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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

cratered terrain

Earth science; Geology

Mercury's major landforms include impact craters which dominate the landscape, cratered terranes, widespread intercrater plains, multiring basins, and some smooth plains that mav ...

coastal currents

Earth science; Geology

(1) Those currents which flow roughly parallel to the shore and constitute a relatively uniform drift in the deeper water adjacent to the surf zone. These currents may be tidal ...

aneroid barometer

Earth science; Geology

An instrument that measures the atmospheric (barometric) pressure, and operates on the principle of having changing air pressure bend a flexible metallic canister, which is ...

convection cell

Earth science; Geology

A cyclical pattern of movement in a fluid body such as the ocean, the atmosphere, or the Earth’s mantle, driven by density variations which in turn are the result of differences ...

body wave

Earth science; Geology

Any seismic wave that travels through the body of the Earth, rather than along its surface. compare surface wave.

calcic horizon

Earth science; Geology

In regions that receive about 1.3 m of rain or less, calcium carbonate will often accumulate in the lower portion of a soil profile. In fine-grained soils, such as under the ...

caloris basin

Earth science; Geology

Caioris is Latin for heat and the basin is named this because it is near the subsolar point (the point closest to the sun) when Mercury is at aphelion. Caloris basin is 1,300 ...