Sök
Geological horizon
/dʒˌɪəlˈɒdʒɪkəl həɹˈaɪzən/
/dʒˌɪəlˈɑːdʒɪkəl hɚɹˈaɪzən/
Geological horizon
01
a layer of rock with a particular composition (especially of fossils); for dating the stratum
Sök
a layer of rock with a particular composition (especially of fossils); for dating the stratum