Characteristics of Clastic Sediment(2) a gravel is subdivided into Boulder gravel >256mm Cobble gravel 64 to 256mm Pebble gravel 64 to 2mm
Characteristics of Clastic Sediment (2) ◼ Gravel is subdivided into: ◼ Boulder gravel >256mm ◼ Cobble gravel 64 to 256mm ◼ Pebble gravel 64 to 2mm
Sorting (1) Sorting identifies sediment in terms of the variability in the size of its particles. Poorly sorted (wide range of particle size), Well sorted (range is small). Changes of grain size typically result from fluctuations in the velocity of the transporting agent, such as water or wind
Sorting (1) ◼ Sorting identifies sediment in terms of the variability in the size of its particles. ◼ Poorly sorted (wide range of particle size), ◼ Well sorted (range is small). ◼ Changes of grain size typically result from fluctuations in the velocity of the transporting agent, such as water or wind
Sorting in sediments
Gravel Sand Silt Clay 100 Beach gravel 80 Flood gravel 8@四 60 40 Till Loess 20 DU une sand 0 o 6-4-2-1012345678910 Size-Frequency Curve ΦSize
Size-Frequency Curve
Sorting, Rounding and Sphericity
Sorting, Rounding and Sphericity