广西南丹县大山锡锌矿床赋矿层位及找矿标志浅析

Analysis on ore-bearing horizon and prospecting criteria of Dashan tin-zinc deposit in Nandan County, Guangxi

大山矿床位于桂西凹陷内的南丹褶断带北段,是世界闻名的丹池多金属成矿带北段的组成部分。纳标组上段(D2n^2)地层是床最重要的赋矿层位,地表铁帽及围岩蚀变等是其找矿标志。

Dashan deposit is located in the northern part of Nandan fold fault zone in the western Guixi sag, and is a part of the world-famous northern part of Danchi polymetallic metallogenic belt. The upper member of Nabiao Formation (D2n2) is the most important ore-hosting horizon in the bed. Surface cap and wall rock alteration are the prospecting indicators.