论文部分内容阅读
铍是一种稀有金属元素,在地壳中的含量约6×10-4。目前发现含铍的矿物约有50多种,具有工业价值的铍矿物主要有绿柱石、金绿宝石、硅铍石、日光榴石,其中最为常见的为绿柱石。近年来,我们通过对滇东南老君山矿集区北部马卡钨多金属矿床研究,发现该区伴生有Be资源,且Be以独立矿物日光榴石的形式存在,这与该矿集区其他铍矿床(绿柱石型)有所不同。通过详细的扫描电镜微区分析,可知研究区的日光榴石与白钨矿、萤石共生。研究表明,一般与石英脉型W矿有关的Be矿多为绿柱石型,而日光榴石多产在夕卡岩型矿床,故日光榴石的发现,除了其本身为一种新资源外,可能还指示了马卡钨多金属矿床的空间成矿模型为上部石英脉型、深部夕卡岩型。
Beryllium is a rare metal that has a content of about 6 × 10-4 in the crust. Currently found that there are about 50 beryllium minerals, beryllium minerals with industrial value are mainly beryl, gold emerald, silicon beryllium stone, solar garnet, the most common is beryl. In recent years, through the study of the Maca tungsten polymetallic deposit in the northern part of Laojunshan ore-bearing area in Southeast Yunnan, we found that there are Be resources associated with this area, and that Be exists in the form of an independent mineral sunlite, which is closely related to other beryllium The deposit (beryl type) is different. Through the detailed scanning electron microscopic analysis, it can be seen that the study area of the garnet and scheelite, fluorite symbiosis. The results show that the beryllium generally associated with quartz vein type W ore is mostly beryl and the solar garnet is prolific in the skarn type deposit. Therefore, the discovery of solar garnet, in addition to itself as a new resource, It may also indicate that the spatial mineralization model of the Maca tungsten polymetallic deposit is an upper quartz vein type and a deep skarn type.