云南彩色大理石成份和结构的扫描电镜研究

Study on the Component and Structure of Yunnan Colorful Marble by SEM

应用扫描电子显微镜及Ｘ射线能谱仪观察分析了云南天然彩色大理石断口显微形态及成份，实验结果表明，大理石颜色变化主要与Ｆｅ元素含量有关，从初步研究来看，大理石中花纹记录了地质形成和变质过程中微区范围内物理及化学的变化．

he microsopical morphology and component of transections of naturalcolorful marbles in Yunnan were studled by the scanning electron microscope and the elec-tron probe X-ray microanalyzer. The results showed that the color changes of marbleswere mainly related to Fe content. According to our preliminary studies,the marblestripes were brought about by the physical and chemical changes in the microscopical zonesduring the geologic evolution.