Geology

Geology

The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.

Industry: Earth science

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Geology

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.

Ionic bond

Earth science; Geology

A chemical bond formed by the electrostatic attraction between positive and negative ions; for example, NaCl.

Ion

Earth science; Geology

An atom that has an electrical charge, by virtue of having gained or lost electrons. see cation, anion

Island arc

Earth science; Geology

A curved belt of volcanic islands lying above a subduction zone.

Iron

Earth science; Geology

A meteorite consisting essentially of iron with up to 30% of nickel in solid solution.

Knetic energy

Earth science; Geology

The energy of motion. Kinetic energy is transferred by a shock wave that spreads outward from the point of impact.

Lakshmi planum

Earth science; Geology

A high volcanic plateau situated nearly 5 kilometres (3 miles) above the mean radius of Venus and surrounded by mountain belts (ranges), Akna Montes (west), Freyja Montes (north), Maxwell Montes ...