论文部分内容阅读
选择贵州省灰家堡金矿田内最为典型的水银洞矿床和太平洞矿床,研究卡林型金矿床围岩蚀变过程中元素迁移规律与方式,探讨围岩蚀变与金矿化的内在联系。典型矿床围岩→矿化围岩→矿石的岩相学特征及与其对应的Grant质量平衡方程计算结果表明,卡林型金矿各成矿阶段所对应的围岩蚀变类型与通过计算所反映的元素迁移规律相一致;地球化学热力学计算结果显示,Au主要以AuHS0络合物的形式在成矿溶液中迁移。元素迁移研究的结果证明不同成矿阶段发生的围岩蚀变促进卡林型金矿主要成矿物质发生迁移,进而沉淀富集成矿。
The most typical deposits of mercury deposits and Taipingdong deposit in the Jiajiagou gold deposit are selected to study the rules and patterns of element migration during the alteration of the surrounding rock of the Carlin-type gold deposit and to explore the intrinsic relationship between alteration and gold mineralization . The petrographic characteristics of the typical ore body surrounding rock → mineralized surrounding rock → ore and the corresponding Grant mass balance equation show that the types of wall rock alteration corresponding to each metallogenic stage of Carlin-type gold deposit are similar to those calculated by calculation The results of geochemical thermodynamics show that Au migrates mainly in the form of AuHS0 complex in the ore-forming solution. The result of the element migration study shows that the alteration of the surrounding rock in different mineralization stages promotes the migration of the major metallogenic material of the Carlin-type gold deposit and further deposits and enrichment of mineralization.