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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

rock cycle

Earth science; Geology

The concept of a sequence of events involving the formation, alteration, destruction and reformation of rocks as a result of geologic processes and which is recurrent, returning ...

ripple marks

Earth science; Geology

Small waves produced by wind or water moving across deposits of sand or silt.

surging glacier

Earth science; Geology

A glacier that moves rapidly (tens of meters per day) as it breaks away from the ground surface on which it rests.

surface of discontinuity

Earth science; Geology

In sand dune formation the surface between quiet air of the wind shadow and the rapidly moving air above.

surf

Earth science; Geology

Produced as a wave steepens and falls forward as the wave nears the shore.

superposition

Earth science; Geology

A statement of relative age in layered rocks: In a series of sedimentary rocks that has not been overturned, the topmost layer is always the youngest and the bottommost layer is ...

superimposed stream

Earth science; Geology

A stream that was established on a new surface and then, as it cut downward, maintained its course despite encountering different lithologies in the process.