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8. 南金山外围ZK9601钻孔中矿石(a)及显微镜下南金山金矿石(b)[ |
Fig.8. Photo of ore in ZK9601 borehole at the periphery of Nanjinshan (a) and photo of Nanjinshan gold ore under microscope (b)[ |
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