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Geochemical and Geophysical Exploration in Sinongduo Ag Polymetallic Deposit, Xizang
Yang Zongyao, Tang Juxing, Ren Dongxing, Deng An, Wang Ying, Wu Xin
PDF(4834 KB)
PDF(4834 KB)
Geochemical and Geophysical Exploration in Sinongduo Ag Polymetallic Deposit, Xizang
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In recent years, many medium-large Pb-Zn-Ag deposits have been found in the Linzizong volcanic rocks in the Gangdese Nyainqêntanglha metallogenic belt, showing great potential for exploration. However, the key to exploration is how to conduct exploration targeting in the widespread Linzizong volcanic rocks. In this contribution, we conduct work of geochemical survey and induced polarization intermediate gradient in the Sinongduo Ag polymetallic deposit in the Dianzhong volcanic rocks. The results show that the Pb-Zn-Ag mineralization in the Linzizong volcanic rocks has Au, Mo, Pb, Zn and Ag anomalies, and the Au-Ag mineralization has strong Au, Ag, Mo, As and Sb anomalies, and the variation coefficient of the main mineralizing elements is more than 3. The target of the potential epithermal Pb-Zn-Ag mineralization is given based on the >2.5% polarizability and the <800 Ω∙m resistivity, which has achieved good exploration results. Our findings demonstrate that the induced polarization (IP) intermediate gradient is effective in exploration for epithermal Pb-Zn-Ag deposits in the Linzizong volcanic rocks, and thus can provide an important guide for the exploration in the Linzizong volcanic rocks in the Gangdese Nyainqêntanglha metallogenic belt.
epithermal deposit / rock geochemical survey / induced polarization intermediate gradient / exploration indicator / Pb-Zn-Ag polymetallic deposit / geochemistry / ore deposits
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感谢四川省冶金地质勘查局六〇五大队在野外的物探工作，感谢西藏中瑞矿业在工作过程中提供的帮助，感谢匿名审稿专家提出的有益建议！
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