The Fuxingtun silver-lead-zinc polymetallic deposit is the first large-scale silver-lead-zinc polymetallic deposit discovered in the Mesozoic continental volcanic basin in the Daxinganling metallogenic belt in the past two years. During the census of the deposit, geophysical methods such as high-precision magnetic survey on the ground, time-domain induced polarization method, and AMT sounding method were conducted. Geophysical methods played an important guiding role in the exploration of Fuxingtun silver-lead-zinc polymetallic deposit. ① Through the processing and interpretation of ground magnetic anomaly data (using RGIS software),the structure of the census area were determined; ② Using the characteristics of geomagnetic anomaly and apparent resistivity anomaly, combined with the exposed lithology on the surface, the caldera rifted basin was determined;③ Using the electrical sounding data, the formation process and structural characteristics of the faulted basin was determined, as well as the multi-stage of fault structure and the multi-stage of sulfide precipitation; ④ Based on the abnormal characteristics of apparent polarizability and the geological structure environment, the nature of the field source and the source of mineralization materials were determined;⑤ The intrusive body of cylindrical subvolcanic rock was delineated by AMT sounding data. Based on the above research results and drilling data, this paper studies the formation mechanism of the deposit and summarizes a set of application ideas for geophysical methods to find such deposits.
梁新强, 乔占华, 闫强, 王亮, 李建锋, 刘晓辉, 王淼. 物探方法在复兴屯银铅锌多金属矿区构造与成矿机理研究中的应用[J]. 物探与化探, 2021, 45(2): 323-336.
LIANG Xin-Qiang, QIAO Zhan-Hua, YAN Qiang, WANG Liang, LI Jian-Feng, LIU Xiao-Hui, WANG Miao. Application of geophysical methods in the exploration of Fuxingtun silver-lead-zinc polymetallic deposit and its metallogenic mechanism. Geophysical and Geochemical Exploration, 2021, 45(2): 323-336.
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