Skip to main content

Paleoclimatology (thesaurus)

Search from vocabulary

Concept information

study material > rock > magmatic rock

Preferred term

magmatic rock  

Definition

  • Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rocks are formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes : an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses. Igneous rocks occur in a wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust. (Adapted from: https://en.wikipedia.org/wiki/Igneous_rock)

Broader concept

Narrower concepts

Entry terms

  • Igneous rock

In other languages

URI

http://data.loterre.fr/ark:/67375/QX8-1DC2HQDP-3

Download this concept:

RDF/XML TURTLE JSON-LD Last modified 4/3/24