西藏斯弄多银多金属矿床地球物理和地球化学勘查进展

杨宗耀; 唐菊兴; 任东兴; 邓安; 王鹰; 吴鑫

doi:10.3799/dqkx.2022.195

Volume 49 Issue 3

Mar. 2024

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Yang Zongyao, Tang Juxing, Ren Dongxing, Deng An, Wang Ying, Wu Xin, 2024. Geochemical and Geophysical Exploration in Sinongduo Ag Polymetallic Deposit, Xizang. Earth Science, 49(3): 1081-1103. doi: 10.3799/dqkx.2022.195

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Yang Zongyao, Tang Juxing, Ren Dongxing, Deng An, Wang Ying, Wu Xin, 2024. Geochemical and Geophysical Exploration in Sinongduo Ag Polymetallic Deposit, Xizang. Earth Science, 49(3): 1081-1103. doi: 10.3799/dqkx.2022.195

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Geochemical and Geophysical Exploration in Sinongduo Ag Polymetallic Deposit, Xizang

doi: 10.3799/dqkx.2022.195

Yang Zongyao^{1, 2
,
,},
Tang Juxing^{3
,
,},
Ren Dongxing¹,
Deng An¹,
Wang Ying²,
Wu Xin⁴

1.
Chengdu Surveying Geotechnical Research Institute Corporation Limited of MCC, Chengdu 610023, China
2.
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
3.
Institute of Mineral Resources, CAGS, Beijing 100037, China
4.
Chengdu Engineering Corporation Limited, PowerChina, Chengdu 611130, China

Received Date: 2022-04-12
Available Online: 2024-04-12
Publish Date: 2024-03-25

Abstract

Abstract

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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References(62)

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Geochemical and Geophysical Exploration in Sinongduo Ag Polymetallic Deposit, Xizang

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