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

pits

Earth science; Soil science

Open excavations from which soil and commonly, underlying material, have been removed exposing either rock or other material that supports few or no plants. Includes mine pits, ...

essential (chemical) elements

Earth science; Soil science

Elements required by plants to complete their normal life cycles which includes C, H, O, P, K, N, S, Ca, Fe, Mg, Mn, Cu, B, Zn, Co, Mo, Cl, and Na.

allophane

Earth science; Soil science

An aluminosilicate with primarily short-range structural order. Occurs as exceedingly small spherical particles especially in soils formed from volcanic ash.

unaccommodated

Earth science; Soil science

Applied to peds. Virtually none of the faces of adjoining peds are molds of each other.

chemoorganotroph

Earth science; Soil science

An organism for which organic compounds serve as both energy and carbon sources for cell synthesis. Used synonymously with "heterotroph".

hydroxy-aluminum interlayers

Earth science; Soil science

Polymers of general composition (Al(OH)3-x)m+nx which are adsorbed on interlayer cation exchange sites. Although not exchangeable by unbuffered salt solutions, they are ...