广西贺州冷水冲金矿床成矿特征及规律

Metallogenic Characteristics and Regularities of Lengshuichong Gold Deposit in Hezhou,Guangxi Province

冷水冲金矿床产于寒武系碳质砂页岩中,顺层分布的特征较为明显,矿体以石英脉或石英网脉形式产于断裂破碎带中。该区寒武系中金丰度值较高,构成了含金地质体。本区构造活动强烈,断裂破碎带发育,冷水冲金矿体是在主断裂的控制下由含矿热液沿断裂破碎带充填而成。各矿脉常平行分布,受矿区内褶皱、断裂的控制。由于构造活动的多期、多阶段性,矿体内石英脉及金矿化也具有多期性的特点。

Lengshuichong gold deposit forms in the carbonaceous sandstone and shale of Cambrian. The characteristics of bedding distribution is obvious. The ore formed in fracture zone with the form of quartz vein quartz stockwork. The abundance of gold have higher value in Cambrian, which become a gold-bearing geological body. It intense violent tectonic activities and development of fracture zones. The gold orebody in the Lengshuichong is formed by ore-bearing hydrotherreal solution filling along fracture zone which is controlled by main faults. Controlled by the folds and fracture in mining area,the vein is usually parallel distribution. As the multi-period and multi-stage of tectonic activity ,the quartz vein in ore body and gold mineralization also have characteristics of the period.