| 210Po法在粤北青障山地区花岗岩型铀矿找矿中的应用研究 |
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| 引用本文： | 姜涛,李伟林.210Po法在粤北青障山地区花岗岩型铀矿找矿中的应用研究[J].铀矿地质,2021(1):120-130. |
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| 作者姓名： | 姜涛 李伟林 |
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| 作者单位： | 核工业二九〇研究所 |
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| 基金项目： | 中国地质调查局项目“南岭中段青障山矿集区找矿预测”(编号:DD2016005209)资助。 |
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| 摘 要： | 为扩大粤北花岗岩型铀矿找矿成果,以青嶂山矿集区1:5万210Po测量数据为依据,研究了210Po法在粤北花岗岩型铀矿找矿中的异常特征及应用效果。结合研究区地质特征,应用趋势面分析等数理统计方法对数据进行处理,结果表明:趋势面分析消除了不同铀含量的地质背景对提取210Po异常的影响;210Po法与地面伽马能谱、氡气测量、 AMT组合应用对寻找花岗岩区深部隐伏矿体具有良好的效果,多种测量方法均出现峰值的部位,为含矿构造带或铀矿体产出部位;经钻探工程验证,在210Po法及相关方法异常区揭露到铀矿工业矿段,210Po法在粤北花岗岩型铀矿勘查中具有较大的指导意义。
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| 关 键 词： | 210Po法 花岗岩型铀矿 趋势面分析 远景预测 |
Application of 210Po Method in the Exploration of Granite Type Uranium Deposits in Qingzhangshan,North Guangdong |
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| JIANG Tao,LI Weilin.Application of 210Po Method in the Exploration of Granite Type Uranium Deposits in Qingzhangshan,North Guangdong[J].Uranium Geology,2021(1):120-130. |
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| Authors: | JIANG Tao LI Weilin |
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| Institution: | (Research Institute No.290,CNNC,Shaoguan,Guangdong 512026,China) |
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| Abstract: | In this paper,the data of 1:50000210po survey in the Qingzhangshan mineralization cluster area was used to study the characteristics of 210Po anomaly and its application effect on the exploration of granite type uranium deposit in North Guangdong.By referring to the geological characteristics,the measured 210po data were processed with the method of trend surface analysis and other statistics.The results showed that trend surface analysis can eliminate the interference of geological background on the extraction of 210Po anomaly with different uranium content.The integrated application of 210Po with ground gamma spectrometry,radon survey and AMT can reach good effect in searching blind ore body in the deep of granite areas,The position simultaneously respondent to the anomaly peak of various methods is the location of ore-bearing fracture or the uranium ore body.Economic benefit ore bodies were exposed by the later drilling in the abnormal area of 210Po survey,which suggest that the 210Po method is of great guiding significance in the exploration of granite-type uranium deposits in North Guangdong. |
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| Keywords: | 210Po method trend surface analysis prospect prediction |
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