geological time scale

例句：

1. 1. The paleontologist used this scale to determine the age of the fossils.
   这位古生物学家使用这个尺度来确定化石的年龄。
2. 2. The geological survey revealed that the earthquake was caused by a fault in the earth's crust.
   地质调查发现，这次地震是由地球地壳中的断层引起的。
3. 3.The geological time scale is crucial for understanding the Earth's history and climate change.
   地质时间尺度对于理解地球的历史和气候变化至关重要。