本文關(guān)鍵詞： 西石門 金礦 黃鐵礦 激光拉曼光譜 世代 礦段　出處：《光譜學與光譜分析》2017年08期 　論文類型：期刊論文

【摘要】：通過測試西石門金礦中不同礦段、不同期次的黃鐵礦樣品的拉曼譜峰,探討了該區(qū)含金黃鐵礦拉曼譜峰位移的變化特征及其礦床學意義。測量結(jié)果表明:在240~600cm-1范圍內(nèi),黃鐵礦的拉曼譜峰表現(xiàn)為Fe—[S2]2和Au+—[S2]2-的伸縮振動。不同礦段、不同世代的黃鐵礦樣品的拉曼圖譜位移具明顯規(guī)律性:礦化最優(yōu)的330礦段,黃鐵礦的拉曼圖譜位移相對于290和370礦段,Au+—[S2]2-的伸縮振動變化大,其拉曼譜峰偏的強度大并向低頻率偏移明顯;反之,礦化差的370礦段,Fe—[S2]2的伸縮振動變化大,強度小,拉曼位移頻率變化較小;同一礦段、不同世代的黃鐵礦樣品,其拉曼譜峰變化也具有以上規(guī)律:第Ⅰ世代黃鐵礦,拉曼強度最大,拉曼譜峰向低頻偏移不明顯;反之,主成礦期(Ⅱ,Ⅲ世代)的黃鐵礦,拉曼譜峰強度較小,向低頻偏移大。這表明:對不同礦段、不同期次的黃鐵礦顆粒進行拉曼譜峰測試,可以為推測其含金性及所處的地質(zhì)環(huán)境提供依據(jù)。
[Abstract]:By testing the Raman spectrum peaks of pyrite samples from different ore segments in Xishimen gold deposit, the variation characteristics of Raman spectrum shift of gold bearing pyrite in this area and its significance in ore deposit are discussed. The results show that in the range of 240 ~ 600 cm ~ (-1), the variation of Raman spectrum shift of pyrite in Xishimen gold deposit has been studied in the range of 600 cm ~ (-1). The Raman spectrum peaks of pyrite show the extensional vibration of Fe- [S2] 2 and au-[S2] 2-. The Raman shift of pyrite samples in different ore segments and generations shows obvious regularity: the optimal mineralized 330 ore section. The Raman shift of pyrite is larger than that of the stretching vibration of au [S2] 2- in ore sections 290 and 370, the intensity of Raman peak deviation is large and the shift of Raman spectrum is obvious to low frequency, whereas the extensional vibration of Fe- [S2] 2 in section 370 with poor mineralization changes greatly and its intensity is small. The Raman shift frequency of pyrite samples in the same ore section is similar to that of pyrite samples of different generations: in the first generation, the Raman intensity of pyrite is the largest, and the Raman peak does not shift to the low frequency obviously. In pyrite of main metallogenic stage (鈪，

本文編號：1535586