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roche volcanique
/ʁɔʃ vɔl.ka.nik/
volcanic rock
Les roches volcaniques sont souvent poreuses.
Volcanic rocks are often porous.
technical
A type of rock formed from the cooling and solidification of molten lava or magma erupted from a volcano.
L'observation des roches volcaniques peut révéler l'histoire géologique d'une région.
Observing volcanic rocks can reveal the geological history of a region.
Volcanic rocks are classified into three main types: intrusive (plutonic), extrusive (volcanic), and hypabyssal (subvolcanic).
Collocations
roche volcanique poreuseporous volcanic rockroche volcanique extrusiveextrusive volcanic rockroche volcanique intrusiveintrusive volcanic rock
Synonyms
Related Phrases
Pro Tip
Geological Context
Volcanic rocks are often studied to understand past volcanic activity and the composition of the Earth's mantle.
Gold Rule
Classification
Volcanic rocks are classified based on their formation process and mineral composition.
Word Origin
From French 'roche' (rock) and 'volcanique' (volcanic), derived from Latin 'volcanus' (volcano).
Usage Notes
The term is used in geology to describe rocks formed from volcanic activity, distinct from sedimentary or metamorphic rocks.
Word Breakdown
roche
rock
rootvolcanique
volcanic
rootDictionnaire Français-Anglais