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

crystal

Earth science; Soil science

A regular arrangement of atoms in space.

selectivity coefficient

Earth science; Soil science

A conditional equilibrium coefficient for an ion exchange reaction that is expressed in terms of concentration variables for the exchangeable ions and either concentration ...

temperature

Earth science; Soil science

A potential term which describes the warmth or coldness of an object.

aaaaa-dipyridyl

Earth science; Soil science

A dye that when dissolved in 1N ammonium acetate is used to detect the presence of reduced iron (Fe II) in the soil. A positive reaction indicates the soil is reduced.

micropore

Earth science; Soil science

A class of pores that are sufficiently small that water within these pores is considered immobile, but available for plant extraction, and solute transport is by diffusion only.

oxic horizon

Earth science; Soil science

A mineral soil horizon that is at least 30 cm thick and characterized by the virtual absence of weatherable primary minerals or 2:1 layer silicate clays, the presence of 1:1 layer ...