摘要
蓬莱地区金矿床以其富产明金而区别于与之相邻的招掖地区金矿床,经研究发现,该区金矿床中明金呈浸染状至致密块状产于少或无硫化物型的石英脉中;在空间上,多与蚀变岩型矿化体伴生,且主要产于浅部;在时间上,晚于主矿化期,明金系由浅成的有机质热泉水对成矿主期矿化的再溶解,近迁移沉淀富集的叠加成矿作用产物。
The gold deposits in Penglai area,rich in visible gold lare different from those in the adjacent Zhao -Ye area. It is found that the visible gold in the gold deposits in Penglai area occur in disseminated to compact rnassive form in the quartz veins with little or without sulphide. The visible gold is spatially associated with altered rock type of mineralized bodies and mainly found in small depth;it is later than the main mineralization period. It is the superimposed minergenetic product of the re - dissolution of principal mineralization by shallow organic hot spring water,and the enrichment of nearby transportation and precipitation.
关键词
金矿床
明金
成因
Penglai area,gold deposit,genesis of visible gold