浅钻地球化学测量在甘肃北山南金山金矿外围浅覆盖区的应用
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Application of shallow drilling geochemical survey to shallow overburden area at the peripheral of Nanjinshan gold mine in Beishan, Gansu Province
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图4. 元素聚类分析谱系 |
Fig.4. Element cluster analysis pedigree chart |
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