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Pilot study on enzyme extraction method in Wangu gold mining area |
ZHU Li-Fen( ), LUO Jian-Lan, LU Jiang, WANG Huan-Huan, LIU Han-Jun |
Hunan Institute of Geophysical and Geochemical Exploration,Changsha 410116,China |
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Abstract In order to discuss the deep-penetrating geochemical ore prospecting method suitable for the humid environment in southern China, this paper adjusted some experimental parameters based on the enzyme leach method to form a set of indoor and outdoor operating procedures for the analysis of amorphous manganese adsorption. We chose to verify the effectiveness of the analytical method for the adsorption of amorphous manganese at the No. 505 geological prospecting line in the Wangu Gold Mine, and compared the results with the two methods of traditional soil full-scale testing and rock measurement methods. The comparison results show that the analysis method of amorphous manganese adsorption can effectively find geochemical anomalies above the concealed ore. The leaching rate of 100 mesh samples showed the characteristics of Cl>Br>I>Au>Ag>Sb>As.The anomalous sensitivity of Au and Sb detected by the amorphous manganese adsorption analytical method is higher than that of the soil total measurement, and it agrees well with the geochemical anomaly of rock measurement.
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Received: 25 February 2020
Published: 27 July 2021
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1:50 000 geochemical anomaly analysis map of Wangu gold mining area
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Soil sample collection point distribution map
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Characteristic diagram of element content in extraction solution of amorphous manganese adsorption
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元素 | Au | Sb | As | Ag | Cl | Br | I | Au | 1 | 0.614** | 0.362* | 0.057 | 0.096 | -0.211 | -0.306 | Sb | | 1 | 0.701** | 0.091 | -0.006 | -0.437* | -0.507** | As | | | 1 | 0.203 | -0.036 | -0.236 | -0.298 | Ag | | | | 1 | -0.174 | -0.195 | 0.303 | Cl | | | | | 1 | 0.348 | -0.328 | Br | | | | | | 1 | 0.29 | I | | | | | | | 1 |
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Correlation analysis of element content in -100 mesh sample extraction solution of amorphous manganese adsorption analysis method
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指标 | 极小值/% | 极大值/% | 均值/% | 中值/% | 标准差/% | wAu,-100目/wAu,全量 | 0.0901 | 2.2523 | 0.4068 | 0.3109 | 0.3961 | wSb,-100目/wSb,全量 | 0.0008 | 0.1008 | 0.0180 | 0.0068 | 0.0241 | wAs,-100目/wAs,全量 | 0.0007 | 0.1101 | 0.0134 | 0.0054 | 0.0221 | wAg,-100目/wAg,全量 | 0.0025 | 0.1268 | 0.0205 | 0.0087 | 0.0267 | wCl,-100目/wCl,全量 | 1.4934 | 9.0437 | 4.1473 | 3.6416 | 1.7204 | wBr,-100目/wBr,全量 | 0.3729 | 3.2258 | 1.1876 | 1.0000 | 0.7089 | wI,-100目/wI,全量 | 0.2375 | 2.3636 | 0.8319 | 0.7500 | 0.5110 |
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Leaching rate characteristics statistics
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Fig.3) ">
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Comparison chart of Au content in different methods(the legend is the same as Fig.3)
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Fig.3) ">
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Comparison chart of As content in different methods(the legend is the same as Fig.3)
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Fig.3) ">
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Comparison chart of Sb content in different methods(the legend is the same as Fig.3)
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Cluster analysis of line 505 with four different methods
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