#igneousrocks — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #igneousrocks, aggregated by home.social.
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Flow banding (Volcanology 🌋)
Flow banding is a geological term to describe bands or layers that can sometimes be seen in rock that formed from magma. Flow banding is caused by friction of the viscous magma that is in contact with a solid rock interface, usually the wall rock to an intrusive chamber or, if the magma is erupted, the surface of the Earth across which the lav...
https://en.wikipedia.org/wiki/Flow_banding
#FlowBanding #Volcanology #IgneousRocks #IgneousPetrology #StructuralGeology
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Large igneous province (Geomorphology 🏞️)
A large igneous province is an extremely large accumulation of igneous rocks, including intrusive and extrusive, arising when magma travels through the crust towards the surface. The formation of LIPs is variously attributed to mantle plumes or to processes associated with divergent plate tectonics. The formation o...
https://en.wikipedia.org/wiki/Large_igneous_province
#LargeIgneousProvince #Orogeny #Petrology #Volcanology #FloodBasalts #IgneousRocks
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Large igneous province (Petrology 💎)
A large igneous province is an extremely large accumulation of igneous rocks, including intrusive and extrusive, arising when magma travels through the crust towards the surface. The formation of LIPs is variously attributed to mantle plumes or to processes associated with divergent plate tectonics. The formation of som...
https://en.wikipedia.org/wiki/Large_igneous_province
#LargeIgneousProvince #Orogeny #Petrology #Volcanology #FloodBasalts #IgneousRocks
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QAPF diagram (Petrology 💎)
A QAPF diagram is a doubled-triangle plot diagram used to classify intrusive igneous rocks based on their mineralogy. The acronym QAPF stands for "Quartz, Alkali feldspar, Plagioclase, Feldspathoid ", which are the four mineral groups used for classification in a QAPF diagram. The percentages of the Q, A, P and F groups are normalized, i.e., recalculated so that th...