有机质对海底沉积物中粘土矿物X射线衍射分析结果的影响

X射线衍射法广泛应用于分析粘土矿物的含量和结晶特征,由于粘土矿物易与有机质结合形成有机-粘土复合体,是否去除有机质对分析结果有很大影响,实验结果表明影响最大的是伊-蒙混层矿物(含蒙脱石)和伊利石的含量,为得到可靠实验数据,必须重视对样品的前处理工作,对不同批次样品应该保持一致的处理程序。

Influences of Organic Matter on the Result of X-Ray Diffraction of Clay Minerals in Seabed Sediments

X-ray diffraction method is widely used to analyze the content and crystallization characteristics of clay mineral in the sediment. It is proved that clay mineral are easy to combine with organic matter. It is necessary to remove the organic matter in the sediment during the pretreatment sample. Moreover, it is important that different sample in the same study area should be pretreated and analyzed by the same method.