The rate and distribution of sedimentation adjacent to a distributary channel in the Macquarie Marshes, N.S.W

    Research output: Contribution to conferenceAbstract

    Abstract

    Lead-210 (210Pb) and radiocarbon (AMS 14C) dating were used in conjunction with sedimentological analysis to document the rate and distribution of sedimentation adjacent to Buckiinguy Break, a distributary marsh feeder channel in the southern Macquarie Marshes. The rates of sedimentation determined from the 210Pb analysis of six sediment cores show significant trends in the spatial distribution of recent sedimentation in the Buckiinguy marsh system. Recent sedimentation was greatest near the channel and decreased with distance across the floodplain, leading to the formation of contemporary levees on the channel margin. Differences between the contemporary and long-term sedimentation rates, as well as historical evidence, indicates a recent change in sedimentation regime, which is related to avulsion of Buckiinguy Break approximately 70 to 90 years ago.
    Original languageEnglish
    Number of pages1
    Publication statusPublished - 13 May 2002
    Event7th South Pacific Environmental Radioactivity Association Conference - Sydney, Australia
    Duration: 13 May 200217 May 2002

    Conference

    Conference7th South Pacific Environmental Radioactivity Association Conference
    CountryAustralia
    CitySydney
    Period13/05/0217/05/02

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