fraction

Equilibrium stable isotope fractionation factors between phases can be calibrated by theoretical calculations, experimental determinations and empirical estimates.

应用理论计算、实验测定和经验估计三种方法均能获取含固体矿物体系的氧同位素分馏系数，其中高温高压实验研究不仅能够得到物相之间的同位素平衡分馏系数，而且能够提供与同位素交换动力学和机理有关的信息。

The modified increment method has been applied to the calculation of oxygen isotope fractionation factors for hydroxide minerals.

对于石英-氢氧化物、方解石-氢氧化物和氢氧化物-水体系，本文计算提供了在0-1200℃温度范围内三组内部一致的分馏系数方程。

The internally consistent fractionation factors for the systems quartz carbonate and carbonate water are acquired for a temperature range of 0 to 1200℃.

应用增量方法系统地计算了碳酸盐矿物的氧同位素分馏系数，得到不同结构和成分的碳酸盐矿物的１８Ｏ富集顺序为：菱铁矿＞铁白云石＞菱镁矿白云石方解石＞文石＞菱锶矿＞白铅矿＞碳钡矿。