摘要
通过氢、氧、铅同位素和流体包裹体测试,结合争光金矿床的地质、微量元素、稀土元素地球化学特征研究,表明争光金矿为岩浆低温热液矿床。成矿物质主要来源于地层,矿化类型为蚀变岩型和石英脉型。成矿流体为岩浆水、变质水和大气降水的混合液。δD值为-63‰^-85‰,1δ8O水值为-0.2‰^-7.0‰,主成矿阶段温度为133~276℃。
The Zhengguang gold deposit, occurring in Yanshanian intrusive and Carboniferous ore -bearing formations, is a low temperature hydrothermal deposit. There are altered - rock type and quartz type orebodies. Geochemical investigation reveals that the ore - forming fluids originated from the mixing of magmatie, formation and meteoritic water. The measured temperature data of fluid inclusions show that gold deposit is featured with low tempera- ture （ 133℃ - 276℃ ）, δ^18 OH2O values of quartz from - 0.2‰ to - 7.0‰, δD V-SMOW values of quartz from - 63‰ to - 85 ‰,
出处
《地质与勘探》
CAS
CSCD
北大核心
2006年第1期38-42,共5页
Geology and Exploration
基金
中国地质调查项目(编号:199920190116)
吉林大学创新基金项目(编号:403010123091)资助
关键词
地球化学
金矿床
成因
geochemistry, gold deposit, genesis
