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

plateau

Earth science; Geology

Any comparatively flat area of great extent or elevation.

intrusive plutonic rocks

Earth science; Geology

Rocks formed beneath the surface where magma tends to cool slowly and develop large crystals. Mineral growth is often enhanced by aqueous fluids that can help carry the chemical ...

polar dune fields

Earth science; Geology

A vast "sea" of sand dunes on Mars that surrounds the north polar cap. The dunes are classic forms known as barchan dunes, small, crescent-shaped hills, and transverse dunes, with ...

polar ice caps

Earth science; Geology

Stacks of layered sediments and ice on Mars which are at least 4-6km thick in the north and 1-2km thick in the south. Cratered plains surround the ice caps and seem to extend ...