论文部分内容阅读
黄铁矿是地壳中分布最广的硫化物矿物,常以立方体、八面体和五角十二面体等形态产出。研究表明,特定形貌黄铁矿在形成温度、压力、pH、Eh、氧逸度和硫逸度等方面差异明显,因此,黄铁矿形貌标型特征可以提供丰富的地质信息。目前,国内外黄铁矿形貌研究主要采用野外采样分析法和高温高压实验模拟两种方法。在常规的野外研究中,金矿床中黄铁矿形貌研究程度比较高,且将红外显微镜应用到黄铁矿内部结构分析和包裹体测温取得了突破性的成果,但是红外光难在高温条件下透过黄铁矿这一问题仍有待解决;室内高温高压实验研究主要通过合成黄铁矿的方法观察黄铁矿的生长习性,因研究方法的不同和实验技术条件的限制,目前得到的黄铁矿形貌标型尚不统一,黄铁矿形貌标型研究仍然需要突破和完善。
Pyrite is the most widely distributed sulfide minerals in the crust, often in the form of cubes, octahedra and pentagonal dodecahedron. The results show that pyrite has a significant difference in formation temperature, pressure, pH, Eh, oxygen fugacity and sulfur fugacity. Therefore, pyrite topographic features can provide abundant geological information. At present, the domestic and foreign pyrite morphology mainly uses the field sampling analysis method and high temperature and high pressure experiment simulation two methods. In conventional field studies, the degree of pyrite morphology in gold deposits is relatively high. The application of infrared microscopy to pyrite internal structure analysis and inclusion temperature measurement has achieved breakthrough results. However, the infrared light is difficult to be heated at high temperature The problem of pyrite permeation remains to be solved. The experimental study of indoor high temperature and high pressure mainly observes the growth habit of pyrite through the method of synthesizing pyrite. Due to the different research methods and the limitation of experimental technical conditions, Pyrite morphological type is not uniform, pyrite morphology and type research still need to break through and improve.