国际地球化学填图样品分析方法和数据对比  

A comparison of analytical techniques and data for international geochemical mapping samples

作　　者：姚文生[1] 王学求[1] 谢学锦[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《地质通报》2011年第7期1111-1118,共8页Geological Bulletin of China

基　　金：国土资源部行业专项<深部探测技术与实验研究>第四项目(编号:Sinoprobe-04);国家"973"计划课题(编号:2007CB411406)

摘　　要：以中国和世界发达国家或地区(欧洲、北美、澳大利亚与日本)过去10年内完成的或目前正在开展的全球性或国家性地球化学填图项目为例,总结了国际地球化学样品分析技术的新进展,并以中国实验室与欧洲实验室的分析数据的对比结果,剖析国际地球化学填图样品分析技术面临的挑战。研究表明:分析组成地壳所有元素的构想已被越来越多国家性、全球性地球化学填图项目所采纳;中国是世界上唯一具有填图样品76元素分析能力的国家;高水平的分析实验室(欧洲与中国)取得的数据大部分可以实现对比,但仍有10余个元素的分析数据存在明显偏差。实现所有分析元素数据的全球可对比,应是今后国际地球化学填图样品分析技术的主要发展方向。The progress of chemical analysis techniques for national and international geochemical mapping samples are reviewed,focused on the mapping programs completed in the past ten years or ongoing projects such as in China,Europe,North America,Australia and Japan.The comparison of analysis data obtained by Chinese and European laboratories are described.The study shows that the recommendation for analyses of elements by IGCP 259 has been followed by more and more national and global geochemical mapping practice.China now has the ability to determine 76 elements for geochemical mapping.The study demonstrates that comparable analytical data of certain elements can be achieved by different high-level laboratories,such as some European and Chinese laboratories.However,the obvious biases exist between two datasets for more than 10 elements.Development of standard geo-analytical methodologies is still needed to obtain globally comparable geochemical data for international geochemical mapping programs.

关 键 词：国际地球化学填图 分析方法 分析元素 检出限 数据对比 

分 类 号：P595[天文地球—地球化学] P622.3[天文地球—地质学]