As I have mentioned in the Section 1, geochronologists usually determine cooling rates of rocks using a combination of ages of mineral samples separated from the same rock and their corresponding closure temperatures (Tc) that are typically assumed to have fixed values, with some (empirical) uncertainties. An example of this type of work is shown in Figure 7.1. To recapitulate, a closure temperature of a decay system in a mineral is the temperature at which the system becomes effectively closed with respect to diffusion of the species of interest within a mineral grain during cooling. From a...

中文翻译：

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7. 高温温度计时

正如我在第 1 节中提到的，地质年代学家通常使用从同一岩石中分离出来的矿物样本的年龄及其相应的闭合温度 (Tc) 的组合来确定岩石的冷却速率，这些温度通常被假定为具有固定值，其中一些（经验) 不确定性。图 7.1 显示了此类工作的一个示例。概括地说，矿物中衰变系统的闭合温度是系统在冷却过程中相对于感兴趣的物质在矿物颗粒内的扩散变得有效闭合的温度。从一个...