Mg是地球常量元素,几乎参与了地球上的所有地球化学过程;Mg也是陨石的重要元素,是构成陨石^26Al-^26Mg年代学的一部分。多接收器等离子体质谱(MC-ICP-MS)高精度测定Mg同位素技术的发展,使Mg同位素成为地球化学、宇宙化学和医学等方面研究的新工具。已取得的成果显示,Mg同位素在陨石难熔包体的形成年龄、古环境重建和人体的食物Mg吸收率等方面很有应用前途。
As a major element in the earth, Magnesium (Mg) takes part in all geochemical processes. It is also a component part of the ^26Al-^26Mg chronology for meteorites. The development of the high-precision Mg isotopic measurement technique using multple- collector inductively coupled mass spectrometry (MC-ICP-MS) makes it possible for Mg isotopes to act as a research tool in geochemistry, cosmochemistry and medicine. Mg isotope studies can be used in such research fields as relative ages of inclusions in meteorites, reconstruction of palaeo-envirment and intestinal Mg absorption.