摘要
福建上杭县紫金山矿田是中国发现并保存较完整的浅成热液-斑岩铜金多金属成矿系统。紫金山超大型高硫型金铜矿是该矿田的核心组成部分,通过十多年基于短波红外光谱技术的勘查找矿应用示范,累积形成覆盖整个矿田的百万级短波红外光谱大数据库。文中通过对紫金山金铜矿床明矾石、叶腊石、高岭石类和云母族矿物的短波红外光谱数据的进行模拟计算,其结果与实际测得矿物全定量分析结果具备良好的相关性,能实现光谱的传统定性解译有效转化为定量解译,进而构建典型蚀变矿物的三维模型,实现与查明了厘米级精度的矿物三维空间分布规律,对紫金山金铜矿床的深部找矿预测具有重大指导意义。
Zijinshan orefield in Shanghang, Fujian Province, is a super-large epithermal-porphyry Cu-Au polymetallic metallogenic system with good preservation discovered in China. Zijinshan super-large high-sulfur gold-copper deposit is the core part of the Zijinshan orefield. Through more than ten years of demonstration of exploration and prospecting based on short-wave infrared spectroscopy technology, a database containing massive amounts of short-wave infrared spectra data covering the whole orefield was built. In this article the typical altered minerals of alunite, pyrophyllite, kaolinite and sericite group in Zijinshan gold-copper deposit were calculated by using quantitative method simulation, and it showed a good correlation between its results and actual measured mineral quantitative analysis results. It can effectively transform the traditional qualitative interpretation into quantitative interpretation of spectra, and then construct a three-dimensional model of typical altered minerals, and clarify and realize the three-dimensional spatial distribution law of minerals with centimeter-level accuracy, which is of great significance for the deep prospecting prediction in Zijinshan gold-copper deposit.
作者
赖晓丹
张锦章
李晶
杨凯
祁进平
蒋姣姣
LAI XiaoDan;ZHANG JinZhang;LI Jing;YANG Kai;QI JinPing;JIANG JiaoJiao(Zijin Mining Group Co.Ltd.,Longyan 364200,Fujian,China;China University of Geosciences,Beijing,100083,China;Australian X-ray Tube PTY Ltd.,Perth 6102,Australian;Nanjing Youyipu Technology Co.Ltd.,Nanjing 210016,Jiangsu,China)
出处
《矿床地质》
CAS
CSCD
北大核心
2023年第1期55-65,共11页
Mineral Deposits
基金
国家重大科学仪器开发专项“岩心光谱扫描仪立体填图矿产勘查应用研究”(编号:2012YQ05025007)资助。
关键词
地质学
短波红外
大数据
定量预测
紫金山
金铜矿
geology
short-wave infrared spectroscopy
big data
quantitative prediction
Zijinshan gold-copper deposit
