The application of pyrite LA-ICP-MS trace element analysis to gold deposits
Ye Tian1,2,3, Li Nuo1,2
1. Xinjiang Research Center for Mineral Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi 830011;
2. Xinjiang Laboratory of Mineral Resources and Digital Geology, Ürümqi 830011;
3. University of Chinese Academy of Sciences, Beijing 100049
Laser ablation-inductively coupled plasma-mass spectrometer(LA-ICP-MS)is a newly-developed techniques for in situ trace element analysis of sulfides and oxides, offering high sensitives, low detection limit, and simultaneous capture of up to 20 trace elements. In this contribution, we review its application to gold deposit, and conclude that once combined with backscattered electron mode of scanning electron microscopy, X-ray elemental mapping, in situ sulfur/iron isotope analyses, pyrite LA-ICP-MS analysis can be used to determine the distribution of trace elements in pyrite, track their remobilization-transportation during deformation-metamorphism, probe into the composition and evolution the ore-forming fluids, determine potential sources of metals, depict detailed ore-forming processes, and constrain the genesis of ore deposits.