【引用本文】 万建军, 潘春蓉, 严杰, 等. 应用电子探针-扫描电镜研究陕西华阳川铀稀有多金属矿床稀土矿物特征[J]. 岩矿测试, 2021, 40(1): 145-155. doi: 10.15898/j.cnki.11-2131/td.202005060009
WAN Jian-jun , PAN Chun-rong , YAN Jie , et al. EMPA-SEM Study on the Rare Earth Minerals from the Huayangchuan Uranium Rare Polymetallic Deposit, Shaanxi Province[J]. Rock and Mineral Analysis, 2021, 40(1): 145-155. doi: 10.15898/j.cnki.11-2131/td.202005060009

应用电子探针-扫描电镜研究陕西华阳川铀稀有多金属矿床稀土矿物特征

1. 东华理工大学核资源与环境国家重点实验室, 江西 南昌 330013;

2. 中陕核工业集团二二四大队有限公司, 陕西 西安 710024;

3. 福建省地质调查研究院, 福建 福州 350013

收稿日期: 2020-04-06  修回日期: 2020-08-01 

基金项目: 国家自然科学基金项目(41772066,41902075,42002091);核资源与环境国家重点实验室自主基金项目(Z1909,2020Z11)

作者简介: 万建军,博士研究生,主要从事铀矿地质研究工作。E-mail:jianjunwan@ecut.edu.cn。。

EMPA-SEM Study on the Rare Earth Minerals from the Huayangchuan Uranium Rare Polymetallic Deposit, Shaanxi Province

1. State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China;

2. Geological Party No. 224, China-Shaanxi Nuclear Industry Group, Xi'an 710100, China;

3. Fujian Institute of Geological Survey, Fuzhou 350013, China

Received Date: 2020-04-06
Revised Date: 2020-08-01

摘要:陕西华阳川铀稀有多金属矿床伴生大量的稀土资源,其矿石类型独特,组分复杂,系统的稀土矿物学工作将揭示矿石主要稀土矿物类型、稀土元素赋存状态,进而对矿床开发中稀土元素综合利用及选冶技术提供重要参考。本文在岩相学基础上,利用扫描电镜、电子探针对陕西华阳川铀稀有多金属矿床矿石中的稀土独立矿物与含稀土矿物进行系统研究,在矿石中发现了褐帘石(La2O3 6.49%~7.61%,Ce2O3 11.50%~14.00%)、磷铈镧矿(La2O3 16.30%~21.21%,Ce2O3 32.06%~39.18%)、磷钇矿(La2O3 2.29%~3.58%,Ce2O3 1.89%~2.37%,Y2O3 39.77%~42.80%)、氟碳铈镧矿(La2O3 12.86%~14.20%,Ce2O3 36.67%~39.90%)、褐钇铌矿(La2O3 1.19%~2.11%,Ce2O3 1.29%~2.30%,Y2O3 22.67%~25.88%)等5种稀土独立矿物;同时发现磷灰石、贝塔石、榍石等矿物中稀土元素含量较高。研究表明,该矿床稀土元素以独立矿物(褐帘石、磷铈镧矿、磷钇矿、氟碳铈镧矿、褐钇铌矿)与类质同像(磷灰石、贝塔石、榍石等矿物)两种形式存在,稀土资源以La、Ce轻稀土元素为主,并富含重稀土元素Y。

关键词: 铀稀有多金属矿床, 稀土矿物, 赋存状态, 陕西华阳川

EMPA-SEM Study on the Rare Earth Minerals from the Huayangchuan Uranium Rare Polymetallic Deposit, Shaanxi Province

KEY WORDS: uranium rare polymetallic deposit, rare-earth minerals, occurrence state, Huayangchuan

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应用电子探针-扫描电镜研究陕西华阳川铀稀有多金属矿床稀土矿物特征

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