Open Access

Table 1

Classification of the different types of sediments, adapted from ASTM (1996)

Sediment type Particle size
Boulders More than 300 mm
Cobblers from 75 to 300 mm
Coarse Gravel from 19 to 75 mm
Fine Gravel from 4.75 to 19 mm
Sand from 4.75 mm to 75 μm
Silt/Clay Less than 75 μm

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