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

impact melts

Earth science; Geology

During an impact event, a compression wave spreads outward from the point of impact. Engulfed by the shock wave, the colliding meteoroid and the surface rocks are melted and ...

inner core of the earth

Earth science; Geology

The central, solid part of the Earth’s core, extending from a depth of about 5100 km to the center (6371) of the Earth; its radius is about 1/3 that of the whole core and is ...

intercrater plains

Earth science; Geology

Mercury was larger and closer to the Sun, therefore its surface cooled more slowly. For a long time after the crust started forming, meteoric debris was able to break through the ...

interferometry

Earth science; Geology

A procedure that allows a number of telescopes to be used as a single, large telescope by taking into account the time differences at which individual waves from an object strike ...

internal structure

Earth science; Geology

The internal structure of Saturn consists of a gas outer layer with traces of ice, a middle layer of liquid metal hydrogen, and, possibly a rocky core.

plutonic intrusive 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 ...