We have measured the major elements and identified clay minerals of the red weathering crusts to the northern part of Yanshan University, Beidaihe coast, Qinhuangdao, North China, by means of X-ray fluorescence and X-ray diffraction analysis.

• 用X射线荧光光谱法(XRF)和X射线衍射法(XRD)分别测试了秦皇岛北戴河燕山大学北侧红色风化壳(简称燕大风化壳)主量元素和粘粒粘土矿物。