geochronology

n. 地质年代学

词形变化

geochronologies 复数 geochronologies

释义与例句

n.
  1. 1.

    The science of dating samples of rock or sediment.

    不可数 可数

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

  2. 2.

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

    可数 不可数

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

  3. 3.

    The division of ancient time into named subdivisions / periods

    不可数 可数

词源

From geo- + chronology.

来源：wiktionary