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本文叙述了电子自旋共振（简称ＥＳＲ）法所测定的河北省张河湾水库Ｆ１、Ｆ７断层的年龄，将ＥＳＲ年龄和以往测试的ＴＬ年龄进行对比，两种方法测试结果基本吻合，证明ＥＳＲ测定第四纪断层的可能性，Ｆ１、Ｆ７断层的年龄值均大于定义的活动断层年龄值下限（１．１×１０４ａ）。因此，它们不属活动断层，这个结论也被其它地质观测手段所证实。
This paper describes the age of F1 and F7 faults measured by electron spin resonance (ESR) method in Zhanghewan Reservoir in Hebei Province. Comparing the ESR ages with the TL ages of the previous tests, the results of the two methods are in good agreement. It is proved that ESR The possibility of Quaternary faults was determined. The age values of faults F1 and F7 are larger than the lower limit of the defined active fault age (1.1 × 104a). Therefore, they are not active faults, and this conclusion is confirmed by other geological observation methods.