Magnesium is one of the most abundant elements in the earth's crust and in seawater. Fractionation of its stable isotopes has been shown to be a useful indicator of many geological, chemical, and biological processes. For example, biogenic carbonates display an ~5‰ range of δ²⁶Mg values, which is attributed to variable degrees of biological control on Mg ions during biomineralisation. Understanding this biological control is essential for developing proxies based on biogenic carbonates.

中文翻译：

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使用激光烧蚀-多收集器电感耦合等离子体质谱法对生物碳酸盐进行原位镁同位素测量：了解生物矿化的新工具。

镁是地壳和海水中最丰富的元素之一。已经证明，稳定同位素的分级分离是许多地质，化学和生物过程的有用指示。例如，生物碳酸盐显示〜5‰δ的范围^26倍的Mg的值，这是生物矿化过程中归因于不同程度上Mg离子的生物控制。了解这种生物控制对于开发基于生物碳酸盐的代理至关重要。