English Dictionary

geochronology

名詞

不可算名詞 可算名詞

(uncountable) The science of dating samples of rock or sediment. / (countable) Any one of the methods by which the age of different samples of rock can be determined.

日本語の意味

（不可算名詞）岩石や堆積物のサンプルの年代を測定する学問、すなわち地層年代学。 / （可算名詞）岩石の年代を決定するために用いられる各種の年代測定方法の一つ。

Recent advances in geochronology have refined our understanding of Earth's early history.

近年の地質年代学の進歩により、地球初期の歴史に関する理解が深まりました。

意味（1）

(uncountable) The science of dating samples of rock or sediment.

Geochronology allows us to see more precisely how the world has evolved.

意味（2）

(countable) Any one of the methods by which the age of different samples of rock can be determined.

The history of the East–Antarctic shield has been uncovered through uranium–lead geochronology.

意味（3）

(uncountable) The division of ancient time into named subdivisions / periods

geochronologies （ plural ）