南岭金矿成矿区金矿主要分布于大瑶山槽背斜与云开隆起区，据统计，桂粤两省的金矿床（点）74%左右集中产于该区的寒武系八村群岩层里。区内寒武系为一套冒地槽类型复理石碎屑岩建造，其中夹多层碳质页岩及含碳质砂岩，含碳量高达10%左右。金矿围岩主要为硅质岩，碳质页岩及碳质碎屑岩等。岩层含金丰度值，据南京大学化学光谱分析，碳质页岩平均32.5×10－9；泥质砂岩4.4×10－9。据广西冶勘公司分析，砂岩80×10－9，碳质页岩高达130×10－9，明显高于金的克拉克值。桃花、古袍、云岭等矿区，矿石硫δ34S变化范围为－0.9‰～＋6.4‰及1.05‰～8.2‰，显示有壳层硫的性质。桃花矿区铅同位素年龄为729～785Ma，比寒武纪地层和加里东花岗岩的时代还老。因而认为本区成矿物质来自深部，也来自寒武系含金矿源层。本区北邻江南古陆，其基底为元古宇冷家溪群、板溪群，这一古老含金地层可为该区的上部寒武系提供金的物质来源。
Nanling Metallogenic Zone gold deposits are mainly distributed in Dayaoshan trough anticline and Yunkai uplift, according to statistics, two of the gold deposit in Guangxi and Guangdong Province (about 74% points) mainly produced in the area of Cambrian rock village eight group. The area is a set of miogeosyncline type flysch clastic rock formation, which clamps the carbonaceous shale and carbonaceous sandstone layers, the carbon content of up to about 10%. Gold mineralization is mainly siliceous rocks, carbonaceous shale and carbonaceous clastic rocks etc.. Rock gold abundance, according to the analysis of Nanjing University chemical spectrum, the carbonaceous shale average of 32.5 * 10 - 9; 4.4 * 10 shaly sand - 9. According to the analysis of Guangxi metallurgical exploration company, 80 * 10 - 9 sandstone, carbonaceous shale up to 130 x 10 - 9, significantly higher than the Clark value of gold. Peach, Gupao, Yunling and other mining, ore sulfur Delta 34S ranged 0.9 ~ + 6.4 per thousand and 1.05 per thousand to 8.2 per thousand per thousand, that has the properties of shell sulfur. The peach Pb isotopic age is 729 ~ 785Ma, than the Cambrian strata and Caledonian granitoids are old. Thus the minerals from the deep, but also from the gold bearing source bed of cambrian. The area north of the Jiangnan, the basement of Proterozoic LENGJIAXI group and Banxi group, the ancient gold bearing strata can be the source of gold for Upper Cambrian in the area.
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