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Application of high⁃power induced polarization method in the exploration of the Nanzamu Gold Deposit, Xinbin, Liaoning

  • English Author:
  • Gao Zhonghui, Yuan Kun

  • Unit:
  • (Liaoning Geology and Mineral Resources Institute Co., Ltd.)
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Abstract:

The Nanzamu Gold Deposit is located within the Fushun-Qingyuan Au-Cu metallogenic belt in Eastern Liaoning, an area rich in mineral resources and densely distributed with gold deposits (spots), offering excellent pros-pecting potential. However, the high forest coverage poses challenges for significant breakthroughs in exploration. To address this, the study focused on the Nanzamu Gold Deposit, employing high-power induced polarization (IP) area measurement and IP sounding techniques to delineate ore-induced anomalies based on the IP property differ-ences between the orebody and surrounding rocks. From the results of the IP survey, 5 anomalies were identified within the mining area. Among them, a single orebody was discovered in the DJ-2 IP anomaly zone. The orebody spans 200 min length, with a maximum horizontal thickness of 3.1 min the central part and an average gold grade of 2.39 g/t. The findings indicate that the high-power IP method achieves promising results in the exploration of the Nanzamu Gold Deposit, providing both theoretical and practical support for future prospecting efforts.

Keywords:

Eastern Liaoning; Nanzamu Gold Deposit; high⁃power induced polarization; IP sounding; concealed orebody; IP anomaly; prospecting results