论文部分内容阅读
本文报导了湘南某地黄玉岩的地质产状、岩石化学、微量元素、包裹体测温,主要组成矿物(黄玉、锡石、电气石、毒砂)的化学成分。同时也介绍了黄玉岩的主岩(大义山岩体)的岩石类型、岩石化学、微量元素及副矿物特征。 通过与国内外富黄玉的各类岩石比较,作者认为,这是在我国第一次发现的一种岩石,它们是富挥发组分(尤其是F、B)的残余岩浆的结晶产物。 黄玉岩的研究资料,对于认识花岗岩浆的分异演化机理、锡矿化与花岗岩类的成因联系及锡矿找矿工作都具有一定的意义。
This paper reports on the geological occurrences, petrochemistry, trace elements, temperature of inclusions and the chemical composition of the main minerals (topaz, cassiterite, tourmaline, arsenopyrite) The rock type, petrochemistry, trace elements and accessory minerals of the main rock of Dayuoyan (Dayiyashan) are also described. By comparison with the various types of topaz from home and abroad, the authors believe that this is the first rock discovered in our country, and they are the crystalline products of residual magmas of volatile components (especially F and B). The data of Huangyuyan are of great significance in understanding the mechanism of differentiation and evolution of granitic magmas, the genetic relationship between tin mineralization and granitoids, and the prospecting of tin deposits.