有机烃新方法在金矿床快速定位预测中的应用:以陕西八卦庙特大型金矿床为例  

The application of a new method of organic hydrocarbons to fast locating and forecasting gold deposit: Taking Baguamiao superlarge gold depositof Shaanxi Province for example

作　　者：吴烈善[1] 韦龙明[1] 

机构地区：[1]桂林矿产地质研究院,广西桂林541004

出　　处：《地球化学》2001年第6期579-584,共6页Geochimica

基　　金：国家"九五"攻关项目(96-914-03-04);广西留学回国人员基金资助项目(桂科回0009002)

摘　　要：有机质对金属元素的迁移、沉积和富集成矿有重要的作用,有机烃是有机质最终的裂解产物,具有很强的挥发性和穿透性。研究发现,八卦庙金矿床有机烃与金矿体品位呈密切相关关系,矿床的矿化富集中心也是有机烃的浓集中心。利用有机烃的这一特点可以进行隐伏金矿床的定位预测研究。Organic matters play an important role in migration, precipitation and enrichment to form deposit of metal elements. Organic hydrocarbon is the final cracking product of organic matter, and has strong volatility and penetrability. The results show that hydrocarbon content of the rocks is from one to thirty nine times higher than that of the soil in the Baguamiao gold deposit. In thesame type of rock, the altered and decolored rocks have much higher hydrocarboncontent than the unaltered rock. The quartz vein has higher hydrocarbon contentthan the rock. Organic hydrocarbon content has a positive correlation with goldcontent of orebody in the Baguamiao gold deposit. Both in portrait and landscape orientation, the hydrocarbon content decreases from the center to the border of the orebody, showing that the center of mineralization and enrichment of the deposit is also the concentration center of organic hydrocarbon. The characteristics of organic hydrocarbon can be used to locate and forecast hidden gold deposit. The guideline of distinguishing gold mineralization scale using hydrocarbon content is also summarized.

关 键 词：有机烃 金矿床 定位预测 陕西 矿化富集中心 成因 

分 类 号：P618.510.8[天文地球—矿床学]