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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

continental collision

Earth science; Geology

Convergence of two continental plates. Such a convergence between the Indian and Eurasian plates is responsible for producing the Himalayas.

continental crust

Earth science; Geology

The rigid, outer layer of relatively low density rock that makes up the continents.

continental drift

Earth science; Geology

A hypothesis proposed by Alfred Wegener suggesting that the continents are not stationary, but have 'drifted' through time. Plate tectonics is the name for the theory that ...

continental volcanoes

Earth science; Geology

In the typical "continental" environment, volcanoes are located in unstable, mountainous belts that have thick roots of granite or granitelike rock. Magmas, generated near the ...

contour lines

Earth science; Geology

Parallel lines used on topographic maps to show the shape and elevation of the land. They connect points of equal elevations.

cordilleran ice sheet

Earth science; Geology

Ice cap that grew in western North America during the Pleistocene Epoch. It began growing first in Canada, eventually covering much of British Columbia, Alaska, the northern U.S., ...

convergent plate boundary

Earth science; Geology

A boundary in which two plates collide. The collision can be between two continents (continental collision), an relatively dense oceanic plate and a more buoyant continental plate ...