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<p>To assess the prospecting potential of the Halongerma Cu-polymetallic deposit in the East Kunlun Metallogenic Belt, this study implemented 1:10,000-scale high-precision ground magnetic surveys, induced polarization (IP) surveys, and audio-magnetotelluric (AMT) surveys targeting phyllic alteration zone I, and established a comprehensive geophysical profile. Magnetic surveys delineated a high-amplitude positive magnetic anomaly and a weak magnetic anomaly (~230 nT) associated with the phyllic alteration zone I, effectively delineating the distribution of rock masses. IP surveys identified a low-resistivity and high-chargeability anomaly consistent with Zone I; trench exploration in this area re-vealed 7 Cu-Ag-W ore bodies and 4 Cu-W-Mo mineralized bodies. AMT 2D resistivity inversion results showed a high-resistivity body inferred as the deep extension of K-feldspar granite, a low-resistivity ore-bearing tectonic fractured zone, and large-scale low-resistivity anomalies with significant mineraliza-tion potential. After analyzing the geological characteristics, metallogenic regularity, and geophysical anomalies, it is considered that there is metallogenic potential in the deep part, and deep drilling verifica-tion has been carried out. Drill hole ZK001 verified 3 Zn mineralized bodies, 1 Cu ore body, and 3 Cu mineralized bodies, realizing a breakthrough in deep prospecting. This study confirms that the combined “magnetic + IP + AMT” method is effective for exploring this type of deposit, offering a valuable paradigm for similar regional prospecting efforts.</p>

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Geophysical Characteristics and Prospecting Significance of the Halong’erma Polymetallic Deposit in the East Kunlun Metallogenic Belt

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • You Zhou,
  • Zhi-Qiang Zhang,
  • Ji-En Dong,
  • Hai-Yue Fu,
  • Fa-Long Qi,
  • Wen-ke Fan,
  • Hao Ren,
  • Xue-lin Huang

摘要

To assess the prospecting potential of the Halongerma Cu-polymetallic deposit in the East Kunlun Metallogenic Belt, this study implemented 1:10,000-scale high-precision ground magnetic surveys, induced polarization (IP) surveys, and audio-magnetotelluric (AMT) surveys targeting phyllic alteration zone I, and established a comprehensive geophysical profile. Magnetic surveys delineated a high-amplitude positive magnetic anomaly and a weak magnetic anomaly (~230 nT) associated with the phyllic alteration zone I, effectively delineating the distribution of rock masses. IP surveys identified a low-resistivity and high-chargeability anomaly consistent with Zone I; trench exploration in this area re-vealed 7 Cu-Ag-W ore bodies and 4 Cu-W-Mo mineralized bodies. AMT 2D resistivity inversion results showed a high-resistivity body inferred as the deep extension of K-feldspar granite, a low-resistivity ore-bearing tectonic fractured zone, and large-scale low-resistivity anomalies with significant mineraliza-tion potential. After analyzing the geological characteristics, metallogenic regularity, and geophysical anomalies, it is considered that there is metallogenic potential in the deep part, and deep drilling verifica-tion has been carried out. Drill hole ZK001 verified 3 Zn mineralized bodies, 1 Cu ore body, and 3 Cu mineralized bodies, realizing a breakthrough in deep prospecting. This study confirms that the combined “magnetic + IP + AMT” method is effective for exploring this type of deposit, offering a valuable paradigm for similar regional prospecting efforts.