Earth science

Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Soil science

symmetry concentration

Earth science; Soil science

That quantity of cations (or anions) equivalent to the exchange capacity of a soil. For example, if the cation exchange capacity of a soil is 10 cmolc kg-1of soil, then 1 ...

soil structure grades

Earth science; Soil science

A grouping or classification of soil structure on the basis of inter- and intra-aggregate adhesion, cohesion, or stability. Four grades of structure are recognized as follows: * ...

soil map unit

Earth science; Soil science

(i) A conceptual group of one to many delineations identified by the same name in a soil survey that represent similar landscape areas comprised of either: (1) the same kind of ...

friable

Earth science; Soil science

A consistency term pertaining to the ease of crumbling of soils.

adsorption isotherm

Earth science; Soil science

A graph of the quantity of a given chemical species bound to an adsorption complex, at fixed temperature, as a function of the concentration of the species in a solution that is ...

Mohr circle of stress

Earth science; Soil science

A graphical representation of the components of stress acting across the various planes at a given point, drawn with reference to axes of normal stress and shear stress.