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在桂西北地区新发现了两个直接产于辉绿岩中、以辉绿岩为赋矿主岩的微细浸染型金矿床(点)。金矿床受断裂构造和岩性控制,含矿岩石为蚀变辉绿岩。矿区内基性岩为成矿提供了矿源和水源,并成为直接的赋矿主岩。找矿标志为:穿过辉绿岩的断裂蚀变带;发育硅化、黄铁矿化等蚀变作用;发育Au及Au、Sb、Hg、As元素综合异常。
Two new disseminated gold deposits (dots), newly formed in diabase and dominated by diabase, are newly discovered in the northwestern Guangxi province. The gold deposit is controlled by the fault structure and lithology, and the ore-bearing rocks are altered diabase. The basic rocks in the mining area provide mineral sources and water sources for mineralization and become direct ore-hosting rocks. Prospecting indicators: through diabase alteration zone; the development of silicification, pyrite alteration; development of Au and Au, Sb, Hg, As element anomaly.