| 粤东麻坑非硫化物型锌矿锌的赋存状态及成因讨论 |
| |
| 引用本文： | 王松.粤东麻坑非硫化物型锌矿锌的赋存状态及成因讨论[J].地质学报,2008,82(11):1547-1554. |
| |
| 作者姓名： | 王松 |
| |
| 作者单位： | 1. 中国地质科学院矿产资源研究所,国土资源部成矿作用与资源评价重点实验室,北京,100037
2. 广东省地质调查院,广州,510080 |
| |
| 基金项目： | 中国地质调查局地质调查项目(1212010561603—2) |
| |
| 摘 要： | 麻坑锌矿位于粤东晚古生代梅州拗陷东北部、近南北向蕉岭向斜的西翼，含矿岩石为强风化浅绿色粘土岩、黑色锰土及黑土角砾岩，未见原生金属硫化物，因此，有关锌的赋存状态及矿床成因一直不明。本文通过系统的岩矿石样品光薄片、砂光片显微镜下鉴定、X射线粉晶衍射物相分析和电子探针成分分析，查明了锌矿物主要以异极矿形式存在，仅含极少量菱锌矿；本矿床氧化作用较为彻底，矿床成因属浅成非硫化物型锌矿的直接交代亚类。上述锌的赋存状态及矿床成因探讨对类似矿床的认识与勘查具重要意义。
|
| 关 键 词： | 非硫化物型锌矿 异极矿 直接交代成因 麻坑锌矿 粤东地区 |
| 收稿时间： | 8/3/2008 12:00:00 AM |
| 修稿时间： | 8/3/2008 12:00:00 AM |
Zinc Occurrence and Genesis of Makeng Nonsulfide Zinc Deposits in the Eastern Guangdong Province |
| |
| wangsong.Zinc Occurrence and Genesis of Makeng Nonsulfide Zinc Deposits in the Eastern Guangdong Province[J].Acta Geologica Sinica,2008,82(11):1547-1554. |
| |
| Authors: | wangsong |
| |
| Institution: | Institute of Mineral Resources,CAGS |
| |
| Abstract: | Makeng zinc deposit located in eastern Guangdong Province. According to study of thin and polished sections, mineral X-ray powder diffraction and electronic microprobe, the zinc element mainly occurrence in hemimorphite, associated minerals include sericite, montmorillonite, and minor kaolinite, limonite, quartz, they are weathering-leached minerals, meanwhile smithsonite is rare. This means that ore body has experienced completely wreathing, and the deposit is supergene nonsulfide zinc deposits. Comparison zinc ore body, skarn body with the fold tectonic trace, it can be found the ore and skarn body closely related with the subsidiary anticline/syncline, especially anticiline. This indicates that NNW-treading anticline structure is the mainly ore-controlling structures, the ore controlling magmatic body intrude along with the fault of flanks of anticlines. Because of the folding, in flanks and core of anticlines of limestone of Qixia Formation were detachment, it favor of formed skarn body and zinc deposit. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质学报》浏览原始摘要信息 |
| 点击此处可从《地质学报》下载免费的PDF全文 |
|
