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一、作者对蒂明斯南部迪洛罗群火山岩含金与不含金的燧石——磁铁矿铁建造的痕量元素和稳定同位素特征进行了对比,目的在于:1)确定这一环境内金的勘探准则:2)描述金矿化和碳酸盐蚀变的热液史。含金铁建造富含金、硫、钨、锑和二氧化碳。含金和不含金的两种铁建造具有相似的砷丰度。铁建造中的金表现为两种形式:1)原生金和保存在变质石英脉的黄铁矿里的包裹金;2)广泛分布在铁建造中的,与变质石英脉在空间上不共生的黄铁矿和磁黄铁矿颗粒中包裹的金。含金铁建造和在低温条件下被海水蚀变的玄武岩含有交代方解石,其δ13C 同位素组成为-1～-2‰(POB)。浸染状碳酸盐化蚀变带边部的方解石和核心部分的白云石.其δ13C 组成分别为-2‰和-4‰。这种趋势同蚀变带中心较高温碳酸盐沉淀物相一致。铁建造中交代碳酸盐的δ13C 组成范围从-2‰～-5‰.与磁铁矿的丰度有关。同生燧石碎屑和交代碳酸盐同遍在的含氧变质孔隙溶液有氧的交换。
The authors compared the trace elements and stable isotopic characteristics of gold and gold-bearing flint-magnetite iron in the Dioluoqun volcanic rocks in southern Timmins with the aim of: 1) Gold Prospecting Criteria: 2) Describe the hydrothermal history of gold mineralization and carbonate alteration. Gold-containing iron built rich in gold, sulfur, tungsten, antimony and carbon dioxide. Two kinds of iron, both gold and gold, have similar arsenic abundance. The performance of the iron in the construction of the iron in two forms: 1) gold and gold preserved in metamorphic quartz vein pyrite in the gold; 2) widely distributed in the iron construction, and the metamorphic quartz vein spatially non-symbiotic Gold in pyrite and pyrrhotite particles. The basalts, which are constructed of gold-bearing iron and are altered by seawater at low temperatures, contain metasomatites with a δ13C isotopic composition of -1 to -2 ‰ (POB). The calcite and core dolomite at the edge of the disseminated carbonate alteration zone have a δ13C composition of -2 ‰ and -4 ‰, respectively. This trend is consistent with the higher temperature carbonate precipitates in the center of the altered zone. The δ13C composition of the metasomatized carbonates in the iron construction ranges from -2 ‰ to -5 ‰, which is related to the abundance of magnetite. Oxygen exchange of oxygenated metamorphic pore solution with concomitant flint detritus and metasomatism.