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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 
cup anemometer
Earth science; Geology
A rotation-type anemometer consists of an array of three (or four) hemispherical cups mounted symmetrically about a vertical rotation axis. The rate of rotation of the cup array ...
caliche
Earth science; Geology
Gravel, sand, or desert debris cemented by calcium carbonate, an accumulated product of chemical weathering in a dry climate. compare claypan, fragipan, hardpan.
continental drift
Earth science; Geology
The hypothesis, proposed by Alfred Wegener, that today's continents broke off from a single supercontinent and then plowed through the ocean floors into their present positions. ...
current meter
Earth science; Geology
An instrument for measuring the velocity of a current. It is traditionally operated by a wheel equipped with vanes of cups which is rotated by the action of the impinging current. ...
bright highlands
Earth science; Geology
Magellan images of highland regions above 2.5 kilometers (1.5 miles) are unusually bright, characteristic of moist soil. However, liquid water does not exist on the surface and ...
alkalic
Earth science; Geology
Rocks which contain above average amounts of sodium and/or potassium for the group of rocks for which it belongs. For example, the basalts of the capping stage of Hawaiian ...
anthracite
Earth science; Geology
A hard, jet-black coal that develops from lignite and bituminous coal through metamorphism, has a carbon content of 92% to 98%, and contains little or no gas. Anthracite burns ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)