摘要
秘鲁阿蒂科矿床是一个铁氧化物铜金矿床。含矿石英脉的流体包裹体均一温度为107~389℃,盐度为2.2%~23.18%NaCl。均一温度数据呈近似正态分布,但是,盐度数据总体不呈正态分布,且盐度较低,主要集中于0~10%NaCl和20%~30%NaCl之间。矿床δD_(V-SMOW)和δ ^(18)O_(H_2O)的组成投影点靠近雨水线,反映该矿床成矿流体为大气降水来源。
The Atico deposit is an IOCG deposit.Homogenization temperature of fluid inclusions in quartz varies from107℃to389℃.The salinity range is2.2%~23.18%NaCl.The homogenization temperatures are approximately in normal distribution,whereas the salinities are not in normal distribution and low,being mainly concentrated on0~10%NaCl and20%~30%NaCl.The fact that subpionts ofδDV-SMOW andδ18OH2O of samples in the deposit suggests that the ore-forming fluids were mainly derived from atmospheric precipitation.
作者
徐鸣
刘君安
郭维民
曾勇
XU Ming;LIU Jun-an;GUO Weimin;ZENG Yong(Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China)
出处
《地质通报》
CAS
CSCD
北大核心
2017年第12期2235-2242,共8页
Geological Bulletin of China
基金
中国地质调查局项目<海上丝绸之路大洋洲和南美洲矿产资源潜力评价>(编号:DD20160110)
