【摘要】 盘古山钨矿是江西南部重要的黑钨矿-辉铋矿石英脉型矿床之一,对该矿床主成矿期形成的5件石英样品进行了氢氧同位素测定,结果显示,δ18O值变化范围为11.35%~13.33‰,δD变化于-65%~-58%之间,计算后得到的成矿流体的δ18O值变化范围为3.96%~5.94‰。据此判断,盘古山钨矿的成矿流体在主成矿阶段主要由岩浆水构成,结合前人的研究成果,进一步分析认为石英脉型钨矿主成矿阶段主要为岩浆流体,而大气降水的兑入则可能多发生于晚成矿阶段。更多还原

【Abstract】 Pangushan tungsten deposit is one of the most important wolframite-bismuthinite quartz vein type deposit in southern Jiangxi.Five quartz samples formed in the main ore-forming stage were used for hydrogen and oxygen isotope study.The result shows that:the range of δ18O values varied from 11.35 ‰ to 13.33 ‰,δ D varied from-65% to-58%,the calculated δ18O values of the ore-forming fluid varied from 3.96‰ to 5.94‰.Thus,the ore-forming fluid of Pangushan tungsten deposit mainly composed of magmatic water in the main ore-forming stage,Taking the results of previous studies into account,the ore-forming fluid of quartz vein type tungsten deposit in main ore-forming stage is dominant in magmatic fluid,the meteoric water constantly mixed in the fluid during the later ore-forming stage.更多还原