| 西藏雄村矿集区普钦木-哑达地区地球物理特征及找矿方向 |
| 投稿时间：2025-01-08 修订日期：2025-04-08 点此下载全文 |
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| 基金项目:国家重点研发计划项目（2022YFC2905002）、国家深地科技重大专项（SQ2024AAA060124）、中国地质调查局项目（DD20240069-05，KD-[2024]-XZ-089）、西藏自治区科技计划项目（XZ202401YD0066）、成都理工大学珠峰科学研究计划（2020ZF11407） |
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| 中文摘要:雄村矿集区位于冈底斯成矿带中段南缘，前人开展了大量研究及勘查工作，基于成矿理论研究，通过物化探手段结合工程验证成功发现了雄村1号、2号超大型斑岩型Cu-Au矿体，已探明Cu金属量超250万吨、伴生Au超250吨，伴生Ag超1000吨，属超大型规模。但雄村矿集区1号和2号矿体外围尚存在多处土壤和岩石Cu-Au元素异常，需进一步开展评价工作，以指导勘查工作部署。为此，在总结雄村矿集区土壤和岩石地球化学异常的基础上，对普钦木-哑达土壤、岩石地球化学异常进一步开展了激电中梯测量工作，在普钦木圈定了高视极化率、低视电阻率的J1异常区，在哑达圈定了中-高视极化率、中-低视电阻率的J2异常区，部署钻探工程大致控制了J1异常区的深部铜金矿体（雄村3号矿体），部署槽探工程揭露了J2异常区地表的铜金矿体，认为两个异常区均为矿致异常，并提出J1异常的深部和边部、J2异常的深部具有重大找矿潜力，是未来雄村矿集区的重点找矿区域。 |
| 中文关键词:地球物理 找矿方向 普钦木-哑达 雄村矿集区 冈底斯 |
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| Geophysical Characteristics and Prospecting Direction of Puqingmu-Yada Area in the Xiongcun District, Tibet |
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| Abstract:The Xiongcun district is located on the southern margin of the central segment of the Gangdese metallogenic belt. Extensive research and exploration have been conducted in this area. Through geophysical and geochemical exploration combined with engineering validation, the Xiongcun No. 1 and No. 2 porphyry Cu-Au deposits have beendiscovered. The total Cu metal content exceeds 2.5 million tons, with associated Au over 250 tons and Ag over 1000 tons, making it an exceptionally large-scale deposit. However, many soil and rock Cu-Au element anomalies still exist in the periphery of No.1 and No.2 deposits in Xiongcun district, requiring further evaluation to guide the deployment of exploration work. In this context, by summarising the geochemical anomalies of soil and rock in the Xiongcun district, this paper carries out an electro-excitation physical survey in the Puqinmu-Yada area. And circles the J1 anomalous area with high apparent polarisation and low apparent resistivity in Puqinmu, and the J2 anomalous area with medium-high apparent polarisation and medium-low apparent resistivity in Yada. The two anomalies were also verified by drilling and trenching engineering, which revealed copper-gold ore bodies at the depth of the J1 anomaly and the surface of the J2 anomaly. It also concluded that the two anomalies are mineralised. It proposed that the deep and marginal parts of the J1 anomaly and the deep parts of the J2 anomaly have significant potential for ore searching, and are the key areas for future ore searching in the Xiongcun district. |
| keywords:Geophysical Prospecting direction Puqinmu-Yada Xiongcun district Gangdise |
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