Rivers May Control Dust and Sand Deposits in Northern China

New research has found the first evidence that large rivers control desert sands and dust. But how exactly? First we need to know a little bit about loess. Loess is a silt-sized sediment which is formed by the accumulation of wind-blown dust. Loess deposits may be very thick and often blankets areas. One of the largest deposits of loess is in an area right-fully named the Loess Plateau, a 640,00 square kilometer area in the upper and middle China’s Yellow River and China proper. However, there are also large loess deposits in the central United States and central Europe.

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