本区辉长岩沿宽沟背斜南翼分布,多被海西期花岗岩切割或包裹。在主矿以南和东部接触带都有分布。 本次研究中,选择了三种不同类型的辉长岩作了稀土总含量和单一稀土元素含量的分析。第一种是主矿南部铁路附近距花岗岩最近的矿物颗粒较细的边缘相辉长岩(B_2);第二种是距花岗岩较远的属于中心相的辉长岩(B_1);第三种是东部接触带炸药库附近斜 The gabbro in this area is distributed along the south wing of the anticlinal anomaly and is mostly cut or wrapped by Hercynian granites. In the main mine to the south and east have contact zone distribution. In this study, three different types of gabbro have been selected for analysis of the total rare earth content and single rare earth element content. The first is the nearest gneissic gabbro (B 2) near the main railway south of the granite, the gabbro belonging to the central facies farther from the granite (B 1) and the third It is the eastern contact zone with explosives near the slope