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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 > Geology

travertine (tufa)

Earth science; Geology

Variety of limestone which forms stalactites and stalagmites and other deposits in limestone caves (dripstone) and the mouths of hot and cold calcareous springs.

transverse dune

Earth science; Geology

A long, straight dune, perpendicular to direction of wind.

transported soil

Earth science; Geology

A soil that has been moved from the site of its parent rock.

transform fault

Earth science; Geology

A plate boundary that ideally shows pure strike-slip movement. Associated with the offset segments of midocean ridges.

transform boundary

Earth science; Geology

A plate boundary in which plates on opposite sides of the boundary move past each other in opposite directions.

triangulation

Earth science; Geology

The method of locating an epicenter by determining how far it lies from three widely separated seismographs.

topset bed

Earth science; Geology

Layer of sediments deposited over surface of a delta, nearly horizontal and covering the tops of the inclined foreset beds.