金川岩浆镍钴硫化物矿床深部找矿勘查技术研究  

Study on Exploration Techniques of Deep Ore Prospecting in Jinchuan Magmatic Co-Ni Sulfide Deposit,Northwest China

作　　者：张照伟[1] 谭文娟[1] 杜辉[1] 黑欢[1] 贺永康[1] ZHANG Zhaowei;TAN Wenjuan;DU Hui;HEI Huan;HE Yongkang(Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits,MNR,Xi’an Center of China Geological Survey,Xi’an 710119,Shaanxi,China)

机构地区：[1]自然资源部岩浆作用成矿与找矿重点实验室,中国地质调查局西安地质调查中心,陕西西安710119

出　　处：《西北地质》2023年第6期242-253,共12页Northwestern Geology

基　　金：第二次青藏高原综合科学考察研究“稀贵金属(金、镍、钴、铬铁矿、铂族元素)科学考察与远景评估”(2019QZKK0801);陕西省创新能力支撑计划-创新人才推进计划“岩浆作用成矿与找矿创新团队”(2020TD-030);中国地质调查局项目“西北地区昆仑-秦岭等成矿区带重点调查区锂镍等战略性矿产调查评价”(DD20230048)联合资助。

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。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.

关 键 词：岩浆镍钴硫化物矿床 成矿特征 找矿潜力 勘查技术 金川 

分 类 号：P588.1[天文地球—岩石学] P597[天文地球—地质学]