X光微量分析的应用提供了关于矿物标型特征的可靠资料,使我们有可能确立围岩与有关矿物形成的若干主要参数之间的成因关系。这对用常规方法所不可能接近的广大海底地区具有重要的意义。作者试图根据日本海和菲律宾海新第三纪和第四纪沉积物中磁铁矿和氢氧化铁碎屑颗粒的标型特征来判断这些矿物的原生来源。 The application of X-ray microanalysis provides reliable data on the characteristics of mineral types and makes it possible to establish the causal relationship between several major parameters of formation of the surrounding rock and related minerals. This is of great importance to the vast area of ​​the sea that is not accessible by conventional methods. The authors attempt to determine the native origin of these minerals based on the signature features of magnetite and iron hydroxide detrital particles in the Neocene and Quaternary sediments of the Sea of ​​Japan and the Philippines.