Global analysis of in situ cosmogenic 26Al and 10Be and inferred erosion rate ratios in modern fluvial sediments indicates widespread sediment storage and burial during transport
Christopher T. Halsted,Paul R. Bierman,Alexandru T. Codilean,Lee B. Corbett,and Marc W. Caffee
School of Science and Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage (CABAH), University of Wollongong, Wollongong NSW 2522, Australia
Lee B. Corbett
Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT 05405, USA
Marc W. Caffee
Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
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Sediment generation on hillslopes and transport through river networks are complex processes that influence landscape evolution. In this study, we compiled sand from 766 river basins and measured its subtle radioactivity to unravel timelines of sediment routing around the world. With these data, we empirically confirm that sediment from large lowland basins in tectonically stable regions typically experiences long periods of burial, while sediment moves rapidly through small upland basins.
Sediment generation on hillslopes and transport through river networks are complex processes...