玲珑金矿田金的迁移形式及其地球化学意义

THE MIGRATION PORM OF GOLD IN THE LINGLONGGOLD OREFIELD AND ITS GEOCHEMICAL SIGNIFICANCE

本文用地球化学方法研究了玲珑金矿田各类金矿床中金的迁移形式及其化探意义。结果表明:全以AuCl4-、AuCl2-、Au(HS)2-和Au2S(HS)22-等多种络合物形式迁移,在早期高温阶段以AuCl2-为主,后期中低温阶段以Au(HS)2-为主。这对热释氯和地电化学测量等地球化学找金新方法的研究与应用具有重要意义。

Abstract Using geochemical methods, this paper studies the migration form of gold in various gold deposits of the Linglong gold orefield and its geochemical significance. The results show that gold migrated in the form of various complexes such as AuCl1, AuCl2, Au(HS)2- and Au2S(HS)22-, with AuCl2-dominant in the early hypothermal stage and Au(HS)2- dominant in the late mesothermal-epithermal stage. This understanding is of great significance in the study and application of new geochemical gold prospecting techniqes such as thermal chlorine-releasing and geoelectrical chemical survey.