| 粤北诸广矿区碱交代岩岩石化学和矿物化学特征及其与铀成矿关系 |
| |
| 引用本文： | 刘成东.粤北诸广矿区碱交代岩岩石化学和矿物化学特征及其与铀成矿关系[J].地质与勘探,2010,46(1):33-40. |
| |
| 作者姓名： | 刘成东 |
| |
| 作者单位： | 1. 东华理工大学核资源与环境教育部重点实验室,江西,南昌,330013
2. 核工业辽宁地质局242大队,辽宁,兴城,125100 |
| |
| 基金项目： | 2009江西省教育厅科学技术研究项目“南昌市环境地球化学特征研究”资助(项目编号:GJJ08512) |
| |
| 摘 要： | 诸广矿区与铀矿化关系密切的碱交代作用广泛发育,碱交代岩与围岩(正常花岗岩)对比,Na2O、K2O明显增高,Al2O3、Fe2O3也增高;SiO2明显降低,FeO、MgO、CaO也降低,表明K2O和Na2O被带入。矿物化学成分分析得出诸广碱交代岩的长石主要为钠长石与钾长石;绿泥石主要属铁镁绿泥石和蠕绿泥石;黄铁矿有的含铀量较高,据Fe/S值属硫亏损型,据S/Se值属岩浆热液矿床范畴;云母属白云母及少量铁白云母;铀矿物和含铀矿物的UO2含量以沥青铀矿较高,钍石较低,铀矿石的蚀变矿物和造岩矿物有的也含微量铀。碱交代作用既释放矿质又为矿质沉淀创造空间,碱交代岩既提供铀源又是一种有利的成矿围岩。
|
| 关 键 词： | 碱交代岩 岩石化学 矿物化学 铀成矿作用 诸广矿区 |
| 收稿时间： | 2009/9/10 0:00:00 |
| 修稿时间： | 2009/11/12 0:00:00 |
The Rock and Mineral Chemical Characteristics of Alkaline Rocks in Zhuguang Mining Area of
Northern Guangdong and its Relationship with Uranium Mineralization |
| |
| LIU Cheng-dong.The Rock and Mineral Chemical Characteristics of Alkaline Rocks in Zhuguang Mining Area of
Northern Guangdong and its Relationship with Uranium Mineralization[J].Geology and Prospecting,2010,46(1):33-40. |
| |
| Authors: | LIU Cheng-dong |
| |
| Institution: | Key Laboratory of Nuclear Resources and Environment (ECIT),Ministry of Education,Nanchang,JX |
| |
| Abstract: | The alkali metasomatism which is close to uranium mineralization is pervasive developed in Zhuguang mining area.To contrast with the wall rock(normal granite),the contents of Na2O,K2O,Al2O3 and Fe2O3 of alkali metasomatic rocks are higher,and the SiO2,FeO,MgO and CaO are decreased.The feldspar of Zhuguang alkali metasomatic rocks are mainly albite feldspar and potassium feldspar by the analysis of mineral chemical composition.The chlorite is mainly brunsvigite and prochlorite.Some pyrite contains high level... |
| |
| Keywords: | alkali metasomatic rock petrochemistry mineral chemistry uranium mineralization Zhuguang mining area |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地质与勘探》浏览原始摘要信息 |
| 点击此处可从《地质与勘探》下载免费的PDF全文 |
|
