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地质年代学

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地球历史上的重大事件。
地球历史上的重大事件。

地质年代学(英语:Geochronology)是利用岩石本身固有的特征,确定岩石化石沉积物存在年代的科学。绝对地质年代学测定可通过测定放射性同位素进行,而相对地质年代学则可使用古地磁学稳定同位素比等方法。通过结合不同地质年代(以及生物地层学)的线索,可以增进岩石定年的精确度。

定年法

参见

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地质年代学
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