中南大学学报（自然科学版）2011，Vol.42Issue(4)：1066-1071,6.
青海德合龙洼铜金矿床成矿流体特征
Characteristics of ore-forming fluid of Dehelongwa copper-gold deposit in Qinghai
摘要
Abstract
Based on the study of the fluid inclusion, micro-thermometry and rare earth element analyses, the characteristics of ore-forming fluid, fluid evolution and the origin of the Dehelongwa copper-gold deposit were discussed and systematically studied. The results show that these inclusions consist of phases of gas and liquid, with minor inclusions of liquid, and the compositions of gas in the inclusions are H2O and CO2. The homogenization temperature,salinity and density of fluid for the major mineralization phase range from 327 ℃ to 367 ℃, 3.4％ to 6.4％ and 0.55 g/cm3 to 0.88 g/cm3, respectively. In fluid inclusions of quartz and pyrite, LREE (light rare earth element) is enriched,HREE (heavy rare earth element) is loss, and negative Eu is abnormal.关键词
德合龙洼/成矿流体/稀土元素/青海Key words
Dehelongwa/ ore-forming fluid/ rare earth element (REE)/ Qinghai分类
天文与地球科学引用本文复制引用
傅晓明,戴塔根..青海德合龙洼铜金矿床成矿流体特征[J].中南大学学报（自然科学版）,2011,42(4):1066-1071,6.基金项目
国家自然科学基金资助项目(41073036) （41073036）
湖南省自然科学基金资助项目(07JJ6071) （07JJ6071）
