赣南稀土精矿粉配制的稀土溶液反射波谱特征研究

发布时间：2018-06-26 20:33

本文选题：离子吸附型稀土矿 + 稀土溶液　；参考：《地球学报》2017年04期

【摘要】：赣南离子吸附型稀土矿是我国重要的稀土资源,本文运用美国ASD FieldSpec-3便携式地物波谱仪,对赣南寻乌稀土矿区稀土精矿粉配置的25个稀土溶液样品进行波谱测试,获取了不同稀土含量的波谱特征,结果表明溶解在水体中的稀土元素在可见光-近红外574 nm、790 nm、736 nm、520 nm、861 nm、443 nm等波段具有多个明显的稀土特征吸收谷及若干次级的稀土特征吸收谷;通过与15种稀土单元素波谱特征对比分析,可见这些吸收特征主要由一种或几种稀土单元素引起;随着稀土浓度的降低,这些吸收特征逐渐减弱甚至消失。这一研究进一步加深了对我国赣南稀土溶液波谱特征的认识,同时为赣南稀土元素的高光谱遥感研究奠定了理论基础。
[Abstract]:Gannan ion adsorbed rare earth ore is an important rare earth resource in China. In this paper, 25 rare earth solution samples from Xunwu rare earth ore area in southern Jiangxi province were measured by means of ASD Field Spec-3 portable ground object spectrometer. The spectral characteristics of rare earth elements dissolved in water are obtained. The results show that the rare earth elements dissolved in the water have several distinct rare-earth characteristic absorption valleys and several secondary rare-earth characteristic absorption valleys in the visible and near infrared wavelengths of 574 nm ~ 790 nm ~ 736 nm ~ (-1) ~ 520nm ~ (-1) ~ 861 nm ~ (-1) ~ 443 nm. By comparing with 15 rare earth elements, we can see that these absorption characteristics are mainly caused by one or several rare earth elements, and with the decrease of rare earth concentration, these absorption characteristics gradually weaken or even disappear. This study further deepens the understanding of the spectral characteristics of rare earth solutions in South Jiangxi, and lays a theoretical foundation for the study of rare earth elements in South Jiangxi by hyperspectral remote sensing.
【作者单位】：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;
【基金】：国家自然科学基金“基于反射波谱吸收深度的溶液中稀土浓度定量评估研究”(编号:41402292) 中国地质调查局地质调查子项目“南方稀土矿产开发环境问题遥感调查”(编号:12120115059501)联合资助~~
【分类号】：P618.7;P627

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