Study on Exploration Techniques of Deep Ore Prospecting in Jinchuan Magmatic Co–Ni Sulfide Deposit, Northwest China
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摘要:
岩浆镍钴硫化物矿床是中国镍钴资源的主要来源，金川矿床在其占有绝对位置。但随着新兴产业的快速发展和低碳时代的来临，中国镍钴资源供给对外依赖程度不断攀升，镍钴战略性矿产资源安全受到严重威胁，深部找矿是实现镍钴资源增储上产的唯一途径。笔者在金川岩浆镍钴硫化物矿床的成矿地质特征、矿体分布规律系统研究的基础上，利用重磁电等地球物理异常信息与含矿岩体耦合关系，搭建地质–地球物理三维模型和深部找矿勘查技术有效性组合，梳理总结综合找矿标志及岩体含矿性评价指标，精确快速定位隐伏矿体可能的赋存空间，支撑服务金川岩浆镍钴硫化物矿床深部找矿实践，不断提升中国镍钴资源自我保障能力。
Abstract:Magmatic nickel–cobalt sulfide deposits are the main source of nickel–cobalt resources in China, and the Jinchuan deposit is the main supplier of nickel–cobalt sulfide ores in China. However, with the rapid development of emerging industries and the advent of a low–carbon era, China’s dependence on the external supply of nickel–cobalt resources continues to rise, which is a serious threat. Deep exploration is the only way to increase the storage and production of nickel–cobalt resources. Based on the systematic study of the distribution patterns of the ore bodies of the Jinchuan magmatic sulfide deposit and the gravity, magnetic, and electrical data, a geological–geophysical three–dimensional model for the deep ore exploration was established. The ore–bearing evaluation indicators were summarized, and the possible locations of hidden ore bodies were inferred. This work supports the deep exploration of the Jinchuan magmatic nickel cobalt sulfide deposit and improves China’s self–supply capacity for nickel–cobalt resources.
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图 4 金川镍钴矿床Ⅲ矿区地质简图（据甘肃省地质矿产局第六地质队，1984修改）
Figure 4.
图 7 金川矿床Ⅳ矿区纵投影图（据甘肃省地质矿产局第六地质队，1984修改）
Figure 7.
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