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The application of integrated measures to the search of magma conduit: A case study of the Yangliuping Cu-Ni sulfide deposit, Sichuan Province |
YUE Da-Bin( ), WANG Zang-Xiang, CHEN Jia-Zhong, YANG Xiu-Juan |
No. 402 Geological Party, Bureau of Geology and Mineral Exploration of Sichuan Province,Chengdu 610073, China |
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Abstract According to the theory of 'large-scale mineralization occurring in small intrusion' and 'magma conduitsystem', the authors investigated the magma conduit of the Yangliuping magmatic Cu-Ni sulfide deposit.On the basis of the study of all geological documents, the values ofw(Pd)/w(Ir)、w(Ni)/w(Cu) were used to estimate the moving direction of magma conduit. Then geological profiles, high precision geomagnetic survey and the AMT measure were deployed in search for the magma conduit. The integrated measures in search for deeply-buried orebodies at Yangliuping was summarized.
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Received: 28 February 2020
Published: 27 July 2021
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Generalized geologic map of Yangliuping deposit
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Correlation between platinum group element
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PGE-Rb,PGE-Sr covariation diagram of Yangliuping Cu-Ni sulfide deposit
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岩体名称 | 平均含量 | 比值 | w(Ni)/% | w(Cu)/% | w(Pd)/10-6 | w(Ir)/10-6 | w(Ni)/w(Cu) | w(Pd)/w(Ir) | 协作坪 | 0.433 | 0.176 | | | 2.46 | | 正子岩窝 | 0.347 | 0.161 | 0.321 | 0.015 | 2.16 | 21.4 | 杨柳坪 | 0.317 | 0.093 | 0.1115 | 0.0125 | 3.41 | 8.92 | 台子坪 | 0.1855 | 0.0537 | 0.0975 | 0.01187 | 3.45 | 8.22 |
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The elements statistics of Ni,Cu,Pd,Ir for Yangliuping Deposit
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岩矿石名称 | 剩余磁化强度Jr/10-6CGSM | 磁化率κ/10-6CGSM | 最小值 | 最大值 | 常见值 | 变化范围 | 最小值 | 最大值 | 常见值 | 变化范围 | 稀疏浸染镍矿石 | 122 | 3743 | 773 | 300~1062 | 29 | 2643743 | 125 | 31~220 | 稠密浸染镍矿 | 402 | 9606 | 5293 | 756~9200 | 478 | 5819 | 3145 | 570~5720 | 矿化滑石岩 | 440 | 1297 | 868 | 440~1297 | 55 | 202 | 128 | 55~202 | 次闪石岩 | 84 | 195 | 140 | 84~195 | 26 | 29 | 28 | 26~29 | 蚀变辉长岩 | 124 | 138 | 131 | 124~138 | 38 | 213 | 126 | 38~213 | 石英大理岩 | 81 | 605 | 262 | 81~442 | 52 | 673 | 248 | 52~448 | 炭质板岩 | 86 | 134 | 106 | 86~128 | 92 | 191 | 132 | 92~175 | 绢云英片岩 | 73 | 276 | 199 | 80~275 | 252 | 690 | 417 | 252~690 |
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The magnetic parametric statistics of samples of all kind of rocks and ores
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岩矿石名称 | 极化率η/% | 电阻率ρ/(Ω·m) | 最小值 | 最大值 | 常见值 | 变化范围 | 最小值 | 最大值 | 常见值 | 变化范围 | 稀疏浸染镍矿 | 2.84 | 33.26 | 16.37 | 3.60~29.15 | 272 | 3200 | 1407 | 350~2460 | 稠密浸染镍矿 | 7.24 | 11.10 | 8.47 | 6.36~10.58 | 60 | 256 | 124 | 64~184 | 矿化滑石岩 | 12.70 | 13.93 | 13.32 | 12.70~13.93 | 1672 | 2073 | 18.72 | 1672~2073 | 次闪石岩 | 5.47 | 17.32 | 11.40 | 5.47~17.32 | 2233 | 2551 | 2392 | 2233~2551 | 蚀变辉长岩 | 5.39 | 4.27 | 4.83 | 4.27~5.39 | 3696 | 4652 | 4174 | 3696~4652 | 石英大理岩 | 3.74 | 18.12 | 8.70 | 3.74~14.15 | 4534 | 10409 | 7758 | 5416~10100 | 炭质板岩 | 9.66 | 38.35 | 21.63 | 9.66~34.21 | 218 | 4552 | 2004 | 218~4004 | 绢云英片岩 | 5.60 | 9.60 | 7.25 | 5.60~9.60 | 5352 | 11781 | 8726 | 5500~11781 |
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The electrical resistivity parametric statistics of all kind of rocks and ores
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The plan of magnetic survey and profiles of integrated geophysics survey
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The slice diagram of profiles of integrated geophysics survey
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