Because of these advantages, sedimentary evidence can be dated with sufficient accuracy by radiometric methods to establish a precise chronology of the ice ages.
由于这些优点，可以通过辐射测量方法以足够确定沉积证据的年代，从而建立一个精确的冰河时代年表。
2
We now know the age of the glaciation accurately from radiometric dating of the carbon-14 in logs buried in the drift.
我们现在通过测量掩埋在漂流物中木头放射性的碳-14元素，以精确地确定冰川作用的时期。
3
The surveyed grids were also used for radiometric probing .