the Yaogangxian tungsten deposit suggests that the ore materials originated from the crust.
其他文献
自1962年Backr氏首次报告良性血尿后,迄今不断有报道。现将我院儿科病房1979~1984年间收治的26例报告如下。一般资料 26例中男21例,女5例。年龄2~8岁,其中2岁3例,3、4岁各7例,
想必是对历史上有争议的女性情有独钟;亦或是对扮演有争议的女性已经是轻车熟路,在继《武则天》、《火烧阿房宫》之后,刘晓庆前些日子又出演了电视连续剧《逃之恋》,希望诠
中税协发[2011]050号根据《注册税务师等级认定办法(试行)》(中税协发[2010]127号),以下注册税务师经过注册税务师等级认定有关程序,考核通过且公示期无异议。经中税协会长办
Copper nitride (Cu3N) films were prepared by reactive radio frequency magnetron sputtering at various nitrogen partial pressures, and the films were annealed at
苦菜[Ieris chinxensis(Thunb.)Nakai,又称为中华苦荬菜、山苦菜],是菊科苦荬菜属植物[1]。在我国多地区广泛分布,野生资源丰富。中华苦荬菜化学成分复杂,含有多种愈创木烷型
疟疾患者只要有流行地区接触史,有典型的症状,诊断是不困难的,但一些不典型症疾往往会造成误诊。现将所遇得的一例报告如下。张某,男,12岁,平度县人。患儿进行性消瘦,发热2
多器官功能衰竭(简称 MOF)是指除原发病外同时或先后出现两个以上生命器官或系统功能衰竭引起的临床综合征。我科于1984年元月~1987年12月收住重症急症1529例中发现 MOF180例
目前,世界上能够容纳10万名观众以上的足球场共有14个,它们是:西班牙巴塞罗那的诺瓦坎帕体育场,智利首都圣地亚哥的帕那比体育场,英国苏格兰格拉斯哥的汉普顿体育场,巴西里
病例摘要男婴,2月,患儿因反复面肌抽动一周,在院外针刺治疗后针眼渗血半天住院。第一胎,足月顺产,生后单纯母乳喂养,家族中无出血病史。入院查体:736.5℃,P140次/min,R40次/
董绪公简介: 绪公,属猪,法学硕士。曾经是运动员,军校教官,记者。先后毕业于三所大学,双学历。1985年从成渝两地数千考生中以优异成绩脱颖而出,成为刚组建的“四川省经济律师