摘要
成矿热液的氢、氧同位素组成与其水的类型，水／岩交换的岩石成分及同位素组成，水／岩交换时的温度及水／岩交换程度（Ｗ／Ｒ比值大小）等因素有关。应用水／岩交换理论，对新疆阿尔泰诺尔特地区阿克提什坎金－多金属成矿区成矿热液体系氢、氧同位素组成进行了研究，认为成矿热液早期既有岩浆水又有大气降水参与，随着温度降低（３３０℃→２００℃），大气降水比重逐渐增大，及至占主导地位。
The hydrogen and oxygen isotopic compositions of water in the ore fluids are related with the initial isotopic compositions of waters and rocks,chemical compositions of rocks,and the ratio of exchangeable oxygen (or hydrogen)atoms in the water to those in the rock(W/R) and the exchanging temperature.In this paper,we studied the H and O isotopic composition in the hydrothermal system of the Aketishikan Au multi metal deposit in the Nurt area of Altay,Xinjiang.The magmatic water is a prevailing component of ore forming hydrothermal water during the essential mineralization epoch.However,the meteoric water commonly participates in the last mineralization with the decrement of the temperature from about 330℃ to about 200℃.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
1998年第4期37-42,共6页
Journal of Hefei University of Technology：Natural Science
基金
国家"九五"科技攻关项目
关键词
成矿热液
氧同位素
新疆
热液矿床
氢同位素
ore forming hydrothermal water,hydrogen and oxygen isotopic composition,Water/Rock interchange process,Aketishikan
