géochronologie w języku angielskim

geochronology [geochronologies]▼◼◼◼(any one of the methods by which the age of different samples of rock can be determined)
noun
[UK: dʒˌiːəʊkrənˈɒlədʒi] [US: dʒˌiːoʊkrənˈɑːlədʒi]