| 滇东南白牛厂银多金属矿床成矿元素特征 |
| |
| 引用本文： | 祝朝辉,张乾,何玉良.滇东南白牛厂银多金属矿床成矿元素特征[J].矿物岩石地球化学通报,2005,24(4):327-332. |
| |
| 作者姓名： | 祝朝辉 张乾 何玉良 |
| |
| 作者单位： | 1. 中国科学院,地球化学研究所,矿床地球化学重点实验室,贵阳,550002;中国科学院,研究生院,北京,100039
2. 中国科学院,地球化学研究所,矿床地球化学重点实验室,贵阳,550002 |
| |
| 摘 要： | 成矿物质来源是研究矿床成因的关键问题之一,而地质体（地层和岩浆岩）成矿元素的含量高低是探讨成矿物质来源的基础.为了研究白牛厂超大型银多金属矿床主要成矿元素特征,本文系统测定了外围赋矿地层以及矿区花岗岩和花岗斑岩的成矿元素（Ag、Pb、Zn、Sn）含量,结果表明,Pb、Zn主要来源于矿区花岗岩,寒武系及下伏基底地层可能也提供了部分成矿物质,特别是Zn;由于矿区外围赋矿地层的Sn含量远低于Pb、Zn的含量,也远远低于地壳克拉克值,因此推测,Sn主要来源于花岗岩浆;Ag则主要来源于赋矿地层,花岗岩对其进行了后期的改造作用.
|
| 关 键 词： | 滇东南 白牛厂 银多金属矿床 成矿物质 |
| 文章编号： | 1007-2802（2005）04-0327-06 |
| 收稿时间： | 2005-07-26 |
| 修稿时间： | 2005-08-31 |
The Characteristics of Mineralizing Elements of the Bainiuchang Silver Polymetallic Ore Deposit in Southeastern Yunnan |
| |
| ZHU Chao-hui,ZHANG Qian,HE Yu-liang.The Characteristics of Mineralizing Elements of the Bainiuchang Silver Polymetallic Ore Deposit in Southeastern Yunnan[J].Bulletin of Mineralogy Petrology and Geochemistry,2005,24(4):327-332. |
| |
| Authors: | ZHU Chao-hui ZHANG Qian HE Yu-liang |
| |
| Institution: | ZHU Chao-hui~ |
| |
| Abstract: | Source of mineralizing materials is one of the key questions for genetic study of ore deposit. Content of mineralizing elements in geologic body (stratum and granite) is the base to discuss the source of mineralizing materials. In order to study the characteristics of mineralizing elements in Bainiuchang ore deposit, we systematically measured the aboundances of mineralizing elements (Ag, Pb, Zn and Sn) in the external stratum, internal granite, and granite-porphyry respectively in the Bainiuchang region. The results indicate that Pb, Zn derive mainly from the granite. Cambrian and substratum also provided some mineralizing materials,especially Zn. The content of Sn of the external stratum is far less than the content Pb, Zn of external stratum and crust Clarke value. Thus,it is implyed that Sn derive mainly from granite, and Ag derive mainly from stratum and been modified by late granitic magmatism. |
| |
| Keywords: | southeastern Yunnan Bainiuchang Ag polymetallic ore deposits mineralizing malerial |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
