金矿矿床成因及找矿标志探究——以陕西省镇安县金龙山地区金矿矿床为例

Causations and Symbols of Gold Mine Deposit in Jinlongshan District Shanxi Province

金龙山金矿床是近年来在南秦岭地区金找矿的新突破。上泥盆统南羊山组和下石炭统的袁家沟组高频交替叠置的台盆浊积岩相构成本区重要的含矿和容矿地层,为成矿提供了物质基础。以矿区地质为切入点,深入分析了矿床地质构造、含矿围岩蚀变、含矿热液来源、成矿物质来源、岩相古地理、含矿构造等方面,从而提出了金龙山金矿床成因为沉积—构造叠加改造成矿,并总结了找矿标志。

Jinlongshan gold deposit areas in recent years,gold prospecting in the south Qinling breakthroughs.south upper devonian and lower carboniferous Yangshan group formation group Yuan superimposed high-frequency alternating turbidite basin phase composition important in this area and the ore-ore-bearing strata,provides the material basis for the mineralization.In this paper,geological as the starting point,in-depth analysis of the deposits in geological structures,ore-bearing rock alteration,ore-bearing hydrothermal source of the ore sources,lithofacies palaeogeography,ore-bearing structures,etc.,which made the Jinlongshan deposit since deposition-construction superimposed mineralization,and summarizes the prospecting.