铟是一种具有战略性资源意义的稀有金属之一(Chakhmouradian et al.,2015),中国产量占世界的一半以上(Tolcin,2015)。我国铟主要分布在云南、广西、内蒙古、青海和广东等5省,占全国总储量的94.4%(冉俊铭等,2008)。我国富铟矿床的研究主要集中在华南地区的大厂矿田,且多数为锡多金属矿床。其中最为著名的富铟矿床有广西大厂矿床、云南个旧和都龙矿床、内蒙古的孟恩陶勒盖和大井矿床等(张乾等, Indium is one of the rare metals with strategic resource implications (Chakhmouradian et al., 2015), which accounts for more than half of the world’s production (Tolcin, 2015). Indium in China is mainly distributed in 5 provinces including Yunnan, Guangxi, Inner Mongolia, Qinghai and Guangdong, accounting for 94.4% of the total national reserves (Ran Junming et al., 2008). Research on Indium-rich deposits in China mainly concentrates on Dachang orefields in southern China, and most of them are tin polymetallic deposits. The most famous Indium-rich deposits are Dachang deposits in Guangxi, Gejiu and Dulong deposits in Yunnan, Meng’en Tolgoi and Dajing deposits in Inner Mongolia, etc. (Zhang et al,