新山矿区是云南个旧锡矿五大矿田之一——卡房矿田的一部分,现以开采锡、铜、钨矿为主。一般认为新山透辉石岩为燕山期岩浆热液交代成因(李树基,1984),通过野外实地考察和实验数据分析,我们发现在新山矿区应有两套透辉石岩:一种产在新山岩体边部,与新山花岗岩密切相关;另一种则 Johor Bahru mine is one of the five major ore mines in Gejiu, Yunnan Province, a part of the Qiafang ore field, and is now mainly engaged in the mining of tin, copper and tungsten ore. It is generally believed that the Neoproterozoic rock is the genesis of the Yanshanian magmatic hydrothermal fluid (Li Shuji, 1984). Through field investigation and experimental data analysis, we found that there should be two sets of diopside rocks in the Xueshan mining area: Body edge, closely related with the Xinshan granite; the other is