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Igneous rock is one of the three main types of rock on Earth, formed when magma (molten rock beneath the surface) or lava (molten rock that erupts onto the surface) cools and hardens. These rocks are important because they make up much of Earth's crust and can tell us about the planet's internal processes and geological history.
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Wikidata facts
- Subclass of
- rock
- Image
- Roques de Garia - Roque Cinchado.jpg
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- different from
- metamorphic rock
- topic has template
- Template:Igneous rocks
- Commons category
- Igneous rocks
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- Category:Igneous rocks
- Commons gallery
- Igneous rock
- studied by
- igneous petrology
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- exact match
- purl.obolibrary.org/obo/ENVO_00002013
Sources (5)
via Wikidata · CC0
Article · Italiano
Le rocce magmatiche (dette anche eruttive o ignee, dal latino ignis cioè fuoco) si formano in seguito alla solidificazione di magmi, cioè di masse silicatiche fuse contenenti vari componenti (FeO, MgO, CaO, ecc.) e sostanze volatili (acqua, anidride carbonica, idrogeno, metano, ecc.). Costituiscono approssimativamente il 65% della parte superiore della crosta terrestre; ma, sulla superficie della Terra, la loro reale abbondanza viene mascherata dalla diffusa presenza di un sottile strato di rocce sedimentarie e metamorfiche.
Abstract from DBpedia / Wikipedia · CC BY-SA
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