Page 2: Research news on sediment transport

Sediment transport is the suite of physical processes governing the entrainment, movement, and deposition of particulate material (clastic or biogenic) by a transporting medium, typically water, air, or ice. In fluvial and coastal systems, it is controlled by fluid shear stress, turbulence, grain size, density, and bed roughness, and occurs as bedload, suspended load, or wash load. Sediment transport underpins channel and shoreline morphodynamics, stratigraphic architecture, and landscape evolution, and is commonly quantified using transport equations (e.g., Shields parameter–based formulations) and numerical models that couple hydrodynamics with sediment entrainment, advection, diffusion, and deposition.

Dredging sand and silt has consequences for the North Sea

Through sand extraction and the disposal of dredged harbor silt, about 200 million tons of sediment are relocated every year in the coastal waters of the North Sea. The Wadden Sea is particularly strongly affected. This is ...

How floodwaters impact fossil formation

A new study by the University of Minnesota challenges previous classifications paleontologists use to determine how the fossil record is formed. They investigated how dinosaur and mammal bones are transported and buried by ...

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