The compositions of phyllosilicate and iron oxides for several main types of soils and their corresponding iron-manganese nodules were studied by the means of XRD.

以我国几种常见土壤及相应土壤锰结核为试验材料，应用X-线，究了土壤和锰结核中层盐和氧化的类型组合。

This paper reports a method of specimen preparation for the quick measurement of the thickness of powderof phyllosilicate mineral-casting mounts,and its application in the test of the products.

本文报道了一种快速测试层盐细粉厚度的样品制备方法——浇铸光片法以及电子显微技术在层盐细粉厚度测试中的应用。