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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 
dip
Earth science; Geology
The angle that a structural surface such as a bedding plane or fault surface makes with the horizontal, measured perpendicular to the strike and in the vertical plane.
gully
Earth science; Geology
A very small channel formed by running water. Gullies hold water for brief periods of time after a rain storm or snow melt.
flood plain
Earth science; Geology
A relatively flat surface next to a stream. During floods, when the stream overflows its banks, water flows over the flood plain. Streams construct flood plains that accommodate ...
focus
Earth science; Geology
The point within the Earth which is the center of an earthquake, at which strain energy is first released and converted to elastic wave energy.
greenstone
Earth science; Geology
An altered or metamorphosed mafic igneous rock that owes its dark color to the presence of chlorite, epidote, or amphiboles.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)