CAJ | 학술논문

模拟天然黄铁矿形成条件和基本过程,利用真空管式炉实验设备,通过热硫化法在250～410℃反应,实验考察不同温度条件下黄铁矿的结晶生长情况.运用扫描电镜、X射线粉晶衍射分析等手段,对实验产物形貌、物相结构特点等进行测试分析.结果表明:250～410℃时均可形成黄铁矿,但250～280℃时黄铁矿结晶程度较差;310～340℃时,可生长出部分晶面;360℃时黄铁矿生长成较为完好的晶体;380℃时黄铁矿结晶成立方体、八面体等自形晶;410℃时可形成结晶好、成分单一的黄铁矿.
모의천연황철광형성조건화기본과정,이용진공관식로실험설비,통과열류화법재250～410℃반응,실험고찰불동온도조건하황철광적결정생장정황.운용소묘전경、X사선분정연사분석등수단,대실험산물형모、물상결구특점등진행측시분석.결과표명:250～410℃시균가형성황철광,단250～280℃시황철광결정정도교차;310～340℃시,가생장출부분정면;360℃시황철광생장성교위완호적정체;380℃시황철광결정성립방체、팔면체등자형정;410℃시가형성결정호、성분단일적황철광.
Natural conditions and formation process for pyrite were simulated. A laboratory vacuum tube furnace heater was used through the thermal curing process between 250℃ and 410℃. Responses were captured from the experimental study at different temperatures under the conditions of pyrite crystallization growth. Using the methods such as scanning electron microscope and X-ray diffraction analysis, the authors analyzed the pyrite in crystal form and structure. The results show that it is formed between 250℃ and 410℃, but it is low in degree of crystallization between 250℃ and 280℃. The partial crystal faces begin to grow between 310℃ and 340℃, and better crystal planes occur at 360℃. It has euhedral crystals that appear as cubes and octahedrons at 380℃. When it is 410℃, the pyrite crystallizes completely with a single composition.