The improving sensitivity of mass-spectrometers has opened the potential of using stable isotope signatures of the rare Earth elements (REE) as geochemical tracers. However, thus far only limited studies have utilised REE stable isotopes, despite resolvable variations having been observed in a range of systems. An interesting but poorly explored area remains variations in aqueous environments across a range of temperatures including seawater, marine sediments, ion adsorption deposits or hydrothermal systems. Furthermore, the magnitudes and competing effects of mass-dependent isotope fractionation and mass-independent nuclear field shift effects, which can be significant factor for heavy elements especially at high temperatures, remain poorly understood.

中文翻译：

---

量化水系统中轻稀土元素的质量依赖性同位素分馏和核场偏移效应


质谱仪灵敏度的提高为使用稀土元素 （REE） 的稳定同位素特征作为地球化学示踪剂开辟了潜力。然而，到目前为止，只有有限的研究使用了 REE 稳定同位素，尽管在一系列系统中观察到了可分辨的变化。一个有趣但鲜为人知的领域仍然存在水环境在不同温度范围内的变化，包括海水、海洋沉积物、离子吸附沉积物或热液系统。此外，人们对质量依赖性同位素分馏和质量依赖性核场偏移效应的大小和竞争效应仍然知之甚少，这可能是重元素的重要因素，尤其是在高温下。