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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

chalk

Earth science; Geology

A variety of limestone made up in part of biochemically derived calcite, in form of skeletons or skeletal fragments of microscopic oceanic plants and animals mixed with ...

chemical remanent magnetization

Earth science; Geology

Magnetization acquired isothermally through chemical change at temperatures below the Curie temperature either by grain growth or by alteration of a magnetic parent to a magnetic ...

census

Earth science; Geology

The process of collecting demographic data which is then published. In the UK this is carried out every ten years (next in 2001) and is a legal requirement of every citizen to ...

convergent boundary

Earth science; Geology

A boundary between two plates of the Earth’s crust that are pushing together.

continental rise

Earth science; Geology

The portion of the continental margin that lies between the abyssal plain and the continental slope. The continental rise is underlain by crustal rocks of the ocean basin.

breakwater

Earth science; Geology

A protective wall built offshore and usually parallel to the shore.

continental platform

Earth science; Geology

Continental platforms are the regions adjacent to and surrounding the continental shields. They are typically a relatively thin veneer of sedimentary rock that buries the edges of ...