摘要
本文通过对桂东地区主要金矿的氢、氧、碳同位素组成特征研究所取得的成矿信息,探讨了金矿成矿溶液性质、来源及演化过程,指出产于不同地质体内的金矿,其成矿溶液性质、来源不完全一致。但总的特征是以岩浆水为主,混有少量变质水和大气降水的混合溶液,矿床成因应属多种热液复合叠加型的复成因类型金矿,并探讨了氢氧同位素在找矿上的应用。
On the basis of information obtained from studies on the isotopic compositions of hydrogen, oxygen and carbon, this paper mainly discusses the nature, provenance and evolution of the ore-forming
fluids of the gold deposits. It is suggested that the ore - forming fluids of gold deposits in various geological units may differ in nature and may have been derived from different sources. Studies indicate that the ore-forming fluids are dominated by magmatic water intermingled with a small amount of metamorphic water and meteoric water, and that the gold deposits should belong to polygenetic and compound deposits formed by superimposition of poly-hydrothermal fluids. In this paper the application of the isotopic compositions of hydrogen and oxygen as a guide to prospecting is also discussed.
