老挝爬奔金矿金矿化及其围岩蚀变过程元素迁移

Elements migration of gold mineralizatiom and wall-rock alteratiom process of the Phabon gold deposit in Laos

根据水岩反应理论,通过对矿化蚀变岩与围岩的对比分析,对爬奔金矿围岩在矿化蚀变过程中的元素迁移规律进行了分析研究,结果表明在金矿化热液蚀变过程中,不同元素带入带出程度不同,具有一定的迁移规律,主要带入元素为Au、Hg、As、W,元素W的带入说明含矿热液可能与深部岩浆有关,地球化学W异常为后期找矿提供了新的指示性线索。

According to the water-rock reaction theory,through the comprative analysis of surrouding rocks and altered rocks,as well as the elements migrations study covers the phyllite process of mineralizatiom and alteration in the Phabon gold deposit.It is shown that various elements are carried in and out at different degrees in the process of gold mineralization and alteration,the element migration is obvious.The main elements is Au、Hg、As、W which have been brought into wall-rock.Element W maybe illustrate that hydrothermal fluids may be associated with deep magma.we were used to ignore W anomaly.After this study,we know that anomaly W is closely related to the ore-bearing hydrothermal fluid,which provides new indicator clues for the later geological exploration.