ðeɪ kæn biː kˈʌvɚd baɪ nˈuː ˌoʊvɚbˈæŋk dᵻpˈɑːzɪts, kˈʌt baɪ ɐ tʃˈænəl, ɪɹˈoʊdᵻd kəmplˈiːtli, ɔːɹ kənvˈɜːɾᵻd ˌɪntʊ nˈɑːnflˈuːvɪəl tɚɹˈɛstɹɪəl dᵻpˈɑːzɪts lˈaɪk sˈɔɪlz.
They can be covered by new overbank deposits, cut by a channel, eroded completely, or converted into non-fluvial terrestrial deposits like soils.