迄今我们习用的地壳化学元素丰度和岩石平均化学组成的文献值大多是收集的汇编数据 ,不少微量元素特别是贵金属等难测元素的丰度所依据的样品的代表性和测试质量难以考证 ,其值存在着颇大的不确定度。本研究立足于实测资料 ,在中国东部系统采集了各类火成岩和变质杂岩体及各时代的标准地层剖面岩石样品 2 82 53个 ,组合成 2 718个分析样。采用中子活化等 15种可靠分析方法测试 ,以国家一级标准物质作质量监控。求得的华北地台地壳、中国东部上地壳和出露地壳及各类岩石的 78种化学元素丰度 ,显著改善了地壳和岩石的化学元素丰度 ,填补了多种岩石微量元素丰度的空白 To date, the literature values ​​for the crustal chemical element abundance and rock average chemical composition that we have used are mostly collected compilation data, and the representativeness and test quality of many trace elements, especially precious metal, based on the abundance of the unpredictable elements are difficult to verify , Its value there is considerable uncertainty. Based on the measured data, this study collected 2 82 53 rock samples of various igneous and metamorphic complex bodies and standard stratigraphic sections of various ages in the eastern part of China, and combined them into 2 718 analytical samples. 15 kinds of reliable analysis methods such as neutron activation are used for testing, and the quality of national standard substances is monitored. The 78 chemical element abundances of the crust in North China Platform, the upper crust and exposed crust in the eastern China and various types of rocks obtained by this method significantly improve the abundance of chemical elements in the crust and rocks, and fill the abundance of trace elements in various rocks blank