size of soil particles and their classification

soil particle size and their classification [no_toc]

Soil particles

USDA

ISSS

Clay <0.002 mm 0.002 mm
Silt 0.002 –0.05 mm 0.02 mm
Very fine sand 0.05 –0.1 mm
Fine sand 0.1 –0.25 mm 0.2 mm
Medium sand 0.25 –0.5 mm
Coarse sand 0.5 –1.0 mm 2 mm
Very coarse
1.0 –2.0 mm

USDA – United State Department of Agriculture
ISSS – Indian Society of Social Science

 

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