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为研究缅甸翡翠次生部位的元素成分演化特征,采用主量元素测试、微量元素测试、电子探针及X射线粉晶衍射分析方法对缅甸翡翠的灰绿色次生色(翡翠界称之蓝雾)部位、黄蓝色次生色部位及黄(红)色次生色(翡翠界称之黄(红)雾)部位的元素及矿物成分进行了测试与分析。结果显示,与蓝色次色生部位相比较,黄色次生色部位中的Na、Al、Si元素的含量递增对应着X粉晶衍射中伊利石等的出现,黄色次生色部位的Fe、Mg等元素的含量递减对应着绿泥石的峰的消失。表明带有蓝雾的砾石被抬升到地表后,其中的大量的Fe被偏酸性的雨水淋滤带出,少量被氧化成Fe3+后沉淀形成黄、红雾。氧化条件加上湿热气候区偏酸性水的作用,能够使绿泥石和硬玉矿物逐渐地风化分解,形成高岭石和褐铁矿。
In order to study the evolution of the elemental composition of Burma Emerald’s secondary parts, the gray-green secondary color of Burmese emerald (blue emerald in the Emerald community) was analyzed by principal component test, trace element test, electron probe and X-ray powder diffraction analysis ), Yellow-blue secondary color and yellow (red) secondary color (yellow (red) fog in Jade community) were tested and analyzed. The results showed that the contents of Na, Al and Si in the yellow secondary chromophore increased with the occurrence of illite in X powder diffraction, The decrement of Mg and other elements corresponds to the disappearance of chlorite peaks. After the gravel with blue fog was lifted to the surface, a large amount of Fe was leached by acid rain, and a small amount of Fe was precipitated into yellow and red mist after it was oxidized to Fe3 +. Oxidation conditions coupled with humid and climatic areas of acidic water, chlorites and jadeite minerals can gradually weathering and decomposition, the formation of kaolinite and limonite.