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在中国东部(东经105°以东)约计330万km~2系统采集了28253个岩石样品,组合成2718件分析样,选用了15种可靠的分析方法,以国家一级标准物质监控分析质量,提出了76种化学元素在中国东部出露地壳、沉积盖层、出露基底和上地壳的平均化学组成.
In the eastern part of China (east longitude 105 ° east), about 330,000 km ~ 2 system collected 28,253 rock samples and combined them into 2,718 analytical samples. Fifteen reliable analytical methods were selected to monitor and analyze the quality of national standard substances, 76 chemical elements were proposed in the eastern part of China exposed the crust, sedimentary cover, exposed the basement and the average chemical composition of the upper crust.