Earth science

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

barchan dune

Earth science; Geology

A crescent-shaped dune that forms around a small patch of vegetation, lies perpendicular to the prevailing wind direction, and has a gentle, convex windward slope and a steep, ...

canali

Earth science; Geology

Pertaining to Venus andM ars. Long sinuous forms, canali are best preserved in regions of subdued relief. They have a high width-to-depth ratio and maintain a remarkably constant ...

creep

Earth science; Geology

The slowest form of mass movement, measured in millimeters or centimeters per year and occurring on virtually all slopes, cross bed A bed made up of particles dropped from a ...

acid rain

Earth science; Geology

The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.

coriolis effect

Earth science; Geology

Force due to the Earths rotation, capable of generating currents. It causes moving bodies to be deflected to the right in the Northern Hemisphere and to the left in the Southern ...

automatic tide gage

Earth science; Geology

An instrument that automatically registers the rise and fall of the tide. In some instruments, the registration is accomplished by printing the heights at regular intervals, in ...