the chronology of the earth, as based on both absolute and relative methods of age determination.
- ge·o·chron·o·log·ic [jee-oh-kron-l-oj-ik], /ˌdʒi oʊˌkrɒn lˈɒdʒ ɪk/, ge·o·chron·o·log·i·cal, adjective
- ge·o·chro·nol·o·gist, noun
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British Dictionary definitions for geochronology
the branch of geology concerned with ordering and dating of events in the earth's history, including the origin of the earth itself
- geochronological (ˌdʒiːəʊˌkrɒnəˈlɒdʒɪkəl), adjective
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