| 杨彦超,杨海成,李云涛,李茂森.小兴安岭大厂地区地面伽马能谱异常特征及控制因素分析[J].矿产勘查,2022,13(12):1818-1824 |
| 小兴安岭大厂地区地面伽马能谱异常特征及控制因素分析 |
| The spectral anomaly characteristics and controlling factors of ground gamma in the Dachang area of Xiaoxing’anling Mountain |
| 投稿时间：2021-07-16 |
| DOI：10.20008/j.kckc.202212010 |
| 中文关键词: 地面伽马能谱异常 控制因素 铀成矿 大厂地区 小兴安岭 |
| 英文关键词: anomaly of ground gamma energy spectrum controlling factors uranium mineralization Dachang area Xiaoxing’anling Mountain |
| 基金项目:本文受黑龙江省嘉荫县嘉荫盆地铀矿资源调查评价项目(KCZX-SDKC-2015026)资助。 |
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| 中文摘要: |
| 小兴安岭大厂地区发育北东向叠加北西向航放铀高场,为探查其铀成矿潜力,本文通过对地面伽马能谱数据进行统计分析,以3、+3Sd、+2Sd、+Sd为标准对地表异常信息进行了分级、分类,详细阐述了铀异常特征,结合槽探、钻探揭露成果,综合分析了控制因素。研究表明,异常受花岗岩铀源区、北西向断裂构造、福民河组岩性岩相组合、潜水—层间氧化作用的复合控制,显示大厂地区铀成矿潜力较大。 |
| 英文摘要: |
| The Dachang area of Xiaoxing’anling Mountain exists a northwestern and northeastern high uranium field of airborn radioactivity. To probe the potential of uranium mineralization, on the basis of statistic analysis of the ground gamma date in the Bajiazi area, the terrestrial anomaly information is classified by the standard of 3, +3Sd, +2Sd and +Sd. Then the spectral anomaly characteristics of the uranium and thorium are expounded in detail and the key anomaly is verified. Based on the results of drilling and trench, the controlling factors of anomaly genesis are analyzed comprehensively. The study shows that the uranium anomaly is controlled by the uranium from granite areas, the northwest structure, the lithology and lithofacies of Fuminhe formation, phreatic-interlayer oxidation. |
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