Coarse Tail

Particles greater than 2mm diameter which are retained by a 2mm sieve and which are not used for Soil Particle Analysis purposes. To provide an overall picture of a soil it is often helpful to include the coarse tail by expressing the weight of the particles greater than 2mm in diameter as a percentage of the total Fine Earth content within a certain soil mass. For example, a 500g mass of soil is extracted and it is found that 300g consists of material greater than 2mm in diameter, therefore, (300g ÷200g) x 100 = 150% of the soil consists of a Coarse Tail.