"Very fine soil particles with a soapy ... "Chalky soil is defined by a pH over 7 and can therefore consist of different particle sizes, but usually tends to be connected to clay rich soil ...

The activity of these organisms, the type of rock particles, the volume of organic matter, and the proportion of air and water all combine to create hundreds of different types of soil.

Soil is a mixture of tiny particles of rock, dead plants and animals, air and water. Different soils have different properties depending on their composition. Sandy soil is pale coloured and has ...

Anything larger than 3 in. is considered a boulder. "Clays and silts are grouped together as cohesive soils based on the fact [their particles] will tend to laminate due to their small size.

Since physical and chemical erosion yield comparable carbon fluxes, studying both together is essential to avoid biases in erosion-driven carbon flux estimates.