【摘要】：為揭示村前銅多金屬礦床成礦流體性質(zhì)與物質(zhì)來源,為礦床成因的深入研究提供依據(jù),對(duì)鐵銅硫化物石英脈中的流體包裹體和金屬硫化物進(jìn)行硫、鉛同位素分析測(cè)試。結(jié)果顯示,鐵銅硫化物石英脈中存在純液相、氣液兩相、氣液固三相和純(極富)氣相4種類型流體包裹體。流體包裹體均一溫度范圍為256~417℃,流體鹽度則分為明顯的兩個(gè)族群,一為低鹽度(7.15%~13.88%NaCl_(eqv))的氣液兩相包裹體,另一為高鹽度(31.93%~43.79%NaCl_(eqv))的氣液固三相包裹體,且二者在空間上具有共存關(guān)系,代表了流體的沸騰作用,成礦流體屬中高溫、高鹽度巖漿熱液流體。硫、鉛同位素研究表明,礦石硫同位素組成為接近1的正值,屬深源硫;鉛同位素指示礦石中鉛主要為上部地殼來源,有少量幔源鉛或殼�；煸吹脑焐綆сU,表明上部地殼對(duì)礦質(zhì)來源具有重要的貢獻(xiàn)作用。
[Abstract]:In order to reveal the ore-forming fluid property and material source of Cu-Qianqian copper polymetallic deposit and to provide the basis for further study on the genesis of the deposit, the sulfur and lead isotopic analysis of fluid inclusions and metal sulphides in the quartz veins of iron-copper sulphide were carried out. The results show that there are four types of fluid inclusions: pure liquid phase, gas-liquid two-phase, gas-liquid-solid three-phase and pure (extremely rich) gas phase. The homogenization temperature range of fluid inclusions is 2561,417 鈩，

本文編號(hào)：2186609