PARTICLE SIZE CLASSIFICATION

particle size distribution 颗粒分布 粒度分布 颗粒尺寸分布 粒径分布 粒子大小分布

Agrees with recommendations made by the American Geophysical Union Subcommittee on Sediment Terminology. The particle size classification is as follows: (1) Clay: 0.00024-0.004 millimeters (mm); (2) Silt: 0.004-0.062 mm; (3) Sand: 0.062-2.0 mm; and (4) Gravel: 2.0-64.0 mm.