Particle size, also called grain size, means the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be used for other granular materials.
In some schemes "gravel" is anything larger than sand (>2.0 mm), and includes "granule", "pebble", "cobble", and "boulder" in the above table. In this scheme, "pebble" covers the size range 4 to 64 mm (−2 to −6 φ).
A: The term "particle size" refers to the diameter of individual grains of sediment or the lithified particles in clastic rocks.
A: Yes, the term "particle size" may be used for other granular materials as well.
A: In certain schemes, "gravel" is anything larger than sand (>2.0 mm) and includes "granule", "pebble", "cobble", and "boulder" in the above table.
A: In this scheme, "pebble" covers the size range 4 to 64 mm (-2 to -6 φ).
A: No, there is no difference between the terms "particle size" and "grain size". They both have the same meaning.
A: No, "grain size" can only be used to refer to sedimentary or granular materials.
A: Some examples of materials that can be included in the term "gravel" are granule, pebble, cobble, and boulder.
