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用有机地球化学方法研究了华南3个重要的碳质岩系含金建造(赣东北中元古界双桥山群、桂东下寒统水口群、湘东泥盆系佘田桥组)及有关层控金矿(金山金矿、龙水金矿、石峡金矿)中有机质的特征。研究结果表明,华南碳质岩系岩石中有机碳的平均含量变化在0.15％～1.56％之间。有机质的演化程度高,沥青和石墨是构成岩石中主要的有机质显微组分。碳质岩系含金建造中金与有机碳属同生沉积,有机碳对含金建造形成的地球化学环境起了一定的控制作用。华南碳质岩系层控金矿的形成与有机质的沉积、热演化史有成因联系。
Three major carboniferous gold-bearing constructions (Meso-Proterozoic Shuangqiaoshan Group, Guidong Lower-coldstrength Shuishikou Group, Shendongqiao Formation in Eastern Hunan Province) and three major carbonaceous rock gold-bearing constructions in southern China were studied by using organic geochemical methods Regarding the characteristics of organic matter in stratabound gold mines (Jinshan Gold Mine, Longshui Gold Mine and Shixia Gold Mine) The results show that the average content of organic carbon varies from 0.15% to 1.56% in the rocks of South China carbonaceous rocks. The evolution of organic matter is high, and bitumen and graphite are the major organic components in rock. Carboniferous gold-bearing gold deposits and sedimentary organic carbon belong to the same sediments, and organic carbon plays a certain role in controlling the geochemical environment formed by the gold-bearing formation. The formation of stratabound gold deposits in the South China Carboniferous is related to the deposition and thermal history of organic matter.