| 试论与布什维尔德杂岩体有关的铂族元素-铬铁矿矿床成矿系列及其对中国西南部的意义 |
| |
| 引用本文： | 王登红,应汉龙,骆耀南,陈毓川,朱明玉.试论与布什维尔德杂岩体有关的铂族元素-铬铁矿矿床成矿系列及其对中国西南部的意义[J].地质与资源,2002,11(4):243-249. |
| |
| 作者姓名： | 王登红 应汉龙 骆耀南 陈毓川 朱明玉 |
| |
| 作者单位： | 1. 中国地质科学院 矿产资源研究所, 北京 100037;2. 中国科学院 地质与地球物理研究所, 北京 100011;3. 四川地质矿产勘查与开发局, 四川 成都 610011;4. 中国地质科学院, 北京 100037 |
| |
| 基金项目： | 国家重点基础发展规划973项目G1999043203课题，国土资源部1999新上项目(992024)资助. |
| |
| 摘 要： | 布什维尔德杂岩体中铂族元素成矿作用具有多样性的特点，既有主岩体岩浆结晶分异形成的UG2和Merensky层，有晚期小岩体结晶分异产生的块状铜镍硫化物矿石中伴生的铂族元素矿床（如Nkomati），也有岩体侵入过程中产于接触带的热液成因硫化物-铂族元素矿床（如Potgietersrust），以及岩筒型矿床（如Mooihoek和Driekop）、剪切带热液型硫化物矿床（如TweefonteinHill）和石英脉型铂族元素矿床.这些矿床虽然产出部位不同（矿体可以分布在岩体内部也可以出现在接触带甚至远离岩体），矿石类型也不同（有的是铬铁矿型，有的是硫化物型，有的是硅酸盐型，甚至还有石英脉型），但铂族元素的富集都与布什维尔德基性超基性岩杂岩体密切有关，实际上构成一个完整的由布什维尔德地幔柱形成的矿床成矿系列。类似的矿床成矿系列在深受峨眉地幔柱影响的我国西南部地区也存在，这对于在我国寻找多种类型的铂族元素矿床无疑具有重要的启示意义.除了金宝山和杨柳坪等地的岩浆型铂矿外，近年来在杨柳坪、大岩子等地也先后发现了热液型铂族元素矿床.
|
| 关 键 词： | 布什维尔德杂岩体 地幔柱 铂族元素矿床 矿床成矿系列 中国西南部 |
| 文章编号： | 1671-1947(2002)04-0243-07 |
| 收稿时间： | 2002-07-22 |
| 修稿时间： | 2002年7月22日 |
THE PLATINUM GROUP ELEMENT-CHROMITE METALLOGENIC SERIES RELATED TO THE BUSHVELD COMPLEX IN SOUTH AFRICA:its inspiration to exploration for PGE in Southwest China |
| |
| WANG Deng hong,YING Han long,LUO Yao nan,CHEN Yu chuan,ZHU Ming yu.THE PLATINUM GROUP ELEMENT-CHROMITE METALLOGENIC SERIES RELATED TO THE BUSHVELD COMPLEX IN SOUTH AFRICA:its inspiration to exploration for PGE in Southwest China[J].Geology and Resources,2002,11(4):243-249. |
| |
| Authors: | WANG Deng hong YING Han long LUO Yao nan CHEN Yu chuan ZHU Ming yu |
| |
| Institution: | 1. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;2. Institue of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100011, China;3. Sichuan Bureau of Geology and Mineral Resource, Chengdu 610011, China;4. Chinese Academy of Geological Sciences, Beijing 100037, China |
| |
| Abstract: | Multi types of PGE mineralization have been proved to be associated with the Bushveld complex in South Africa, including the UG2 and Merensky reefs formed by crystallization and differentiation of the major magma body,the massive sulfide Cu Ni PGE deposits related to small intrusive bodies of later stage such as the Nkomati deposit,the hydrothermal sulfide PGE deposits formed in contact zone such as the Potgietersrust deposit,as well as pipe type PGE deposits such as the Mooihoek pipe and the Driekop pipe, shear zone type of hydrothermal PGE deposits such as the Tweefontein hill deposit, and quartz vein type PGE deposits such as the Naboomspruit deposit. Even these deposits show different modes of geological occurrences (within mafic ultramafic rocks, at contact zone, or even in shear zone or quartz vein away from the main intrusive complex) and different types of ores (chromite type, massive sulfide type, silicate type, or quartz vein type), the enrichment or mineralization process of PGE was genetically related to the Bushveld mafic ultramafic complex and resulted in a metallogenic series of PGE deposits, chromite deposits, massive sulfide Cu Ni PGE deposits, asbestos deposits, magnesite deposits and other kinds of deposits. This metallogenic series of PGE Cu Ni Cr deposits were originated from the Proterozoic Bushveld mantle plume. It provides a good lesson to the exploration of new types of PGE deposits in Southwest China, where exist similar metallogenic series of PGE Cu Ni deposits formed on the western margin of the Yangtze platform and genetically related to the Emei mantle plume of Paleozoic. Besides the magma type PGE deposits at Jinbaoshan and Yangliuping, hydrothermal deposits have also been found recently in Yangliuping, Dayanzi and other areas. |
| |
| Keywords: | Bushveld complex platinum group element deposit mantle plume metallogenic series Southwest China |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质与资源》浏览原始摘要信息 |
| 点击此处可从《地质与资源》下载免费的PDF全文 |
|
