【引用本文】 孙伟涛, 郑有业, 牛学瑶, 等. 手持式X射线荧光光谱分析仪在斑岩铜矿快速勘查中的应用[J]. 岩矿测试, 2021, 40(2): 206-216. doi: 10.15898/j.cnki.11-2131/td.201905020054
SUN Wei-tao , ZHENG You-ye , NIU Xue-yao , et al. Practicality of Hand-held XRF Analyzer in Rapid Exploration of Porphyry Copper Deposit[J]. Rock and Mineral Analysis, 2021, 40(2): 206-216. doi: 10.15898/j.cnki.11-2131/td.201905020054

手持式X射线荧光光谱分析仪在斑岩铜矿快速勘查中的应用

1. 中国人民武装警察部队黄金第二总队(中国地质调查局廊坊自然资源综合调查中心), 河北 廊坊 065000;

2. 中国地质大学(北京)地球科学与资源学院, 北京 100083

收稿日期: 2019-05-02  修回日期: 2020-01-15 

基金项目: 国家重点研发计划项目“深地资源勘查开采——深部资源预测系统技术研究与示范”(2017YFC060150);中国地质调查局地质调查项目“鄂尔多斯市煤炭矿集区生态修复支撑调查”(DD20208078)

作者简介: 孙伟涛,硕士研究生,矿物学、岩石学、矿床学专业。E-mail:1509274474@qq.com。

Practicality of Hand-held XRF Analyzer in Rapid Exploration of Porphyry Copper Deposit

1. No. 2 Gold Geological General Party of Chinese Armed Police Force (Langfang Natural Resources Comprehensive Survey Center, China Geological Survey), Langfang 065000, China;

2. School of the Geosciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China

Received Date: 2019-05-02
Revised Date: 2020-01-15

摘要:现场X射线荧光测量因样品的不平度效应、不均匀效应和湿度效应等面临的特有技术难题,使得手持式XRF现场原位分析结果与实验室分析结果存在一定偏差。本文对Niton XL3t GOLDD+型手持式XRF分析仪的测试时间、样品含量、测试距离、样品干湿度和样品粒度等测试条件对测试结果的影响进行了定量研究。结果表明:在最佳测试时间90s条件下,得到Cu、Mo、Pb、Zn元素测定限分别为57μg/g、14μg/g、24μg/g、38μg/g并给出测定限计算公式;现场分析测试距离应小于5mm并保持样品表面干燥,块状样品测试方法最简单但测试结果变化最大,样品粉碎至粒径80目以上效果最佳但制样过程较复杂。对西藏驱龙斑岩铜矿岩心扫描的实际应用表明,手持式XRF分析仪适合于现场原位分析,可满足野外斑岩铜矿圈定矿体等快速勘查评价要求,提高了工作效率并降低勘查成本。

关键词: 手持式X射线荧光光谱分析仪, 原位分析, 样品粒度, 测试时间, 元素测定限, 斑岩铜矿勘查

Practicality of Hand-held XRF Analyzer in Rapid Exploration of Porphyry Copper Deposit

KEY WORDS: hand-held XRF analyzer, in situ analysis, sample size, test time, determination limit of elements, porphyry copper prospecting

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手持式X射线荧光光谱分析仪在斑岩铜矿快速勘查中的应用

孙伟涛, 郑有业, 牛学瑶, 秦越强, 王伟, 乔衍溢, 邸宝刚, 侯红星, 张蜀冀, 丛鹏飞