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

Histosols

Earth science; Soil science

Organic soils that have organic soil materials in more than half of the upper 80 cm, or that are of any thickness if overlying rock or fragmental materials that have interstices ...

phyllosilicate mineral

Earth science; Soil science

Phyllosilicate minerals have layer structures composed of shared octahedral and tetrahedral sheets. * plane (of atoms) - A flat (planar) array of atoms of one atomic thickness. ...

Fibrists

Earth science; Soil science

Histosols that have a high content of undecomposed plant fibers and a bulk density less than about 0. 1 g cm-3. Fibrists are saturated with water for periods long enough to limit ...

Entisols

Earth science; Soil science

Mineral soils that have no distinct subsurface diagnostic horizons within 1 m of the soil surface. (An order in the U. S. system of soil taxonomy. )

river wash

Earth science; Soil science

In soil survey a map unit that is a miscellaneous area, which is barren alluvial areas of unstablilized sand silt, clay or gravel reworked by frequently by stream activity.