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- W4232010845 abstract "Tidal channels are crucial for the functioning of highly valuable coastal environments, such as estuaries and lagoons. Their properties, however, are currently less understood than those of river systems. To elucidate their past behaviour, an extensive geophysical investigation was performed to reconstruct the evolution of channels and tidal surfaces in the central part of the Lagoon of Venice (Italy) over the past 5000 years. Comparing high-spatial-resolution acoustic data and sedimentary facies analyses of 41 cores, 29 of which were radiocarbon dated, revealed the sedimentation rates in different lagoonal environments and allowed the migration of two large meanders to be reconstructed. The average sedimentation rate of the study succession in the different sedimentary environments was 1.27 mm yr−1. The lateral migration rates were 13–23 m/century. This estimate is consistent with the lateral migration rates determined by comparing aerial photographs of recent channels.Comparing the buried channels with historical and current maps showed that, in general, the number of active channels is now reduced. Their morphology was sometimes simplified by artificial interventions. An understanding of the impact of the artificial interventions over time is useful for the management and conservation of tidal environments, particularly for the Lagoon of Venice, where management authorities are currently debating the possible deepening and rectification of large navigation channels." @default.
- W4232010845 created "2022-05-12" @default.
- W4232010845 date "2016-09-01" @default.
- W4232010845 modified "2023-09-25" @default.
- W4232010845 title "Changes to the Marine Geology Editorial Team in 2016" @default.
- W4232010845 doi "https://doi.org/10.1016/j.margeo.2016.05.011" @default.
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